Others / Others  / エピタキシャル成長

Others / Others  / 青色発光素子

Others / Others  / 太陽電池

Others / Others  / Li二次電池や光機能素子・光集積部品の研究および指導

Toyota Technological Institute   Specially Appointed Professor

2012.4 - 2016.3

The University of Tokyo   Adjoint Professor

2010.7 - 2012.6

新エネルギー・産業技術開発機構   「太陽光発電システム次世代高性能技術開発」   プロジェクトリーダー

2010.4 - 2015.2

科学技術振興機構   CREST研究領域「太陽光を利用した独創的クリーンエネルギー生成」   研究総括

2009 - 2017.3

宇宙航空研究開発機構   客員教授

2000 - 2017.3

Toyota Technological Institute

1994.4 - 2012.3

NTT光エレクトロニクス研究所   光機能素子研究室   グループリーダー

1988 - 1994

NTT茨城電気通信研究所   エネルギー部品研究室   室長

1986 - 1988

愛知県   「新エネルギー関連産業振興計画策定委員会」委員,「水素エネルギー産業協議会」委員  

2004.4   

PROGRESS IN PHOTOVOLTAICS   編集委員  

2000.1   

Renewable & Sustainable Energy Reviews   編集委員  

1997.1   

European Photovoltaic Solar Energy Conference & Exhibition (EUPVSEC)   国際諮問委員  

1992.3   

IEEE Photovoltaic Specialists Conference (PVSC)   国際諮問委員  

1987   

International Photovoltaic Science and Engineering Conference (PVSEC)   組織委員  

1985.10   

International Solar Energy Soceity (ISES)   ”Solar Cells and Modules” Division Director  

2008 - 2013   

International Science Council   "International Science Panel on Renewable Energy" Group Member  

2005.4 - 2010.3   

17th International Photovoltaic Science and Engineering Conference (PVSEC-17)   組織委員長  

2005 - 2007   

日本学術振興会   「次世代太陽光発電システム第175委員会」副委員長  

2004.4 - 2020.3   

愛知県科学技術交流財団   「先端太陽電池応用技術研究会」座長  

2002.4 - 2008.3   

文部科学省   「成層圏プラットフォーム協議会」委員  

2002.4 - 2008.3   

3rd World Conference on Photovoltaic Energy Conversion (WCPEC-3)   論文委員長  

2001 - 2003   

宇宙航空研究開発機構（JAXA)   「太陽電池の放射線強化技術委員会」委員長  

1998.4 - 2015.3   

応用物理学会   「応用電子物性分科会」会計幹事  

1996.4 - 2002.3   

電気学会   「太陽光発電実用化技術調査専門委員会」委員長  

1996.4 - 2000.4   

国際エネルギー機関   PV専門委員  

1994.2 - 1999.3   

World Conference on Photovoltaic Energy Conversion (WCPEC)   組織副委員長,論文副委員長,国際諮問委員長  

1993.1 - 2000.12   

経産省,通産省   「ニューサンシャイン計画研究開発推進会議」委員  

1992.8 - 2020.3   

新エネルギー・産業技術総合開発機構（NEDO)   「太陽・風力技術室議委員会」委員,「太陽光発電技術」委員,「海外協力」委員,「化合物半導体製造装置開発」委員,「結晶系太陽電池開発部会」部会長  

1991.1 - 2020.3   

Analysis for the Potential of High-Efficiency and Low-Cost Vehicle-Integrated Photovoltaics Reviewed

Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima,Yoshio Ohshita, Taizo Masuda*, Kenichi Okumura*, Akinori Satou*, Takashi Nakado*, Kazumi Yamada*, Tsutomu Tanimoto*, Yusuke Zushi*, Tatsuya Takamoto*, Kenji Araki*,Yasuyuki Ota*, Kensuke Nishioka**

Solar RRL   2022   2200556   2022.9

Optimization of asymmetrical static-LCPV dependent on applications Reviewed

Kenji Araki*, Masafumi Yamaguchi, Yasuyuki Ota*, Kensuke Nishioka*

AIP Conference Proceedings   2550   040003   2022.9

Overview of Concentrator Solar cells and Analysis for their Non-radiative Recombination

Masafumi Yamaguchi, Kan-Hua Lee*, Daisuke Sato*, Kenji Araki*, Nobuaki Kojima, Yoshio Ohshita

ISES Solar World Congress 2021 Proceedings   92 - 100   2022.7

Impact of Photovoltaics-powered Vehicles

Masafumi Yamaguchi, Taizo Masuda*, Kenji Araki*

ISES Solar World Congress 2021 Proceedings   176 - 182   2022.7

Loss Analysis of High-Efficiency Perovskite/Si Tandem Solar Cells for Large Market Applications Reviewed

Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita

Energy and Power Engineering   2022 ( 14 )   167 - 180   2022.4

Impact and recent approaches of high-efficiency solar cell modules for PV-powered vehicles Reviewed

Masafumi Yamaguchi, Taizo Masuda*, Kenji Araki*, Yasuyuki Ota*, Kensuke Nishioka**

Japanese Journal of Applied Physics   61   SC0802   2022.3

Analysis for efficiency potential of II–VI compound, chalcopyrite, and kesterite‑based tandem solar cells Reviewed

Masafumi Yamaguchi, Hitoshi Tampo*, Hajime Shibata*, Patrick Schygulla*, Frank Dimroth**, Nobuaki Kojima, Yoshio Ohshita

Journal of Materials Research   37   445 - 456   2022.1

Impact of climatic conditions on prospects for integrated photovoltaics in electric vehicles Reviewed

Christian Thiel*, Ana Gracia Amillo*, Alessandro Tansini*, Anastasios Tsakalidis*, Georgios Fontaras*, Ewan Dunlop*, Nigel Taylor*, Arnulf Jager-Waldau*, Kenji Araki*, Kensuke Nishioka*, Yasuyuki Ota**, Masafumi Yamaguchi

Renewable and Sustainable Energy Review   158   112109   2022.1

Approaches for High-Efficiency III-V/Si Tandem Solar Cells Reviewed

Masafumi Yamaguchi, Kan-Hua Lee*, Patrick Schygulla*, Frank Dimroth*, Tatsuya Takamoto*, Ryo Ozaki*, Kyotaro Nakamura, Nobuaki Kojima, Yoshio Ohshita

Energy and Power Engineering   13   413 - 427   2021.12

Development of high-efficiency solar cell modules for PV-powered vehicles Reviewed

Masafumi Yamaguchi, Kenji Araki*, Yasuyuki Ota*, Kensuke Nishioka*, Tatsuya Takamoto*, Christian Thiel*, Anastasios Tsakalidis*, Arnulf Jäger-Waldau*, Taizo Masuda*, Kenichi Okumura*, Takashi Nakado*, Kazumi Yamada*, Yusuke Zushi*, Tsutomu Tanimoto**, Kyotaro Nakamura, Ryo Ozaki*, Nobuaki Kojima, Yoshio Ohshita

Proceedings of the 38th European Photovoltaic Solar Energy Conference and Exhibition   1409 - 1411   2021.11

 Analysis of temperature coefficients and their effect on efficiency of solar cell modules for photovoltaics-powered vehicles Reviewed

Masafumi Yamaguchi, Taizo Masuda*, Kenji Araki*, Yasuyuki Ota*, Kensuke Nishioka*, Tatsuya Takamoto*, Christian Thiel*, Anastasios Tsakalidis*, Arnulf Jaeger-Waldau*, Kenichi Okumura*, Akinori Satou*, Takashi Nakado*, Kazumi Yamada*, Yusuke Zushi*, Tsutomu Tanimoto**, Kyotaro Nakamura, Ryo Ozaki*, Nobuaki Kojima, Yoshio Ohshita

Journal of Physics D: Applied Physics   54   504002   2021.9

Structural Characterization of GaAs Layer Grown on 2D-GaSe/Si(111) Substrate for Rapid Epitaxial Lift Off Reviewed

Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC)   1941 - 1942   2021.8

Potential of Si Tandem Solar Cell Modules for PV-Powered Vehicles Reviewed

Masafumi Yamaguchi, Kenji Araki*, Yasuyuki Ota*, Kensuke Nishioka*, Tatsuya Takamoto*, Taizo Masuda*, Kenichi Okumura*, Akinori Satou*, Takashi Nakado*, Kazumi Yamada*, Yusuke Zushi*, Tsutomu Tanimoto**, Kyotaro Nakamura, Ryo Ozaki*, Nobuaki Kojima,Yoshio Ohshita

Proceedings of the 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC)   120 - 122   2021.8

Development of High-Efficiency Solar Cell Modules for Photovoltaic-Powered Vehicles Reviewed

Masafumi Yamaguchi, Ryo Ozaki*, Kyotaro Nakamura, Kan-Hua Lee **, Nobuaki Kojima,Yoshio Ohshita, Taizo Masuda*, Kenichi Okumura*, Akinori Satou*, Takashi Nakado*, Kazumi Yamada*, Kenji Araki*, Yasuyuki Ota*, Kensuke Nishioka*, Tatsuya Takamoto*, Yusuke Zushi*, Tsutomu Tanimoto*, Christian Thiel*, Anastasios Tsakalidis*, Arunulf Jäger-Waldau**

Solar RRL   2021   2100429   2021.8

Multi-junction solar cells paving the way for super high-efficiency Reviewed

Masafumi Yamaguchi, Frank Dimroth*, John F. Geisz*, Nicholas J. Ekins-Daukes**

Journal of Applied Physics   129   240901   2021.6

Importance of Developing Photovoltaics-Powered Vehicles Reviewed

Masafumi Yamaguchi, Taizo Masuda*, Takashi Nakado*, Yusuke Zushi*, Kenji Araki*, Tatsuya Takamoto*, Kenichi Okumura*, Akinori Satou*, Kazumi Yamada*, Yasuyuki Ota*, Kensuke Nishioka*, Tsutomu Tanimoto**, Kyotaro Nakamura, Ryo Ozaki*, Nobuaki Kojima,Yoshio Ohshita

Energy and Power Engineering   13 ( 5 )   147 - 162   2021.5

Defect analysis of crystalline Si solar cells by learning radiation-induced defects in Si Reviewed

Masafumi Yamaguchi, Takefumi Kamioka **, Nobuaki Kojima, Yoshio Ohshita

MRS Communications   11 ( 3 )   272 - 277   2021.5

Low-temperature direct growth for low dislocation density in III-V on Si towards high-efficiency III-V/Si tandem solar cells Reviewed

Masafumi Yamaguchi, Yu-Cian Wang*, Nobuaki Kojima, Akio Yamamoto **,Yoshio Ohshita

Japanese Journal of Applied Physics   60 ( SB )   SBBF14   2021.2

Analysis for non-radiative recombination and resistance loss in chalcopyrite and kesterite solar cells Reviewed

Masafumi Yamaguchi, Hitoshi Tampo*, Hajime Shibata*, Kan-Hua Lee**, Kenji Araki, Nobuaki Kojima, Yoshio Ohshita

Japanese Journal of Applied Physics   60   SBBF05   2021.1

Stretchable micro-scale concentrator photovoltaic module with 15.4% efficiency for three-dimensional curved surfaces Reviewed

Daisuke Sato*, Taizo Masuda**, Kenji Araki, Masafumi Yamaguchi, Kenichi Okumura*, Akinori Sato*, Ryota Tomizawa* & Noboru Yamada**

Communications Materials   2   7   2021.1

How did the knowledge of CPV contribute to the standardization activity of VIPV? Reviewed

Kenji Araki, Liang Ji*, George Kelly*, Arjo van der Ham*, Emilio Agudo*, Ignacio Antón*, Mathieu Baudrit*, Anna Carr*, Rebeca Herrero*, Sarah Kurtz*, Zhengxin Liu*, Mauro Pravettoni*, Yasuyuki Ota*, Hiromi Tobita*, Sewang Yoon*, Masahiro Yoshita**, Masafumi Yamaguchi, Kensuke Nishioka **

AIP Conference Proceedings   2298 ( 1 )   060001   2020.11

Super-multi-junction solar cells - Device configuration with the potential for more than 50% annual energy conversion efficiency (CPV) Reviewed

Kenji Araki, Yasuyuki Ota*, Hiromu Saiki*, Hiroki Tawa*, Kensuke Nishioka*, Daisuke Sato**, Masafumi Yamaguchi

AIP Conference Proceedings   2298 ( 1 )   020001   2020.11

Epitaxial GaAs Lift-off from Si(111) Wafer via 2D-GaSe Buffer Layer Reviewed

Nobuaki Kojima, Yu-Cian Wang **, Masafumi Yamaguchi, Yoshio Ohshita

Proceedings of the 37th European Photovoltaic Solar Energy Conference and Exhibition   615 - 617   2020.10

Analysis for nonradiative recombination loss and radiation degradation of Si space solar cells Reviewed

Masafumi Yamaguchi, Kan-Hua Lee **, Kenji Araki, Nobuaki Kojima, Yasuki Okuno **, Mitsuru Imaizumi **

Progress in Photovoltaics   29   98 - 108   2020.9

Development of high-efficiency and low-cost solar cells for PV-powered vehicles application Reviewed

Masafumi Yamaguchi, Taizo Masuda **, Kenji Araki, Daisuke Sato*, Kan-Hua Lee**, Nobuaki Kojima, Tatsuya Takamoto*, Kenichi Okumura*, Akinori Satou*, Kazumi Yamada*, Takashi Nakado*, Yusuke Zushi**, Yoshio Ohshita, Mitsuhiro Yamazaki **

Progress in Photovoltaics   29 ( 7 )   684 - 693   2020.9

Role of PV-Powered Vehicles in Low-Carbon Society and Some Approaches of High-Efficiency Solar Cell Modules for Cars Reviewed

Masafumi Yamaguchi, Taizo Masuda **, Kenji Araki, Daisuke Sato, Kan-Hua Lee*, Nobuaki Kojima, Tatsuya Takamoto*, Kenichi Okumura*, Akinori Satou*, Kazumi Yamada*, Takashi Nakado*, Yusuke Zushi*, Mitsuhiro Yamazaki*, Hiroyuki Yamada**

Energy and Power Engineering   12 ( 6 )   375 - 395   2020.6

Overview and Loss Analysis of High-Efficincy III-V Compound Single-Junction Solar Cells Reviewed

Masafumi Yamaguchi, Kenji Araki **, Nobuaki Kojima, Yoshio Ohshita

Proceedings of the 2020 IEEE 47th Photovoltaic Specialists Conference (PVSC)   149 - 151   2020.6

Importance of Developing High-Efficiency Solar Cells for PV-Powered Vehicles Reviewed

Masafumi Yamaguchi, Kenji Araki **, Nobuaki Kojima, Tatsuta Takamoto*, Taizo Masuda*, Akinori Satou*, Kazumi Yamada*, Mitsuhiro Yamazaki**

Proceedings of the 2020 IEEE 47th Photovoltaic Specialists Conference (PVSC)   221 - 223   2020.6

Nearly 30%-efficient low-concentration static photovoltaic modules with IMM triple-junction solar cells Reviewed

Daisuke Sato **, Kenji Araki, Tatsuya Takamoto*, Hiroyuki Juso*, Noboru Yamada*, Taizo Masuda**, Masafumi Yamaguchi

Applied Physics Express   13 ( 7 )   077001   2020.6

The Outdoor Field Test and Energy Yield Model of the Four-Terminal on Si Tandem PV Module Reviewed

Kenji Araki, Hiroki Tawa **, Hiromu Saiki **, Yasuyuki Ota **, Kensuke Nishioka **, Masafumi Yamaguchi

Applied Sciences   10 ( 7 )   2529   2020.4

Proposals for Accelerating Photovoltaics Installations in Japan and Further Developments of Science and Technologies of Photovoltaics Reviewed

Masafumi Yamaguchi, リ　カンファ, Kenji Araki, Nobuaki Kojima, Taizo Masuda*, Kazutaka Kimura*, Akinori Satou**

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   1724 - 1728   2020.2

Epitaxial GaAs Lift Off via III-VI Layered Compounds Reviewed

Nobuaki Kojima, ワン　ユ チェン, Kei Kawakatsu, Akio Yamamoto*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   1015 - 1017   2020.2

GaAs Grown on Si (111) by inserting metal selenides films Reviewed

ワン　ユ チェン, Nobuaki Kojima, Kei Kawakatsu, Akio Yamamoto*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   1068 - 1070   2020.2

Demonstration of High Efficiency Static Low-Concentration Photovoltaic Module Using Hybrid Lens Arrays Reviewed

リ　カンファ, 佐藤　大輔, Kenji Araki, Noboru Yamada **, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   0255 - 0259   2020.2

Design of the Micro-Köhler Concentrator Optics for CPV Application Reviewed

Kenji Araki, リ　カンファ, Nobuhiko Hayashi*, Kouki Ichihashi*, Shutetsu Kanayama*, Takuji Inohara*, Yohei Morita*, Michihiko Takase**, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   0196 - 0201   2020.2

Alignment Tolerance Control of the Micro CPV Array Using Monte Carlo Methods Reviewed

Kenji Araki, リ　カンファ, Nobuhiko Hayashi*, Kouki Ichihashi*, Shutetsu Kanayama*, Takuji Inohara*, Yohei Morita*, Michihiko Takase**, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   0202 - 0209   2020.2

Curve Correction of the Energy Yield by Flexible Photovoltaics for VIPV and BIPV Applications Using a Simple Correction Factor Reviewed

Kenji Araki, Yasuyuki Ota **, リ　カンファ, Noboru Yamada **, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   1584 - 1591   2020.2

Rough and Straightforward Estimation of the Mismatching Loss by Partial Shading of the PV Modules Installed on an Urban Area or Car-Roof Reviewed

Kenji Araki, リ　カンファ, Taizo Masuda*, Yoshitaka Hayakawa*, Noboru Yamada**, Masafumi Yamaguchi, Yasuyuki Ota**

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   1218 - 1225   2020.2

Modeling and Standardization Researches and Discussions of the Car-roof PV through International Web Meetings Reviewed

Kenji Araki, Liang Ji*, George Kelly*, Emilio Agudo*, Ignacio Anton*, Mathieu Baudrit*, Anna Carr*, Rebeca Herrero*, Sarah Kurtz*, Zhengxin Liu*, Moritz Limpinsel*, Zhonglin Lu*, Mauro Pravettoni*, Paul Robusto*, Hiromi Tobita*, Qian Wu*, Zhenyu Wu*, Sewang Yoon**, Masafumi Yamaguchi

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   2722 - 2729   2020.2

Analysis for Radiation Degradation of Advanced Si Space Solar Cells Reviewed

Masafumi Yamaguchi, リ　カンファ, Kenji Araki, Nobuaki Kojima, Yasuki Okuno*, Mitsuru Imaizumi**

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   2377 - 2380   2020.2

Overview of Si Tandem Solar Cells and Approaches to PV-Powered Vehicle Applications Reviewed

Masafumi Yamaguchi, リ　カンファ, 佐藤　大輔, Kenji Araki, Nobuaki Kojima, Tatsuya Takamoto*, Taizo Masuda*, Akinori Satou**

MRS Advances   441 - 450   2020.1

online発行 Overview of Si Tandem Solar Cells and Approaches to PV-Powered Vehicle Applications Reviewed

Masafumi Yamaguchi, リ　カンファ, 佐藤　大輔, Kenji Araki, Nobuaki Kojima, Tatsuya Takamoto*, Taizo Masuda*, Akinori Satou**

MRS Advances   2020.1

Measurement and Modeling of the 3-D Solar Irradiance for Vehicle-Integrated Photovoltaic Reviewed

Kenji Araki, Yasuyuki Ota**, Masafumi Yamaguchi

MDPI   10 ( 3 )   872   2020.1

Super-Multi-Junction Solar Cells, a New Configuration of the Robust and High-Efficiency Solar Cell and Its Application – Operation Model Based on the Annual Monitoring of the Multi-Junction PV Modules Reviewed

Kenji Araki, Yasuyuki Ota*, Kan-Hua Lee*, Kensuke Nishioka**, Masafumi Yamaguchi

Proceedings of 2019 18th International Conference on Optical Communications and Networks (ICOCN)   2019.12

Degradation prediction of a γ-ray radiation dosimeter using InGaP solar cells in a primary containment vessel of the Fukushima Daiichi Nuclear Power Station Reviewed

Yasuki Okuno **, Masafumi Yamaguchi, Nariaki Okubo*, Mitsuru Imaizumi**

Journal of Nuclear Science and Technology   57 ( 4 )   457 - 462   2019.11

Impact of Nonplanar Panels on Photovoltaic Power Generation in the Case of Vehicles Reviewed

Takeshi Tayagaki**, Kenji Araki, Masafumi Yamaguchi, Takeyoshi Sugaya**

IEEE Journal of Photovoltaics   9 ( 6 )   1721 - 1726   2019.11

Analysis of nonradiative recombination in quantum dot solar cells and materials Reviewed

Lin Zhu **, リ　カンファ, Masafumi Yamaguchi, Hidefumi Akiyama*, Yoshihiko Kanemitsu**, Kenji Araki, Nobuaki Kojima

Progress in Photovoltaics   27 ( 11 )   971 - 977   2019.11

Super-Multi-Junction Solar Cells—Device Configuration with the Potential for More Than 50% Annual Energy Conversion Efficiency (Non-Concentration) Reviewed

Kenji Araki, Yasuyuki Ota*, Hiromu Saiki*, Hiroki Tawa*, Kensuke Nishioka**, Masafumi Yamaguchi

Applied Sciences   9 ( 21 )   4598   2019.10

Some Approaches of PV-Powered Vehicles Applications Reviewed

Masafumi Yamaguchi, Kenji Araki, 佐藤　大輔, リ　カンファ, Nobuaki Kojima, Kyotaro Nakamura,Yoshio Ohshita, Taizo Masuda*, Akinori Satou*, Kazumi Yamada*, Takashi Nakado*, Tatsuya Takamoto*, Takehiko Sato*, Mitsuhiro Yamazaki*, Mami Hasegawa*, Hiroyuki Yamada**

Proceedings of the 36th European Photovoltaic Solar Energy Conference and Exhibition   1787 - 1791   2019.10

Why and how does car-roof PV create 50 GW/year of new installations? Also, why is a static CPV suitable to this application? Reviewed

Kenji Araki, 佐藤　大輔, Taizo Masuda**, リ　カンファ, Noboru Yamada**, Masafumi Yamaguchi

AIP Conference Proceedings   2149 ( 1 )   050003   2019.8

Demonstration of the performance static low-concentration module using hybrid lens arrays Reviewed

リ　カンファ, 佐藤　大輔, Kenji Araki, Noboru Yamada**, Masafumi Yamaguchi

AIP Conference Proceedings   2149   070009   2019.8

Improvement of the spectral sensitivity of CPV by enhancing luminescence coupling and fine-tuning to the bottom-bandgap matched to local atmospheric conditions Reviewed

Kenji Araki, Yasuyuki Ota**, リ　カンファ, Kensuke Nishioka**, Masafumi Yamaguchi

AIP Conference Proceedings   2149   060001   2019.8

A Mesh Downsampling Algorithm for Equivalent Circuit Network Simulation of Multi-Junction Solar Cells Reviewed

リ　カンファ, Kenji Araki, Masafumi Yamaguchi

IEEE Access   7   97208 - 97215   2019.7

A mobile multipyranometer array for the assessment of solar irradiance incident on a photovoltaic-powered vehicle Reviewed

Yasuyuki Ota**, Taizo Masuda**, Kenji Araki, Masafumi Yamaguchi

Solar Energy   184   84 - 89   2019.5

Design of low-concentration static III-V/Si partial CPV module with 27.3% annual efficiency for car-roof application Reviewed

Daisuke Sato**, リ　カンファ, Kenji Araki, Taizo Masuda**, Masafumi Yamaguchi, Noboru Yamada**

Progress in Photovoltaics   2019   1 - 10   2019.3

Super-Multijunction Cell, A New Solar Cell Overcoming the Spectrum Loss of Multijunction Cells Reviewed

Kenji Araki, リ　カンファ, Nobuaki Kojima, Masafumi Yamaguchi

グランド再生可能エネルギー国際会議論文集   45   2019.3

How Does R&D on the Car-Roof PV Impact to the Entire PV Technologies? Reviewed

Kenji Araki, リ　カンファ, Nobuaki Kojima, Masafumi Yamaguchi

グランド再生可能エネルギー国際会議論文集   39   2019.3

Analysis of nonradiative recombination in quantum dot solar cells and materials Reviewed

Lin Zhu**, リ　カンファ, Masafumi Yamaguchi, Hidefumi Akiyama*, Yoshihiko Kanemitsu**, Kenji Araki, Nobuaki Kojima

Progress in Photovoltaics   2019   1 - 7   2019.1

XRD Pole Figure Analysis of In2Se3Zinc-Blende Like (ZBL) Van der Waals Template for Epitaxial GaAs Lift Off Reviewed

Nobuaki Kojima, ワン　ユ チェン, Kei Kawakatsu*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   214 - 215   2018.11 （   ISSN:0160-8371 ）

Optimization of the Partially Radiative-coupling Multi-junction Solar Cells Considering Fluctuation of Atmospheric Conditions Reviewed

Kenji Araki, Yasuyuki Ota**, リ　カンファ, Kensuke Nishioka**, Masafumi Yamaguchi

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   1661 - 1666   2018.11 （   ISSN:0160-8371 ）

Design and Evaluation of Low-concentration Static III-V/Si Partial CPV Module for Car-rooftop Application Reviewed

Daisuke Sato**, リ　カンファ, Kenji Araki, Taizo Masuda**, Masafumi Yamaguchi, Noboru Yamada**

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   954 - 957   2018.11 （   ISSN:0160-8371 ）

Verification of uncertainty in CPV’s outdoor performance Reviewed

Hiromu Saiki*, Takumi Sakai**, Kenji Araki, Yasuyuki Ota**, リ　カンファ, Masafumi Yamaguchi, Kensuke Nishioka**

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   949 - 953   2018.11 （   ISSN:0160-8371 ）

Achieving High Efficiency Static Low-Concentration Photovoltaic Module Using Hybrid Lens Arrays Reviewed

リ　カンファ, Kenji Araki, Masafumi Yamaguchi

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   905 - 908   2018.11 （   ISSN:0160-8371 ）

Toward the Standardization of the Car-roof PV – The challenge to the 3-D Sunshine Modeling and Rating of the 3-D Continuously Curved PV Panel Reviewed

Kenji Araki, Yasuyuki Ota*, Kensuke Nishioka*, Hiromi Tobita*, Liang Ji*, George Kelly**, Masafumi Yamaguchi

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   368 - 373   2018.11 （   ISSN:0160-8371 ）

Low-Temperature grown Gallium Arsenide on Silicon by using Migration-Enhanced Epitaxy Reviewed

ワン　ユ チェン, Akio Yamamoto*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   264 - 267   2018.11 （   ISSN:0160-8371 ）

Curve-Correction Factor for Characterization of the Output of a Three-Dimensional Curved Photovoltaic Module on a Car Roof Reviewed

Yasuyuki Ota*, Taizo Masuda**, Kenji Araki, Masafumi Yamaguchi

Coatings   8 ( 12 )   432   2018.11

Design and Evaluation of a III-V/Si Partial CPV Module for Maximization of Power Generation per Unit Module Area Reviewed

Daisuke Sato**, リ　カンファ, Kenji Araki, Masafumi Yamaguchi, Noboru Yamada**

IEEE JOURNAL OF PHOTOVOLTAICS   9 ( 1 )   147 - 153   2018.11

InGaP/GaAs/ITO/Si Hybrid Triple-Junction Cells with GaAs/ITO Bonding Interfaces Reviewed

Naoteru Shigekawa*, Tomoya Hara*, Tomoki Ogawa*, Jianbo Liang**, Takefumi Kamioka**, Kenji Araki, Masafumi Yamaguchi

Proceedings of 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC44)   2548 - 2550   2018.11

CPV Technologies Not Relying on Perfection of Trackers Reviewed

Kenji Araki, Yasuyuki Ota**, リ　カンファ, Kensuke Nishioka**, Masafumi Yamaguchi

Proceedings of 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC44)   1479 - 1484   2018.11

Proposal of the Bandgap Design Using the Sun Height of the Culmination on the Winter Solstice Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

Proceedings of 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC44)   412 - 416   2018.11

Design and Evaluation of Partial Concentration III-V/Si Module with Enhanced Diffuse Sunlight Transmission Reviewed

Daisuke Sato**, Noboru Yamada**, リ　カンファ, Kenji Araki, Masafumi Yamaguchi

Proceedings of 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC44)   1743 - 1746   2018.11

Generalized Numerical Design of Axially-asymmetrical and Grid-arranged Static CPV Array for Maximizing Annual Energy Generation Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

Proceedings of 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC44)   1714 - 1718   2018.11

Analyzing the Cost Reduction Potential of III-V/Si Hybrid Concentrator Photovoltaic Systems Reviewed

リ　カンファ, Kenji Araki, Masafumi Yamaguchi

Proceedings of 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC44)   1711 - 1713   2018.11

Analysis for Non-Radiative Recombination in Quantum Dot Solar Cells and Materials Reviewed

Lin Zhu**, リ　カンファ, Masafumi Yamaguchi, Hidefumi Akiyama*, Yoshihiko Kanemitsu**, Kenji Araki, Nobuaki Kojima

Proceedings of the 35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2018)   6 - 11   2018.11

Super-Multijunction Cell, A New Solar Cell Overcoming the Spectrum Loss of Multijunction Cells Reviewed

Kenji Araki, リ　カンファ, Nobuaki Kojima, Masafumi Yamaguchi

Grand Renewable Energy 2018 Proceedings   O - Pv   2018.10

How Does R&D on the Car-Roof PV Impact to the Entire PV Technologies? Reviewed

Kenji Araki, リ　カンファ, Nobuaki Kojima, Masafumi Yamaguchi

Grand Renewable Energy 2018 Proceedings   O - Pv   2018.10

Breaking the Limit of the Acceptance Angle of the Solar Concentrators Within the 2nd Law of Thermodynamics Reviewed

Daisuke Sato*, Akihiro Abe**, Kenji Araki, リ　カンファ, Noboru Yamada**, Masafumi Yamaguchi

Grand Renewable Energy 2018 proceedings   O - Pv   2018.10

Analysis for efficiency potential of crystalline Si solar cells Reviewed

Masafumi Yamaguchi, リ　カンファ, Kenji Araki, Nobuaki Kojima, Yoshio Ohshita

Journal of Materials Research   33 ( 17 )   2621 - 2626   2018.9

Achieving Wide-Acceptance Angle and High On-Axis Performance Static Low-Concentration Module Using Hybrid Lens Arrays Reviewed

リ　カンファ, Kenji Araki, Nobuaki Kojima, Masafumi Yamaguchi

AIP Conference Proceedings   2012   040006   2018.9

The Possibility of the Static LCPV to Mechanical-stack III-V//Si Module Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

AIP Conference Proceedings   2012   090002   2018.9

Analysis of Fluctuation of Atmospheric Parameters and its Impact on Performance of CPV Reviewed

Kenji Araki, Yasuyuki Ota**, リ　カンファ, Takumi Sakai*, Kensuke Nishioka**, Masafumi Yamaguchi

AIP Conference Proceedings   2012   080002   2018.9

To Do List for Research and Development and International Standardization to Achieve the Goal of Running a Majority of Electric Vehicles on Solar Energy Reviewed

Kenji Araki, Liang Ji*, George Kelly**, Masafumi Yamaguchi

Coatings   8 ( 7 )   251   2018.7

Evaluation and optimization of coating for wide acceptance angle concentrator photovoltaic module Reviewed

Nawwar Ahmad*, Yasuyuki Ota**, Kenji Araki, リ　カンファ, Masafumi Yamaguchi, Kensuke Nishioka**

Japanese Journal of Applied Physics   57 ( 8S3 )   08RD02   2018.6

GaAs/Indium Tin Oxide/Si Bonding Junctions for III-V-on-Si Hybrid Multijunction Cells With Low Series Resistance Reviewed

Naoteru Shigekawa*, Tomoya Hara*, Tomoki Ogawa*, Jianbo Liang*, Takefumi Kamioka**, Kenji Araki, Masafumi Yamaguchi

IEEE Journal of Photovoltaics   8 ( 3 )   879 - 886   2018.5

Proposal of the Bandgap Design Using the Sun Height of the Culmination on the Winter Solstice Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

Generalized Numerical Design of Axially-asymmetrical and Grid- arranged Static CPV array for Maximizing Annual Energy Generation Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

Pypvcell: An Open-Source Solar Cell Modeling Library in Python Reviewed

リ　カンファ, Kenji Araki, オマル エルツチ, Nobuaki Kojima, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

Design Arithmetic of the Lateral III-V / Si Hybrid Module Reviewed

Kenji Araki, Kyotaro Nakamura*, ワン　ユ チェン, Nobuaki Kojima, Atsushi Ogura*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

CPV Technologies Not Relying on Perfection of Trackers Reviewed

Kenji Araki, Yasuyuki Ota*, リ　カンファ, Kensuke Nishioka*, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

Analyzing the Cost Reduction Potential of III-V/Si Hybrid Concentrator Photovoltaic Systems Reviewed

リ　カンファ, Kenji Araki, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

Design and Evaluation of Partial Concentration III–V/Si Module with Enhanced Diffuse Sunlight Transmission Reviewed

Daisuke Sato, Noboru Yamada*, リ　カンファ, Kenji Araki, Masafumi Yamaguchi

Proceedings of the 44th IEEE Photovoltaic Specialists Conference (PVSC44)   2018.3

Analysis of future generation solar cells and materials Reviewed

Masafumi Yamaguchi, Lin Zhu*, Hidefumi Akiyama*, Yoshihiko Kanemitsu*, Hitoshi Tampo*, Hajime Shibata**, リ　カンファ, Kenji Araki, Nobuaki Kojima

Japanese Journal of Applied Physics   57 ( 4S )   04FS03   2018.2

Electrical conduction of Si/indium tin oxide/Si junctions fabricated by surface activated bonding Reviewed

Jianbo Liang, Tomoki Ogawa, Tomoya Hara*, Kenji Araki, 神岡　武文, Naoteru Shigekawa*, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   57 ( 2S1 )   02BE03   2018.1

Analysis for efficiency potential of high‐efficiency and next‐ generation solar cells Reviewed

Masafumi Yamaguchi, リ　カンファ, Kenji Araki, Nobuaki Kojima, Hiroyuki Yamada*, Yasuhiro Katsumata**

Progress in Photovoltaics: Research and Applications   543 - 552   2017.11

Novel Epitaxial GaAs Lift-Off Approach via van der Waals Interface in In2Se3 Buffer Layer Reviewed

Nobuaki Kojima, Li Wang*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 33rd European Photovoltaic Solar Energy Conference and Exhibition   1295 - 1297   2017.11 （ ISBN:3-936338-47-7 ）

Experimental analysis and simulation of a production line for CPV modules: impact of defects, misalignments, and binning of receivers Reviewed

Rebeca Herrero, Ignacio Anton, Marta Victoria, Cesar Dominguez, Stephen Askins, Gabriel Sala, Davide De Nardis*, Kenji Araki, Masafumi Yamaguchi

Energy Science & Engineering   5 ( 5 )   241 - 317   2017.10

Outdoor validation of the 30 minutes intermittent tracking of 100 x CPV Reviewed

Kenji Araki, Yasuyuki Ota **, リ　カンファ, Kensuke Nishioka **, Masafumi Yamaguchi

AIP Conference Proceedings   1881   020002   2017.9 （ ISBN:978-0-7354-1561-4 ）

Design of the partial concentrator lens for III-V on Si static concentration Reviewed

Kenji Araki, Yasuyuki Ota **, リ　カンファ, Kensuke Nishioka **, Masafumi Yamaguchi

AIP Conference Proceedings   1881   030001   2017.9 （ ISBN:978-0-7354-1561-4 ）

Impact of the atmospheric conditions to the bandgap engineering of multi-junction cells for optimization of the annual energy yield of CPV Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

AIP Conference Proceedings   1881   070002   2017.9 （ ISBN:978-0-7354-1561-4 ）

Is it CPV? Yes, but it is a partial CPV Reviewed

Kenji Araki, Yasuyuki Ota **, リ　カンファ, Kensuke Nishioka **, Masafumi Yamaguchi

AIP Conference Proceedings   1881   080001   2017.9 （ ISBN:978-0-7354-1561-4 ）

Quantifying the potential of III-V/Si partial concentrator by a statistical approach Reviewed

リ　カンファ, Kenji Araki, Yasuyuki Ota*, Kensuke Nishioka**, Masafumi Yamaguchi

AIP Conference Proceedings   1881   080007   2017.9 （ ISBN:978-0-7354-1561-4 ）

Monte Carlo simulation to analyze the performance of CPV modules Reviewed

Rebeca Herrero*, Ignacio Anton*, Gabriel Sala*, Davide De Nardis**, Kenji Araki, Masafumi Yamaguchi

AIP Conference Proceedings   1881   090001   2017.9 （ ISBN:978-0-7354-1561-4 ）

Optical and thermal simulation for wide acceptance angle CPV module Reviewed

Nawwar Ahmad*, Yasuyuki Ota**, Kenji Araki, リ　カンファ, Masafumi Yamaguchi, Kensuke Nishioka **

AIP Conference Proceedings   1881   020001   2017.9 （ ISBN:978-0-7354-1561-4 ）

Estimation of conversion efficiency for partially static concentrator with III-V on Si solar cell Reviewed

Yasuyuki Ota **, Kenji Araki, リ　カンファ, Masafumi Yamaguchi, Kensuke Nishioka **

AIP Conference Proceedings   1881   020010   2017.9 （ ISBN:978-0-7354-1561-4 ）

Bandgaps of multi-junction solar cells potentially determined at the sun height of the culmination on the winter solstice Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

Solar Energy   153   445 - 453   2017.9

Towards Creation of Mobility Society Using Solar Energy Reviewed

Masafumi Yamaguchi, リ　カンファ, Kenji Araki, Nobuaki Kojima, Taizo Masuda*, Kazutaka Kimura*, Akinori Satou*, Hiroyuki Yamada**

Proc. 2017 the 5th IEEE International Conference on Smart Energy Grid Engineering   394 - 399   2017.8 （ ISBN:978-1-5386-1774-8 ）

Effect of substrate orientation on strain relaxation mechanisms of InGaAs layer grown on vicinal GaAs substrates measured by in situ X-ray diffraction Reviewed

鈴木秀俊 **, Takuo Sasaki **, 高橋正光 **, Yoshio Ohshita, Nobuaki Kojima, 神谷　格, 福山敦彦 **, 碇哲雄 **, Masafumi Yamaguchi

Japanese Journal of Applied Physics   56   08MA06   2017.7

N-H related defect playing the role of acceptor in GaAsN grown by chemical beam epitaxy Reviewed

オマル エルツチ, Li Wang*, リ　カンファ, Kazuma Ikeda*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Crystal Growth   468   581 - 584   2017.6

1-D and 2-D Monte Carlo simulations for analysis of CPV module characteristics including the acceptance angle impacted by assembly errors Reviewed

Kenji Araki, Hirokazu Nagai **, Rebeca Herrero*, Ignacio Anton*, Gabriel Sala**, リ　カンファ, Masafumi Yamaguchi

Solar Energy   147   448 - 454   2017.5

Static concentrator photovoltaics for automotive applications Reviewed

Taizo Masuda **, Kenji Araki, Kenichi Okumura*, Shinichi Urabe*, Yuki Kudo*, Kazutaka Kimura*, Takashi Nakado*, Akinori Sato**, Masafumi Yamaguchi

Solar Energy   146   523 - 531   2017.4

Analysis of impact to optical environment of the land by flat-plate and array of tracking PV panels Reviewed

Kenji Araki, Hirokazu Nagai*, リ　カンファ, Masafumi Yamaguchi

Solar Energy   144   278 - 285   2017.3

Why are acceptance angle of P_m and I_sc different in spite of uniform illumination onto concentrator solar cells? Reviewed

Kenji Araki, Rebeca Herrero, Ignacio Anton, Gabriel Sala, Hirokazu Nagai*, リ　カンファ, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   549 - 553   2016.11 （ ISBN:978-1-5090-2724-8 ）

Degradation mechanisms of InGaP solar cells by irradiation with less than 100 keV electrons Reviewed

Yasuki Okuno, Shuichi Okuda, Masafumi Akiyoshi, Takashi Oka, Shirou Kawakita, Mitsuru Imaizumi, Hiroaki Kusawake*, リ　カンファ, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   2596 - 2600   2016.11 （ ISBN:978-1-5090-2724-8 ）

Fabrication and performance analysis of a mechanical stack InGaP/GaAs//Si solar cell Reviewed

リ　カンファ, Kyotaro Nakamura*, 神岡　武文, Nobuaki Kojima, リ　ヒュンジュ, ワン　リー, Kenji Araki, Yoshio Ohshita, Atsuhi Ogura*, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   1957 - 1959   2016.11 （ ISBN:978-1-5090-2724-8 ）

Assessing material qualities and efficiency limits of III-V on silicon solar cells using external radiative efficiency Reviewed

リ　カンファ, Kenji Araki, ワン　リー, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   1906 - 1908   2016.11 （ ISBN:978-1-5090-2724-8 ）

Next environment-friendly cars: Application of solar power as automobile energy source Reviewed

Taizo Masuda*, Kenji Araki, Kenichi Okumura, Shinich Urabe, Yuki Kudo, Kazutaka Kimura, Takashi Nakado, Akinori Satou*, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   581 - 584   2016.11 （ ISBN:978-1-5090-2724-8 ）

Possibility of CPV for automobile energy source Reviewed

Kenji Araki, Yasuyuki Ota, Kazuma Ikeda, Kensuke Nishioka*, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   554 - 559   2016.11 （ ISBN:978-1-5090-2724-8 ）

An innovative design approach for static concentrators with large aperture area suitable to automobile application Reviewed

Kazuma Ikeda*, Kenji Araki, Yasuyuki Ota*, リ　カンファ, Kensuke Nishioka*, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   566 - 569   2016.11 （ ISBN:978-1-5090-2724-8 ）

Optimization of Static Concentrator Photovoltaics with Aspherical Lens for Automobile Reviewed

Yasuyuki Ota, Kensuke Nishioka*, Kenji Araki, Kazuma Iked*, リ　カンファ, Masafumi Yamaguchi

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   570 - 573   2016.11 （ ISBN:978-1-5090-2724-8 ）

Which is Optimum Tracker Allocation, Checkerboard or Rectangular Grid? Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

AIP Conference Proceedings   1766   070001 - 1–070001   2016.9 （ ISBN:978-0-7354-1424-2 ）

Possibility of Static Low Concentrator PV Optimized for Vehicle Installation Reviewed

Kenji Araki, Yasuyuki Ota, Kazuma IKeda*, リ　カンファ, Kensuke Nishioka*, Masafumi Yamaguchi

AIP Conference Proceedings   1766   020001 - 1–020001   2016.9 （ ISBN:978-0-7354-1424-2 ）

Intermittent Tracking (30 Minutes Interval) Using a Wide Acceptance CPV Module Reviewed

Kenji Araki, Yasuyuki Ota*, リ　カンファ, Kensuke Nishioka*, Masafumi Yamaguchi

AIP Conference Proceedings   1766   050001 - 1–050001   2016.9 （ ISBN:978-0-7354-1424-2 ）

Study on Tolerance Control for Optical Alignment of CPV Modules Using a Monte Carlo Simulation Reviewed

Kenji Araki, Hirokazu Nagai*, リ　カンファ, Masafumi Yamaguchi

AIP Conference Proceedings   1766   090003 - 1–090003   2016.9 （ ISBN:978-0-7354-1424-2 ）

Possibility of Solar Station to EV Reviewed

Kenji Araki, Hirokazu Nagai*, Masafumi Yamaguchi

AIP Conference Proceedings   1766   080001 - 1–080001   2016.9 （ ISBN:978-0-7354-1424-2 ）

Analysis of Impact to Optical Environment of the Land by CPV Reviewed

Kenji Araki, リ　カンファ, Masafumi Yamaguchi

AIP Conference Proceedings   1766   090002 - 1–090002   2016.9 （ ISBN:978-0-7354-1424-2 ）

Design and Development of Dome-Shaped Fresnel Lens Reviewed

Kenji Araki, Hirokazu Nagai*, リ　カンファ, Kazuma Ikeda*, Masafumi Yamaguchi

IEEE JOURNAL OF PHOTOVOLTAICS   6 ( 5 )   1339 - 1344   2016.9 （   ISSN:2156-3381 ）

Off-Axis Characteristics of CPV Modules Result From Lens-Cell Misalignment—Measurement and Monte Carlo Simulation Reviewed

Kenji Araki, Hirokazu Nagai, Rebeca Herrero, Ignacio Anton, Gabriel Sala*, Masafumi Yamaguchi

IEEE JOURNAL OF PHOTOVOLTAICS   6 ( 5 )   1353 - 1359   2016.9 （   ISSN:2156-3381 ）

Optimization of Land Use for a Multitracker System Using a Given Geometrical Site Condition Reviewed

Kenji Araki, Hirokazu Nagai, Kazuma Ikeda*, リ　カンファ, Masafumi Yamaguchi

IEEE JOURNAL OF PHOTOVOLTAICS   6 ( 4 )   960 - 966   2016.7 （   ISSN:2156-3381 ）

Assessing material qualities and efficiency limits of III–V on silicon solar cells using external radiative efficiency Reviewed

リ　カンファ, Kenji Araki, ワン　リー, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Progress in Photovoltaics: Research and Applications   24   1310 - 1318   2016.6

Assessing Material Qualities and Efficiency Limits of III-V on Silicon Solar Cells Using External Radiative Efficiency Reviewed

リ　カンファ, Kenji Araki*, ワン　リー, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Submitted for journal review. Preprint: arXiv.org   arXiv:1512.02056   2016.3

Inhomogeneous nitrogen incorporation effects on the transport properties of GaAsN grown by CBE Reviewed

ワン　リー, Omar Elleuch semiconductor*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Crystal Growth   437   6 - 9   2016.1

Potential and Activities of III-V/Si Tandem Solar Cells Reviewed

Masafumi Yamaguchi, リ　カンファ, Kenji Araki, Nobuaki Kojima, Yoshio Ohshita

ECS Journal of Solid State Science and Technology   5 ( 2 )   Q68 - Q73   2015.12

NGCPV: A New Generation of Concentrator Photovoltaic Cells, Modules and Systems (A Final Review) Reviewed

A. Datas, A.B. Cristóbal, G. Sala, I. Antón, J.C. Miñano, P. Benitez, C. Algora, A.W. Bett, D. Lackner, M. Niemeyer, S.P. Philipps, G. Siefer, N. J. Ekins-Daukes, F. Roca, C. Cancro, I.Luque-Heredia, W. Warmuth, M. Baudrit, Y. Okada, M. Sugiyama, Y. Hishikawa, T. Takamoto*, Kenji Araki, A. Fukuyama, K. Nishioka, H. Suzuki, N. Kuze, Y. Moriyasu, T. Kita, A. Kotagiri*, Nobuaki Kojima, A. Martí*, Masafumi Yamaguchi, A. Luque*

Proc. 31st European Photovoltaic Solar Energy Conference and Exhibition   1384 - 1391   2015.11

Recent Progress of PV R&D Projects in Japan Reviewed

Masafumi Yamaguchi, Hiroyuki Yamada*, Yasuhiro katsumata*

Proc. 31st European Photovoltaic Solar Energy Conference and Exhibition   3194 - 3197   2015.11

Prospect of InGaAsN Solar Cells Grown by Chemical Beam Epitaxy for High-Efficiency Multi-Junction Solar Cells Reviewed

リ　カンファ, Omar Elleuch*, Kazuma Ikeda*, ワン　リー, Koshiro Demizu*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 42th IEEE Photovoltaic Specialists Conference (PVSC42)   2015.10

Summary of Europe-Japan Collaborative Research on Concentrator Photovoltaics Reviewed

Masafumi Yamaguchi, Antonio Luque*

Proc. 42th IEEE Photovoltaic Specialists Conference (PVSC42)   2015.10

Effects of Arsenic Source Molecule on N-H related Defects Formation in GaAsN Grown by Chemical Beam Epitaxy Reviewed

Yoshio Ohshita, Koshiro Demizu*, Omar Elleuch*, Kazuma Ikeda*, Nobuaki Kojima, Hideaki Machida, Hiroshi Sudoh*, Masafumi Yamaguchi

Proc. 42th IEEE Photovoltaic Specialists Conference (PVSC42)   2015.10

Structure of the Acceptor Defects in P-type GaAsN Grown by Chemical Beam Epitaxy Reviewed

Omar Elleuch*, ワン　リー, リ　カンファ, Koshiro Demizu*, Kazuma Ikeda*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 42th IEEE Photovoltaic Specialists Conference (PVSC42)   2015.10

Suppression of Twin Formation in Layered In₂Se₃ Grown on GaAs(111) Reviewed

Nobuaki Kojima, Hiroya Nakamura*, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 42th IEEE Photovoltaic Specialists Conference (PVSC42)   2015.10

Double acceptor in p-type GaAsN grown by chemical beam epitaxy Reviewed

Omar Elleuch*, ワン　リー, リ　カンファ, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Crystal Growth   432   45 - 48   2015.9

Annealing effects on recombinative activity of nickel at direct silicon bonded interface Reviewed

Takuto Kojima*, Yoshio Ohshita, Masafumi Yamaguchi

AIP Advances   5 ( 9 )   097140   2015.9

Identification of N‒H related acceptor defects in GaAsN grown by chemical beam epitaxy using hydrogen isotopes Reviewed

Omar Elleuchi*, ワン　リー, リ　カンファ, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Alloys and Compounds   649   815 - 818   2015.7

Origin of recombination activity at small angle grain boundaries in multicrystalline silicon using multi-seed casting growth method Reviewed

Takuto Kojima*, Tomihisa Tachibana*, Yoshio Ohshita, Ronit R. Prakash*, Takashi Sekiguchi*, Masafumi Yamaguchi

Japanese Journal of Applied Physics   54   08KD16   2015.7

Fundamentals and R&D status of III-V compound solar cells and materials Reviewed

Masafumi Yamaguchi

physica status solidi (c)   12 ( 6 )   489 - 499   2015.4

Fundamentals and R&D status of III-V compound solar cells and materials Reviewed

Masafumi Yamaguchi

Physica Status Solidi C   12 ( 6 )   489 - 499   2015.4

Effects of source gas molecules on N–H- and N–D-related defect formations in GaAsN grown by chemical beam epitaxy Reviewed

池田　和磨, Yoshio Ohshita, Tomohiro Tanaka*, Takahiko Honda*, Makoto Inagaki*, Koshiro Demizu*, Nobuaki Kojima, Hidetoshi Suzuki*, Hideaki Machida,Hiroshi Sudoh*, Masafumi Yamaguchi

Japanese Journal of Applied Physics   54 ( 4 )   041001   2015.3

Hole traps associated with high-concentration residual carriers in p-type GaAsN grown by chemical beam epitaxy Reviewed

Omar Elleuch*, ワン　リー, リ　カンファ, Koshiro Demizu*, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Applied Physics   117   045712   2015.1

Overview of PV R&D Project in Japan Reviewed

Masafumi Yamaguchi, H. Yamada*, Y. Fujioka*

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   3961 - 3964   2014.11

Overview of Loss Mechansims for Super High-Efficiency Multijunction Solar Cells Reviewed

Masafumi Yamaguchi, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Tatsuya Takamoto*

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   2050 - 2053   2014.11

Growth of (In_XGa_1-X)₂Se₃ Buffer Material for Spalling a III-V Overlayer via Van Der Waals Interface Reviewed

Nobuaki Kojima, Hiroya Nakamura*,Yoshio Ohshita, Masafumi Yamaguchi

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   2063 - 2065   2014.11

Analysis of the main acceptor defect in p-type GaAsN grown by chemical beam epitaxy Reviewed

Omar Elleuch*, Boussairi Bouzazi*, Hiroyuki Kowaki*, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   53 ( 9 )   091201   2014.8

Correlations between N–H local vibrational modes in GaAsN grown by chemical beam epitaxy Reviewed

池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   53 ( 7 )   071001   2014.6 （   ISSN:1347-4065 ）

Wagging and stretching modes of N–H complexes in GaAsN grown by chemical beam epitaxy Reviewed

Koshiro Demizu*, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   53   05FV02   2014.4 （   ISSN:1347-4065 ）

Nickel distribution and recombination activity in as-grown and annealed multicrystalline silicon Reviewed

Takuto Kojima*, 立花　福久, Nobuaki Kojima, Yoshio Ohshita, Koji Arafune*, Atsushi Ogura*, Masafumi Yamaguchi

Japanese Journal of Applied Physics   53 ( 4S )   04ER20   2014.3 （   ISSN:1347-4065 ）

Effect of surface morphology on the density of energy states in GaAsN grown by chemical beam epitaxy Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   53 ( 4 )   04ER08   2014.2

N–H related defects in GaAsN grown through chemical beam epitaxy Reviewed

Yoshio Ohshita, 池田　和磨, Hidetoshi Suzuki*, Hideaki Machida*, Hiroshi Sudoh*, Tomohiro Tanaka*, Takahiko Honda*, Makoto Inagaki*, Masafumi Yamaguchi

Japanese Journal of Applied Physics   53 ( 3 )   031001   2014.2

Importance of Photovoltaics Learned from the Fukushima Nuclear Power Plant Accident in Japan Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, Koji Arafune*

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   4623 - 4628   2013.12

NGCPV: A New Generation of Concentrator Photovoltaic Cells, Modules and Systems Reviewed

A.Datas , A.B. Cristóbal , G. Sala , I. Antón, J.C. Miñano, P. Benitez*, A.W. Bett, G.Siefer, N. J. Ekins-Daukes*, F.Roca, C. Cancro, I.Luque-Heredia, W. Warmuth, M. Baudrit*, Y. Okada, M. Sugiyama, Y. Hishikawa*, T.Takamoto, K. Araki, A. Fukuyama, K. Nishioka, H. Suzuki*, N. Kuze, Y. Moriyasu, T. Kita, A. Kotagiri*, Nobuaki Kojima, A.Martí*, Masafumi Yamaguchi, A. Luque*

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   88 - 93   2013.12

Preferential N-H bond direction in GaAsN grown by chemical beam epitaxy Reviewed

池田　和磨, Makoto Inagaki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

physica status solidi   10 ( 11 )   1513 - 1516   2013.10

Effect of arsenic source flow rate on the lattice defects in GaAsN grown by chemical beam epitaxy Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

physica status solidi   10 ( 11 )   1477 - 1480   2013.9 （   ISSN:1862-6270 ）

Ga₂Se₃ and (InGa)₂Se₃ as novel buffer layers in the GaAs on Si system Reviewed

Nobuaki Kojima, Crisóforo Morales*, Yoshio Ohshita, Masafumi Yamaguchi

AIP Conference Proceedings   1556   38 - 40   2013.9

Analysis of defects in GaAsN grown by chemical beam epitaxy on high index GaAs substrates Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

AIP Conference Proceedings   1556   30 - 33   2013.9 （ ISBN:978-0-7354-1182-1 ）

Optical DLTS for the study of recombination centers in GaAsN grown by chemical beam epitaxy Reviewed

Hiroyuki Kowaki*, Kan-Hua Lee*, Takuto Kojima*, Makoto Inagaki*, 池田　和磨, ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi, N.J. Ekins-Daukes*

AIP Conference Proceedings   1556   41 - 44   2013.9 （ ISBN:978-0-7354-1182-1 ）

Real-time observation of crystallographic tilting InGaAs layers on GaAs offcut Substrates Reviewed

Toshiaki Nishi*, Takuo Sasaki*, 池田　和磨, Hidetoshi Suzuki*, Masamitu Takahasi*, Kenichi Shimomura*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

AIP Conference Proceedings   1556   14 - 17   2013.9 （ ISBN:978-0-7354-1182-1 ）

Effect of electron and proton irradiation on recombination centers in GaAsN grown by chemical beam epitaxy Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Current Applied Physics   13 ( 7 )   1269 - 1274   2013.9

III-V-N Materials for Super High Efficiency Multi-junction Solar Cells Reviewed

池田　和磨, Masafumi Yamaguchi, ブザイリ ブザジ, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita

Japanese Journal of Applied Physics   52 ( 8 )   08JH11   2013.7

Analysis of Current Transport Mechanisms in GaAsN Homojunction Solar Cell Grown by Chemical Beam Epitaxy Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

IEEE JOURNAL OF PHOTOVOLTAICS   3 ( 2 )   909 - 915   2013.4 （   ISSN:2156-3381 ）

Capacitance-voltage and current-voltage characteristics for the study of high background doping and conduction mechanisms in GaAsN grown by chemical beam epitaxy Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Alloys and Compounds   552   469 - 474   2013.3 （   ISSN:0925-8388 ）

High electron mobility in Ga(In)NAs films grown by molecular beam epitaxy Reviewed

Naoya Miyashita*, Nazmul Ahsan*, Makoto Inagaki*, Muhammad Monirul Islam*, Masafumi Yamaguchi, Yoshitaka Okada*

Applied Physics Letters   101 ( 22 )   222112   2012.11

Improving Crystallinity of Thin Si Film for Low-Energy-Loss Micro-/Nano-Electromechanical Systems Devices by Metal-Induced Lateral Crystallization Using Biomineralized Ni Nanoparticles Reviewed

Shinya Kumagai , Hiromu Murase*, Syusuke Miyachi*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi, Ichiro Yamashita*, Yukiharu Uraoka*, Minoru Sasaki

Japanese Journal of Applied Physics   51 ( 11 )   11PA03   2012.11 （   ISSN:1347-4065 ）

NGCPV: A NEW GENERATION OF CONCENTRATOR PHOTOVOLTAIC CELLS, MODULES AND SYSTEMS Reviewed

A.B. Cristóbal, A. Martí, G. Sala*, A. Bett, N. J. Ekins-Daukes*, F. Roca, I. Luque-Heredia*, W. Warmuth, J. Merten*, Y. Okada, Y. Hishikawa*, T. Takamoto, K. Araki*, A. Fukuyama, N. Kuze*, T. Kita, A. Kotagiri*, Masafumi Yamaguchi, A. Luque*

Proc. 27th European Photovoltaic Solar Energy Conference and Exhibition   244 - 248   2012.11 （ ISBN:3-936338-28-0 ）

TOWARD FURTHER DEVELOPMENT OF PHOTOVOLTAICS TO OVERCOME CURRENT PROBLEMS OCCUURED BYNUCLEAR POWER PLANTS IN JAPAN Reviewed

Masafumi Yamaguchi, Yoshio Ohshita

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   3298 - 3301   2012.10 （ ISBN:978-1-4244-9964-9   ISSN: 0160-8371 ）

NITROGEN-RELATED DEFECTS AND THEIR EFFECT ON THE ELECTRICAL PROPERTIES OF GaAsN GROWN BY CHEMICAL BEAM EPITAXY Reviewed

ブザイリ ブザジ, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   454 - 458   2012.10

LOWERING SYMMETRY AROUND N-CLUSTER BY BREAKING Ga-N BOND IN GaAsN Reviewed

池田　和磨, Makoto Inagaki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   489 - 492   2012.10 （ ISBN:978-1-4244-9964-9   ISSN: 0160-8371 ）

EFFECT OF N-INDUCED SCATTERING CENTERS ON ELECTRON MOBILITY IN CBE GROWN GaAsN FILMS Reviewed

Makoto Inagaki*, Shunsuke Kimura*, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   493 - 495   2012.10 （ ISBN:978-1-4244-9964-9   ISSN: 0160-8371 ）

IDENTIFICATION OF HYDROGEN INCORPORATION INTO GaAsN BY GROWTH WITH DEUTERATED PRECURSORS Reviewed

Suguru Wada*, Tomohiro Tanaka*, Makoto Inagaki*, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   560 - 563   2012.10 （ ISBN:978-1-4244-9964-9   ISSN: 0160-8371 ）

POLYMER FORMATION IN CONDUCTIVE Mg-DOPED C₆₀ FILMS Reviewed

Nobuaki Kojima, Seiji Nishi*, クリソフォロ　モラーレス, Masafumi Yamaguchi

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   723 - 725   2012.10 （ ISBN:978-1-4244-9964-9   ISSN: 0160-8371 ）

MODELLING OF QUANTUM DOT SOLAR CELLS FOR CONCENTRATOR PV APPLICATIONS Reviewed

A. Ogura*, T. Morioka*, P. García-Linares*, E. Hernández*, I. Ramiro*, I. Artacho*, E. Antolín*, A. Martí, A. Luque*, Masafumi Yamaguchi, Y. Okada*

Proc. 37th IEEE Photovoltaic Specialists Conference (PVSC37)   2642 - 2645   2012.10

Nitrogen Related Deep Levels in GaAsN Films Investigated by a Temperature Dependence of Piezoelectric Photothermal Signal Reviewed

Koshiro Kashima*, Atsuhiko Fukuyama*, Yosuke Nakano*, Makoto Inagaki*, Hidetoshi Suzuki*, Masafumi Yamaguchi, Tetsuo Ikari*

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   93 - 96   2012.7 （ ISBN:978-3-03785-442-6   ISSN:0255-5476 ）

Distribution of Misfit Dislocations at the InGaAs/GaAs(001) Interface Observed by Monochromatic X-Ray Topography Reviewed

Hidetoshi Suzuki*, Takuo Sasaki, Susumu Yamamoto*, Yoshio Ohshita, Atsuhiko Fukuyama*, Masafumi Yamaguchi

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   85 - 88   2012.7 （ ISBN:978-3-03785-442-6   ISSN:0255-5476 ）

Effects of in Content on Anisotropies in Strain Relaxation Processes of InGaAs/GaAs (001) Measured by Real-Time Three-Dimensional Reciprocal Space Mapping Reviewed

Hidetoshi Suzuki*, Takuo Sasaki, Masamitu Takahasi*, Yoshio Ohshita, Masafumi Yamaguchi

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   89 - 92   2012.7 （ ISBN:978-3-03785-442-6   ISSN:0255-5476 ）

Structural and Molecular Changes of C₆₀ Thin Films with Incorporated Magnesium Atoms Reviewed

クリソフォロ　モラーレス, Nobuaki Kojima, Seiji Nishi*, Masafumi Yamaguchi

Japanese Journal of Applied Physics   51 ( 4 )   04DK08   2012.4

Japanese R&D Activities of High Efficiency III-V Compound Multi-Junction and Concentrator Solar Cells Reviewed

Masafumi Yamaguchi

Energy Procedia   15   265 - 274   2012.4

Observation of In-Plane Asymmetric Strain Relaxation during Crystal Growth and Growth Interruption in InGaAs/GaAs(001) Reviewed

Takuo Sasaki, Kenichi Shimomura*, Hidetoshi Suzuki*, Masamitu Takahasi*, 神谷　格, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   51 ( 2 )   02BP01   2012.2

Effect of Thermal Stress on a N-Related Recombination Center in GaAsN Grown by Chemical Beam Epitaxy Reviewed

ブザイリ ブザジ, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   51 ( 2 )   02BP02   2012.2

Growth orientation dependent photoluminescence of GaAsN alloys Reviewed

ハン　シュウシュン, Tomohiro Tanaka*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi, Shinichiro Sato*

Applied Physics Letters   100 ( 3 )   032108   2012.1

Real-Time Structural Analysis of Compositionally Graded InGaAs/GaAs(001) Layers Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Makoto Inagaki*, 池田　和磨, Kenichi Shimomura*, Masamitu Takahasi*, Miwa Kozu, Wen Hu*, 神谷　格, Yoshio Ohshita, Masafumi Yamaguchi

IEEE Journal of Photovoltaics   2 ( 1 )   35 - 40   2012.1 （   ISSN:2156-3381 ）

X-ray reciprocal space mapping of dislocation-mediated strain relaxation during InGaAs/GaAs(001) epitaxial growth Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Masamitu Takahashi*, Yoshio Ohshita, 神谷　格, Masafumi Yamaguchi

Journal of Applied Physics   110 ( 11 )   113502   2011.12

EFFECTS OF Ni AND Cu ON RECOMBINATION ACTIVITY OF (110)/ (100) DSB INTERFACE Reviewed

Takuto Kojima*, Mari Aoki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition   1489 - 1491   2011.10 （ ISBN:3-936338-27-2 ）

DEFECT ANALYSIS OF III-V-N MATERIALS FOR SUPER HIGH-EFFICIENCY MULTIJUNCTION SOLAR CELLS Reviewed

Masafumi Yamaguchi, ブザイリ ブザジ, Hidetoshi Suzuki*, Yoshio Ohshita, Nobuaki Kojima, Tatsuya Takamoto*

Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition   54 - 57   2011.10 （ ISBN:3-936338-27-2 ）

PHOTOLUMINESCENCE STUDY OF ELECTRON-IRRADIATED GaAsN LAYERS ON (311)A/B GaAs SUBSTRATES Reviewed

ハン　シュウシュン, Tomohiro Tanaka*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi, Shinichiro Sato*

Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition   93 - 96   2011.10 （ ISBN:3-936338-27-2 ）

Effect of Low Growth Rate in Chemical Beam Epitaxy on Carrier Mobility and Lifetime of p-GaAsN Films Reviewed

Takahiko Honda*, 池田　和磨, Makoto Inagaki*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   50 ( 8 )   08KD06   2011.8 （   ISSN:1347-4065 ）

Numerical Analysis for Radiation Resistant InGaP Solar Cell Reviewed

Dalia Elfiky*, Masafumi Yamaguchi, Takuo Sasaki, Mohamed Elnawawy*, Tarek Eldesouky*, Ahmed Ghitas*

Japanese Journal of Applied Physics   50 ( 7 )   072301   2011.7 （   ISSN:1347-4065 ）

Origin Investigation of a Nitrogen-Related Recombination Center in GaAsN Grown by Chemical Beam Epitaxy Reviewed

ブザイリ ブザジ, Jong-Han Lee*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   50 ( 1 )   051001   2011.5

Growth temperature dependence of strain relaxation during InGaAs/GaAs(001) heteroepitaxy Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Akihisa Sai*, Masamitu Takahasi*, Seiji Fujikawa*, 神谷　格, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Crystal Growth   323 ( 1 )   13 - 16   2011.5 （   ISSN:0022-0248 ）

Shallow Carrier Trap Levels in GaAsN Investigated by Photoluminescence Reviewed

Makoto Inagaki*, Hidetoshi Suzuki*, Kazumasa Mutaguchi*, Atsuhiko Fukuyama*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   50 ( 4 )   04DP14   2011.4 （   ISSN:1347-4065 ）

Novel material for super high efficiency multi-junction solar cells Reviewed

Yoshio Ohshita, Hidetoshi Suzuki*, Nobuaki Kojima, Tomohiro Tanaka*, Takahiko Honda*, Makoto Inagaki*, Masafumi Yamaguchi

Journal of Crystal Growth   318 ( 1 )   328 - 331   2011.3

Relationship between a nitrogen-related hole trap and ionized acceptors density in p-type GaAsN grown by chemical beam epitaxy Reviewed

Boussairi Bouzazi*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Physica Status Solidi C   8 ( 2 )   616 - 618   2011.2 （   ISSN:1610-1642 ）

N incorporation and optical properties of GaAsN epilayers on (311)A/B GaAs substrates Reviewed

ハン　シュウシュン, Hidetoshi Suzuki*, ジョンハン　リー, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Physics D: Applied Physics   44 ( 1 )   015402   2011.1 （   ISSN:0022-3727 ）

A recombination center in p-type GaAsN grown by chemical beam epitaxy Reviewed

Boussairi Bouzazi*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Solar Energy Materials & Solar Cells   95 ( 1 )   281 - 283   2011.1

Growth Temperature Dependence of Structure in Mg-doped C₆₀ Films Reviewed

Seiji Nishi*, Masato Natori*, Nobuaki Kojima, クリソフォロ　モラーレス, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   001653 - 001656   2010.12

Properties of a Nitrogen-Related Hole Trap Acceptor-Like State in p-Type GaAsN Grown by Chemical Beam Epitaxy Reviewed

Boussairi Bouzazi*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   49 ( 12 )   121001   2010.12

Effect of Base Doping Concentration on Radiation-Resistance for GaAs Sub-Cells in InGaP/GaAs/Ge Reviewed

Dalia Elfiky*, Masafumi Yamaguchi, Takuo Sasaki, Tatsuya Takamoto*, Chiharu Morioka*, Mitsuru Imaizumi*, Takeshi Ohshima*, Shin-ichiro Sato*, Mohamed Elnawawy*, Tarek Eldesoky、Ahmed Ghitas*

Japanese Journal of Applied Physics   49 ( 12 )   121202   2010.12

Theoretical Optimization of Base Doping Concentration for Radiation Resistance of InGaP Subcells of InGaP/GaAs/Ge Based on Minority-Carrier Lifetime Reviewed

Dalia Elfiky*, Masafumi Yamaguchi, Takuo Sasaki, Tatsuya Takamoto*, Chiharu Morioka*, Mitsuru Imaizumi*, Takeshi Ohshima*, Shin-ichiro Sato*, Mohamed Elnawawy*, Tarek Eldesoky、Ahmed Ghitas*

Japanese Journal of Applied Physics   49 ( 12 )   121201   2010.12

In-situ 3D X-ray Reciprocal Space Mapping During Lattice-mismatched InGaAs/GaAs Growth Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Akihisa Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   000695 - 000698   2010.12 （ ISBN:978-1-4244-5891-2 ）

Recent R&D Topics on Concentrator Mutli-junction Solar Cells and Materials Under Innovative Solar Cells’ R&D Project Reviewed

Masafumi Yamaguchi, Hidetoshi Suzuki*, Yoshio Ohshita, Nobuaki Kojima, Tatsuya Takamoto*

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   001237 - 001242   2010.12

Electrical Properties and Boundary Structures in Cast-Grown Polycrystalline Silicon Reviewed

Takuto Kojima*, Yoshio Ohshita, Tomihisa Tachibana*, Atsushi Ogura*, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   001419 - 001422   2010.12

Electrical Conduction Properties of Mg-doped C₆₀ Films Reviewed

Nobuaki Kojima, Masato Natori*, クリソフォロ　モラーレス, Seiji Nishi*, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   001650 - 001652   2010.12

Effect of Doping with Magnesium on Structural, Optical and Electrical Properties of Epitaxial-Grown Mg-Doped C60 Thin Films Reviewed

クリソフォロ　モラーレス, Nobuaki Kojima, Masato Natori*, Naoki Ogata*, Seiji Nishi*, Masafumi Yamaguchi

Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion   781 - 783   2010.12

Enhanced N Incorporation and Improved Optical Properties in GaAsN Epilayers by using High-Index GaAs Substrates Reviewed

ハン　シュウシュン, Hidetoshi Suzuki*, ジョンハン　リー, Makoto Inagaki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002050 - 002052   2010.12 （ ISBN:978-1-4244-5891-2 ）

Improvement of Minority Carrier Lifetime in GaAsN Grown by Chemical Beam Epitaxy Reviewed

Takahiko Honda*, Makoto Inagaki*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002053 - 002056   2010.12

Origin of Near-Band-Edge Luminescence of GaAsN Reviewed

Makoto Inagaki*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002062 - 002065   2010.12

Low Temperature Growth GaAs on Ge by Chemical Beam Epitaxy Reviewed

ジョンハン　リー, Hidetoshi Suzuki*, ハン　シュウシュン, Makoto Inagaki*, 池田　和磨, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002070 - 002073   2010.12

Study of GaAsN Thin Film Structures by X-ray Reciprocal Space Mapping for Multi-Junction Solar Cell Application Reviewed

Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002117 - 002119   2010.12

Identification of N-H Related Defects in GaAsN Grown by Chemical Beam Epitaxy Reviewed

Tomohiro Tanaka*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002120 - 002124   2010.12

Study the Effects of Proton Irradiation on GaAs/Ge Solar Cells Reviewed

Dalia Elfiky*, Masafumi Yamaguchi, Takuo Sasaki, Tatsuya Takamoto*, Chiharu Morioka*, Mitsuru Imaizumi*, Takeshi Ohshima*, Shin-ichiro Sato*, Mohamed Elnawawy*, Tarek Eldesuky*

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002528 - 002532   2010.12

Thermal Annealing Study of Radiation Induced Defects in Nitride-Based Multi-Junction Solar Cell Structures Reviewed

A.Khan*, D.A.Rahman*, S.Alsharif*, J.Gou*, A.Gapud*, Takuo Sasaki, M.Imaizumi*, Masafumi Yamaguchi

Proceedings of the 35th IEEE Photovoltaic Specialists Conference (PVSC35)   002560 - 002562   2010.12

Removal of a Possible Split Interstitial (N-As)As Recombination Center in GaAsN Grown by Chemical Beam Epitaxy Using Proton Implantation Reviewed

Boussairi Bouzazi*, ジョンハン　リー, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion   69 - 72   2010.12

Atmospheric Considerations when Estimating the Energy Yield from III-V Photovoltaic Solar Concentrator Systems Reviewed

T.B.Young*, A.Chan*, N.J.Ekins-Daukes*, K.Araki*, Y.Kemmoku*, Masafumi Yamaguchi

Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion   106 - 109   2010.12

Recent R&D Topics on Concentrator Multi-Junction Solar Cells and Materials under Japanese Innovative Photovoltaic R&D Program since FY2008 Reviewed

Masafumi Yamaguchi, Hidetoshi Suzuki*, Yoshio Ohshita, Nobuaki Kojima, Takamoto Tatsuya*

Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion   163 - 166   2010.12

Structural Analysis of GaAsN Thin Films Grown By Chemical Beam Epitaxy Using X-Ray Reciprocal Space Map Reviewed

Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of International Symposium on Dry Process（DPS2010)   39 - 40   2010.11

Improvement of Minority-Carrier Lifetime in GaAsN Grown by Chemical Beam Epitaxy Reviewed

Takahiko Honda*, Makoto Inagaki*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of International Symposium on Dry Process(DPS2010)   37 - 38   2010.11

Real-time observation of anisotropic strain relaxation by three-dimensional reciprocal space mapping during InGaAs/GaAs (001) growth Reviewed

Hidetoshi Suzuki*, Takuo Sasaki, Akihisa Sai*, Yoshio Ohshita, 神谷　格, Masafumi Yamaguchi, Masamitsu Takahashi*, Seiji Fujikawa*

Applied Physics Letters   97 ( 4 )   041906   2010.7

Electrical and Structural Characterization of Epitaxial-Grown Mg-Doped C₆₀ Thin Films Reviewed

Nobuaki Kojima, Masato Natori*, Masafumi Yamaguchi

ECS Transactions   25 ( 22 )   7 - 11   2010.6 （   ISSN:1938-5862 ）

In situ Study of Strain Relaxation Mechanisms During Lattice-mismatched InGaAs/GaAs Growth by X-ray Reciprocal Space Mapping Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Akihisa Sai*, Masamitsu Takahashi*, Seiji Fujikawa*, Yoshio Ohshita, Masafumi Yamaguchi

MRS Symposium Proceedings Defects in Inorganic Photovoltaic Materials   1268   45 - 50   2010.6

Relation between N–H complexes and electrical properties of GaAsN determined by H implantation Reviewed

Jong-Han Lee*, Hidetoshi Suzuki*, Xiuxun Han*, Takahiko Honda*, Tomohiro Tanaka*, Jong-Ha Hwang*, Boussairi Bouzazi、Makoto Inagaki*, Nobuaki Kojima,Yoshio Ohshita, Masafumi Yamaguchi

Current Applied Physics   10 ( 3 )   431 - 434   2010.5

Relation between N-H complexes and electrical properties of GaAsN determined by H implantation Reviewed

ジョンハン　リー, Hidetoshi Suzuki*, ハン　シュウシュン, Takahiko Honda*, Tomohiro Tanaka*, Jong-Ha Hwang*, Boussairi Bouzazi、Makoto Inagaki*, Nobuaki Kojima,Yoshio Ohshita, Masafumi Yamaguchi

Current Applied Physics   10 ( 3 )   431 - 434   2010.5 （   ISSN:1567-1739 ）

Nitrogen-Related Recombination Center in GaAsN Grown by Chemical Beam Epitaxy Reviewed

Boussairi Bouzazi*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics   49 ( 5 )   051001   2010.5

Nitrogen Related Electron Trap with High Capture Cross Section in n-Type GaAsNGrown by Chemical Beam Epitaxy Reviewed

Boussairi Bouzazi*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Applied Physics Express   3 ( 5 )   051002   2010.4

Improvements in Optoelectrical Properties of GaAsN by Controlling Step Density during Chemical Beam Epitaxy Growth Reviewed

Hidetoshi Suzuki*, Makoto Inagaki*, Takahiko Honda*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Japanese Journal of Applied Physics   49 ( 4 )   04DP08   2010.4

Properties of Chemical Beam Epitaxy grown GaAs0.995N0.005 homo-junction solar cell Reviewed

Boussairi Bouzazi 博士2*, Kenichi Nishimura 2007 博士満了*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Current Applied Physics.   10   S188 - S190   2010

Flow modulation effect on N incorporation into GaAs(1−x)Nx films during chemical beam epitaxy growth Reviewed

H. Suzuki*, K.Nishimura 2007博士満了*, K.Saito 2008修士修了*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Journal of Crystal Growth   311 ( 10 )   2821 - 2824   2009.5

Crystal Structures of Copper–Phthalocyanine on C₆₀(111) Surface Grown by Molecular Beam Epitaxy Reviewed

Hidetoshi Suzuki*, Yusuke Yamashita 2004修士修了*, Nobuaki Kojima, Masafumi Yamaguchi

Japanese Journal of Applied Physics   48 ( 8 )   6879 - 6882   2009

Effects of Residual Carbon and Hydrogen Atoms on Electrical Property of GaAsN Films Grown by Chemical Beam Epitaxy Reviewed

Hidetoshi Suzuki*, Kenichi Nishimura 2008博士満了*, Kenji Saito 修士2*, Taiki Hashiguchi 修士2*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Japanese Journal of Applied Physics   47 ( 8 )   6910 - 6913   2009

Studies on Concentrator Multi-Junction Solar Cells and Materials in the Japanese Innovative PV R&D Program Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, Nobuaki Kojima, Hidetoshi Suzuki*, Boussairi Bouzazi 博士2*, Tatsuya Takamoto 1998 博士修了*, Yoshita Okada 東京大学*

Proceedings24th European Photovoltaic Solar Energy Conference   218 - 221   2009

Structural characterization of Mg-doped C₆₀ thin films Reviewed

Nobuaki Kojima, M. Natori 修士2*, H. Suzuki*, Masafumi Yamaguchi

Journal of Physics: Conference Series   159   12018   2009

Growth and characterization of n-type polycrystalline silicon ingots Reviewed

Koji Arafune 兵庫県立大学*, Mami Nohara 2007卒業*, Yoshio Ohshita, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   93 ( 6-7 )   1047 - 1050   2009

Characterization of carrier recombination in lattice-mismatched InGaAs solar cells on GaAs substrates Reviewed

Takuo Sasaki, K. Arafune 兵庫県立大学*, W. Metzger NREL*, M.J. Romero NREL*, K. Jones NREL*, M. Al-Jassim NREL*, Yoshio Ohshita, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   93 ( 6-7 )   936 - 940   2009

In situ Real-Time X-ray Reciprocal Space Mapping during InGaAs/GaAs Growthfor Understanding Strain Relaxation Mechanisms Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Akihisa Sai 修士２*, ジョンハン　リー, Masamitu Takahasi JAEA*, Seiji Fujikawa JAEA*, Koji Arafune 兵庫県立大学*, 神谷　格, Yoshio Ohshita, Masafumi Yamaguchi

Applied Physics Express   2 ( 8 )   085501   2009

Novel materials for high-efficiency solar cells Reviewed

Nobuaki Kojima, Masato Natori 修士2*, Hidetoshi Suzuki*, Makoto Inagaki 修士2*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Photonics and Optoelectronics Meetings (POEM)   7518   75180P - 1   2009

Studies on Concentrator Multi-Junction Solar Cells and Materials in the Japanese Innovative PV R&D Program Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, Nobuaki Kojima, Hidetoshi Suzuki*, Boussairi Bouzazi 博士2*, Tatsuya Takamoto 1998博士修了シャープ*, Yoshita Okada 東京大学*

Proceedings 24th European Photovoltaic Solar Energy Conference,   218 - 221   2009

A High Capture Cross Section's Recombination Center in p-Type GaAsN Grown by Chemical Beam Epitaxy Reviewed

Boussairi Bouzazi 博士2*, Hidetoshi Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 24th European Photovoltaic Solar Energy Conference   68 - 71   2009

ＣＯＮＤＵＣＴＩＶＩＴＹ　ＩＭＰＲＯＶＥＭＥＮＴ　ＯＦ　ＥＰＩＴＡＸＩＡＬ-ＧＲＯＷＮ　Ｍｇ-ＤＯＰＥＤ　Ｃ60　ＴＨＩＮ　ＦＩＬＭＳ Reviewed

Nobuaki Kojima, Ｍaｓａｔｏ Ｎａｔｏｒｉ 修士 2*, Hidetoshi Suzuki*, Masafumi Yamaguchi

Proceedings34th IEEE Photovoltaic Specialists Confernece   000725 - 000728   2009

HOLE MOBILITY OF GaAs1-XNX GROWN BY CHEMICAL BEAM EPITAXY Reviewed

Hidetoshi Suzuki*, Taiki Hashiguchi 2008　修士修了*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings34th IEEE Photovoltaic Specialists Confernece   000848 - 000851   2009

Electrical Field Dependence Of Emission Rate Of Deep Levels In In-Asxp1-X/Inp Multiquantum Well Solar Cell Structure Asxp1-X/Inp Multiquantum Well Solar Cell Structure Reviewed

A. Khan University of South Alabama*, A. Freundlich University of Houston*, J.Gou University of Central Florida*, S. Alsharif University of South Alabama*, A. Gapud University of South Alabama*, M.Imaizumi 1999 博士修了*, Masafumi Yamaguchi

Proceedings34th IEEE Photovoltaic Specialists Confernece   002043 - 002045   2009

REAL-TIME　STUDY　OF　STRAIN　RELAXATION　IN　LATTICE-MISMATCHED　INGAAS/GAAS　BY　X-RAY　DIFFRACTION Reviewed

Takuo Sasaki, Hidetoshi Suzuki*, Akishia Sai 修士2*, ジョンハン　リー, Masamitu Takahasi LAEA*, Seiji Fujikawa JAEA*, Koji Arafune 兵庫県立大学*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings34th IEEE Photovoltaic Specialists Confernece   000999 - 001003   2009

ANALYSIS　OF DEFECTS　AND IMPURITIES　IN　NEW　（In）GaAsN　MATERIALS　FOR　CONCENTRATOR　MULTI-JUNCTION　SOLAR　CELLS Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, Nobuaki Kojima, Hidetoshi Suzuki and Boussairi Bouzazi 博士2*

Proceedings34th IEEE Photovoltaic Specialists Confernece   002332 - 002335   2009

Novel materrials for high-efficiency solar cells Reviewed

Nobuaki Kojima, Ｍａｓａｔｏ　Ｎａｔｏｒｉ 修士２*, Hidetoshi Suzuki*, Makoto Inagaki 修士1*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of SPIE   7518   75180p - 1   2009

Relationship Between Grain Boundary Structures and Electrical Property in Polycrystalline Silicon for Solar Cells Reviewed

K. Fukuda 修士2*, H. Kawai 2007修士修了*, K. Arafune 兵庫県立大学*, Yoshio Ohshita, Masafumi Yamaguchi, A. Ogura 明治大学*

Proceedings Renewable Energy 2008   2008

Fabrication of GaAsN Homo-Junction Solar Cells by Chemical Beam Epitaxy Reviewed

H. Suzuki*, K. Nishimura*, T. Hashiguchi*, K. Saito*, B. Balasubramanian*, S. Yamamoto*, M. Inagaki,*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Proceedings 33rd IEEE Photovoltaic Specialist Conference   ( 51 )   2008

Carbon Reduction in GaAsN Thin Films by Flow-Rate-Modulated Chemical Beam Epitaxy Reviewed

Kenichi NISHIMURA 博士3*, Hidetoshi Suzuki*, Kenji SAITO 修士2*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Japanese Journal of Applied Physics   47 ( 4 )   2072 - 2075   2008

Effects of N Related Complex Defects on Electrical Property of GaAsN Films Grown by Chemical Beam Epitaxy Reviewed

H. Suzuki*, K. Nishimura 2007博士満了*, B. Boussairi 博士1*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 23rd European Photovoltaic Solar Energy Conference   438 - 440   2008

Electrical Property and Cell Fabrication of GaAsN Thin Films Grown by Chemical Beam Epitaxy Reviewed

Nobuaki Kojima, H. Suzuki*, K. Nishimura 2007博士満了*, T. Hashiguchi 修士2*, K. Saito 2008修士修了*, B. Balasubramanian*, S. Yamamoto 2007学部卒業*, M. Inagaki 修士1*, Masafumi Yamaguchi

Proceedings 23rd European Photovoltaic Solar Energy Conference   944 - 946   2008

Super High Efficiency Multi-Junction and Concentrator Solar Cells Reviewed

Masafumi Yamaguchi, Nobuaki Kojima, Yoshio Ohshita, T. Takamoto 1998博士修了*, K. Araki 大同特殊鋼*

Proceedings Renewable Energy 2008   IN - PV   2008

Chemical Beam Epitaxy Grown GaAs0.995N0.005 Based Homojunction Solar Cell Properties Reviewed

B. Bouzazi 博士1*, K. Nishimura 2007博士満了*, H. Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2008   O - PV   2008

Effects of N-H Related Complexes on Electrical Property of GaAsN Films Grown by Chemical Beam Epitaxy Reviewed

H. Suzuki*, K. Nishimura 2007博士満了*, B. Bouzazi 博士1*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2008   P - PV   2008

Effect of Surface Steps on N Incorporation Processes of GaAsN Growth in Chemical Beam Epitaxy Reviewed

T. Hashiguchi 修士2*, K. Nishimura 2007博士満了*, H. Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2008   P - PV   2008

Recent Advances in Crystalline Silicon Solar Cells Reviewed

Yoshio Ohshita, K. Arafune 兵庫県立大学*, Masafumi Yamaguchi

Proceedings 18th International Symposium on Fine Chemistry and Functional Polymers , 4th IUPAC International Symposium on Novel Materials and their Synthesis､   339 - 340   2008

Hydrogen reduction in GaAsN thin films by flow rate modulated chemical beam epitaxy Reviewed

K. Saito 2008修士修了*, K. Nishimura 2007博士満了*, H. Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Thin Solid Films   516 ( 11 )   3517 - 3520   2008

Analysis of oxygen incorporation in unidirectionally solidified multicrystalline silicon for solar cells Reviewed

Hitoshi Matsuo 九州大学*, R. Bairava Ganesh 九州大学*, Satoshi Nakano 九州大学*, Lijun Liu 九州大学*, Koji Arafune 兵庫県立大学*, Yoshio Ohshita, Masafumi Yamaguchi, Koichi Kakimoto 九州大学*

Journal of Crystal Growth   310 ( 7-9 )   2204 - 2208   2008

Estimation of growth rate in unidirectionally solidified multicrystalline silicon by the growth-induced striation method Reviewed

R. Bairava Ganesh 九州大学*, Hitoshi Matsuo 九州大学*, Takahiro Kawamura 九州大学*, Yoshihiro Kangawa 九州大学*, Koji Arafune 兵庫県立大学*, Yoshio Ohshita, Masafumi Yamaguchi, Koichi Kakimoto 九州大学*

Journal of Crystal Growth   310 ( 11 )   2697 - 2701   2008

Thermodynamical analysis of oxygen incorporation from a quartz crucible during solidification of multicrystalline silicon for solar cell Reviewed

Hitoshi Matsuo 九州大学*, R. Bairava Ganesh 九州大学*, Satoshi Nakano 九州大学*, Lijun Liu 九州大学*, Yoshihiro Kangawa 九州大学*, Koji Arafune 兵庫県立大学*, Yoshio Ohshita, Masafumi Yamaguchi, Koichi Kakimoto 九州大学*

Journal of Crystal Growth   310 ( 22 )   4666 - 4671   2008

Effect of crucible rotation on oxygen concentration during unidirectional solidification process of multicrystalline silicon for solar cells Reviewed

Hitoshi Matsuo 九州大学*, R. Bairava Ganesh 九州大学*, Satoshi Nakano 九州大学*, Lijun Liu 九州大学*, Koji Arafune 兵庫県立大学*, Yoshio Ohshita, Masafumi Yamaguchi, Koichi Kakimoto 九州大学*

Journal of Crystal Growth   311 ( 4 )   1123 - 1128   2008

Radiation-Resistance Analysis of GaAs and InGaP Sub Cells　for InGaP/GaAs/Ge 3-Junction Space Solar Cells Reviewed

Masafumi Yamaguchi, T. Sasaki 博士3*, H-S. Lee Shinsung Holdings*, C. Morioka JAXA*, N.J. Ekins-Daukes Imperial College*, M. Imaizumi 1999博士修了*, T. Takamoto 1998博士修了*, T. Ohshima JAERI*

Proceedings 33rd IEEE Photovoltaic Specialist Conference   2008

Annealing Effects on Lattice Defects in Lattice Mismatched InGaAs on GaAs Reviewed

T. Sasaki 博士3*, K. Arafune 兵庫県立大学*, A. Sai 修士1*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 33rd IEEE Photovoltaic Specialist Conference   2008

Novel materials for high-efficiency III–V multi-junction solar cells Reviewed

Masafumi Yamaguchi, Ken-Ichi Nishimura 博士３*, Takuo Sasaki 博士２*, Hidetoshi Suzuki*, Koji Arafune*, Nobuaki Kojima, Yoshio Ohshita, Yoshitaka Okada University of Tsukuba*, Akio Yamamoto Fukui University*, Tatsuya Takamoto(Sharp Co.)、Kenji Araki(Daido Steel Corporation)*

Solar Energy   82 ( 2 )   173 - 180   2008

Electrical Properties of Mg Doped C60 Thin Films Reviewed

Nobuaki Kojima, M. Natori 修士1*, H. Suzuki*, Masafumi Yamaguchi

Proceedings 33rd IEEE Photovoltaic Specialist Conference   ( 271 )   2008

Light Trapping Effect of Submicron Surface Textures in Crystalline Si Solar Cells Reviewed

H. Sai AIST*, Y. Kanamori Tohoku Univ.*, K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi

Progress in Photovoltaics   15   415 - 423   2007

Electrical Properties of GaAsN Film Grown by Chemical Beam Epitaxy Reviewed

K. Nishimura 博士3*, H. Suzuki*, K. Saito 修士2*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Physica B   401-402   343 - 346   2007

Wide-Angle Antireflection Effect of Subwavelength Structures for Solar Cells Reviewed

Hitoshi Sai*, Homare Fujii*, Koji Arafune*, Yoshio Ohshita, Yoshiaki Kanamori*, Hiroo Yugami*, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 1   46 ( 6A )   3333 - 3336   2007

Chemical Beam Epitaxy of GaAsN Thin Films with Monomethylhydrazine as N Source Reviewed

Kenichi Nishimura D3*, Hae-Seok Lee1*, Hidetoshi Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 1   46 ( 5A )   2844 - 2847   2007

Directional solidification of polycrystalline silicon ingots by successive relaxation of supercooling method Reviewed

Koji Arafune*, Eichiro Ohishi 2005学部/ 矢崎総業*, Hitoshi Sai AIST*, Yoshio Ohshita, Masafumi Yamaguchi

Journal of Crystal Growth   308 ( 1 )   5 - 9   2007

A 1,340X (GCR) Concentrator PV Module With a Dome-shaped Fresnel Lens Made by Injection Molding and a Kaleidoscope Secondary Made by Thermal Process Reviewed

K. Araki 大同特殊鋼*, M. Hiramatsu 大同メタル*, H.Ito 石塚硝子*, Y. Kemmoku 豊橋創造大学*, Masafumi Yamaguchi

Proceedings 22nd European Photovoltaic Solar Energy Conference　   148 - 151   2007

The Study on Electrical Property of GaAsN Thin Films Grown by Chemical Beam Epitaxy Reviewed

K. Nishimura 博士3*, Nobuaki Kojima, T. Imai 2006修士修了*, H. Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 22nd European Photovoltaic Solar Energy Conference　   684 - 686   2007

Effect of Crucible Rotation on Quality of Polycrystalline Silicon Ingot Grown by Traveling Heater Method Reviewed

K.Arafune*, T.Higo シャープ*, H.Kawai 修士2*, F.Kusuoka 2005卒業*, H.Sai 産業技術総合研究所*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 22nd European Photovoltaic Solar Energy Conference　   1120 - 1123   2007

Carrier Transport Properties in a Silicon Back Contact Type Solar Cell Reviewed

T. Nagashima トヨタ自動車*, K. Okumura トヨタ自動車*, Masafumi Yamaguchi

Proceedings 22nd European Photovoltaic Solar Energy Conference　   1407 - 1410   2007

A Consideration for PV Market Growth Reviewed

Masafumi Yamaguchi, K.. Arafune*, Yoshio Ohshita

Proceedings 22nd European Photovoltaic Solar Energy Conference　   3543 - 3546   2007

Growth and Characterization of Polycrystalline Silicon Ingot for Solar Cells Reviewed

K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi

ProceedingsThe Forum on the Science and Technology of Silicon Materials 2007   346 - 350   2007

Crystal Structures of Copper Phthalocyanine on C60(111) Surface Growth by Molecular Beam Epitaxy Reviewed

H. Suzuki*, Y. Yamashita 2006修士修了*, Nobuaki Kojima, Masafumi Yamaguchi

Proceedings 2007 International Symposium on Dry Process   43 - 44   2007

Novel Materials and Structures for Super High Efficiency Multi-junction Solar Cells Reviewed

Masafumi Yamaguchi, H. Suzuki*, K. Nishimura 博士3*, Nobuaki Kojima, Yoshio Ohshita, Y. Okada 筑波大学*

Proceedings ISES Solar World Congress 2007   1028 - 1032   2007

Interaction of electron irradiation with nitrogen-related deep levels in InGaAsN Reviewed

Aurangzeb Khan Univ. South Alabama*, Jihua Gou Univ. South Alabama*, M. Imazumi 1999博士修了JAXA*, Masafumi Yamaguchi

Applied Physics Letters   91 ( 4 )   043503   2007

Self-annihilation of electron-irradiation-induced defects in InAsxP1−x/InP multiquantum well solar cells Reviewed

Aurangzeb Khan Univ. South Alabama*, A. Freundlich Univ. Houston*, Jihua Gou Univ. South Alabama*, A. Gapud Univ. South Alabama*, M. Imazumi 1999博士修了JAXA*, Masafumi Yamaguchi

Applied Physics Letters   90 ( 23 )   233111   2007

Radiation Resistance of Wide Band Gap n+/ p AlInGaP Solar Cell for High-Efficient Multijunction Space Solar Cells Reviewed

H.S. Lee LG*, Masafumi Yamaguchi, N.J. Ekins-Daukes Sydney Univ.*, A. Khan Univ. South Alabama*, T. Takamoto Sharp*, M. Imaizumi JAXA*, T. Ohshima JAEA*, H. Itoh JAEA*

Japanese Journal of Applied Physics.Part 2   46 ( 26 )   L645 - 647   2007

Carbon incorporation process in GaAsN films grown by chemical beam epitaxy using MMHy or DMHy as the N source Reviewed

H. Suzuki*, K. Nishimura 博士2*, H.S.Lee LG Electronics Institute of Technology*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Thin Solid Films   515   5008 - 5011   2007

Study on Iron Distribution and Electrical Activities at Grain Boundaries in Polycrystalline Silicon Substrate for Solar Cells Reviewed

K. Arafune*, E. Ohishi 2005卒業・矢崎総業*, H. Sai*, Y. Terada SPring-8*, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 1   45 ( 8A )   6153 - 6156   2006

Reduction of Residual Carbon in GaAsN Films Grown by Chemical Beam Epitaxy Reviewed

H. Suzuki*, K. Nishimura*, H. S. Lee*, K. Saito*, T. Kawahigashi*, T. Imai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   819 - 822   2006

Influences of Growth Temperature and Surface Steps on N Concentration and Crystal Quality of GaAsN Grown by Chemical Beam Epitaxy Reviewed

K. Nishimura*, H. S. Lee*, H. Suzuki*, T. Kawahigashi*, T. Imai*, K. Saito*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   815 - 818   2006

Role of Nitrogen and Impurity on Free Carrier Concentration in GaAsN Grown by Chemical Beam Epitaxy Reviewed

T. Imai*, H. S. Lee*, K. Nishimura*, H. Suzuki*, T. Kawahigashi*, T. Sasaki*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   842 - 844   2006

Radiation Hardness Analysis of InAsxP1-x/InP Multiquantum Well Solar Cells Structures for Space Applications Reviewed

A. Khan*, A. Freundlich*, J. Gou*, R. Lam*, M. Alam*, A.Gapud*, A. Alemu*, L. Williams*, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1858 - 1860   2006

Interface Structure Analysis Between C60 and CuPc for Organic Solar Cells Reviewed

Y. Yamashita*, H. Suzuki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   263 - 266   2006

Fabrication of GaInNAs-based Solar Cells for Application to Multi-junction Tandem Solar Cells Reviewed

N. Miyashita*, Y. Shimizu*, N. Kobayashi*, Y. Okada*, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   869 - 872   2006

Recent Progress in Crystalline Silicon Solar Cells Reviewed

Yoshio Ohshita, K. Arafune*, Masafumi Yamaguchi

Proceedings 2006 International Workshop on Sustainable Energy and Materials   31 - 34   2006

Development of GaAsN Semiconductor Alloys for High Efficiency Solar Cells Reviewed

H. Suzuki*, K. Nishimura*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 International Workshop on Sustainable Energy and Materials   311 - 314   2006

Novel Materials and Structures for High Efficiency Multi-junction Solar Cells Reviewed

Masafumi Yamaguchi, Y. Okada*, A. Yamamoto*, T. Takamoto*, K. Araki*, Yoshio Ohshita

Proceedings 21st European Photovoltaic Solar Energy Conference   53 - 56   2006

Surface Recombination at Si/SiO2 Interface with Various Interface State Densities and Oxide Charges Reviewed

H. Sai*, R. Imai*, N. Yamamoto*, T. Ishiwata*, K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 21st European Photovoltaic Solar Energy Conference   915 - 918   2006

Present status and future of crystalline silicon solar cells in Japan Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, K. Arafune*, H. Sai*, M. Tachibana*

Solar Energy   80   104 - 110   2006

Study on defects and impurities in cast-grown polycrystalline silicon substrates for solar cells Reviewed

K. Arafune*, Takuo Sasaki, F. Wakabayashi 2004卒業・愛三工業*, Y. Terada Spring-8*, Yoshio Ohshita, Masafumi Yamaguchi

Physica B   376-377   236 - 239   2006

Effects of a low-energy proton irradiation on n+/p-AlInGap solar cells Reviewed

H. S. Lee LG Elect. Inst. Tech.*, Masafumi Yamaguchi, N. J. Ekins-Daukes Univ. Sydney*, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・Sharp*, M. Imaizumi 1999博士修了・JAXA*, T. Ohshima JEAE*, H. Itoh JEAE*

Physica B   376-377   564 - 567   2006

Antireflective Subwavelength Structures on Crystalline Si Fabricated Using Directly Formed Anodic Porous Alumina Masks Reviewed

H. Sai*, H Fujii*, K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi, Y. Kanamori Tohoku Univ.*, H. Yugami Tohoku Univ.*

Applied Physics Letters   88 ( 20 )   201116   2006

Packaging III-V Tandem Solar Cells for Practical Terrestrial Applications Achievable to 27% of Module Efficiency by Conventional Machine Assemble Technology Reviewed

K. Araki Daido Steel Co.*, M. Kondo Daido Steel Co.*, H. Uozumi Daido Steel Co.*, N.J. Ekins-Daukes Univ. Sydney*, T. Egami Daido Metal Co.*, M. Hiramatsu Daido Metal Co.*, Y. Miyazaki Daido Metal Co.*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   90 ( 18-19 )   3320 - 3326   2006

Achievement of 27 % Efficient and 200 Wp Concentrator Module and the Technological Roadmap toward Realization of More Than 31 % Efficient Modules Reviewed

K. Araki Daido Steel Co.*, M. Kondo Daido Steel Co.*, H. Uozumi Daido Steel Co.*, N.J. Ekins-Daukes Univ. Sydney*, Y. Kemmoku Toyohashi Sozo College*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   90 ( 18-19 )   3312 - 3319   2006

Super High Efficiency Multi-Junction and Concentrator Solar Cells Reviewed

Masafumi Yamaguchi, T. Takamoto Sharp Co.*, K. Araki Daido Steel Co.*

Solar Energy Materials and Solar Cells   90 ( 18-19 )   3068 - 3077   2006

Optical Properties of C60/a-C Superlattice Structures for Solar Cell Applications Reviewed

Nobuaki Kojima, Y. Sugiura アイシン精機・2003卒業*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   90 ( 18-19 )   3394 - 3398   2006

A Small Sun in an ETUI –Possibilities in HCPV- Reviewed

K. Araki*, M. Hiramatsu*, Y. Kemmoku*, A. Akisawa*, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   603 - 608   2006

DLTS: A Promising Technique for The Identification of The Recombination and Compensator Centers in Solar Cell Materials Reviewed

A. Khan*, Masafumi Yamaguchi, H. S. Lee*, N. J. Ekins-Daukes*, T. Takamoto*, M. Imaizumi*, S. Taylor*

Proc2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1763 - 1768   2006

Mg Doping in C60 Layer for C60/a-C Superlattice Solar Cells Reviewed

Nobuaki Kojima, T. Terayama*, K. Honda*, H. Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   53 - 55   2006

Analysis for Radiation-Resistance of InGaP and GaAs Sub-Cells for InGaP/GaAs/Ge 3-Junction Solar Cells Reviewed

Masafumi Yamaguchi, N. J. Ekins-Daukes*, H. S. Lee*, T. Sumita*, M. Imaizumi*, T. Takamoto*, T. Agui*, M. Kaneiwa*, T. Ohshima*

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1789 - 1792   2006

Hydrogen Treatment Effects of a-C Films for C60/a-C Superlattice Solar Cells Reviewed

K. Honda*, Nobuaki Kojima, T. Imaizumi*, T. Terayama*, H. Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   142 - 145   2006

Surface Passivation for Germanium and Silicon Back Contact Type Photovoltaic Cells Reviewed

T. Nagashima*, K. Hokoi*, K. Okumura*, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   655 - 658   2006

Growth and Characterization of Multicrystalline Silicon Ingots Grown by Directional Solidification Technique Reviewed

K. Arafune*, E. Ohishi*, F. Kusuoka*, H. Kawai*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1074 - 1077   2006

Numerical Analysis and Demonstration of Submicron Antireflective Textures for Crystalline Silicon Solar Cells Reviewed

H. Sai*, H. Fujii*, Y. Kanamori*, K. Arafune*, Yoshio Ohshita, H. Yugami*, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1191 - 1194   2006

Surface Passivation of Crystalline Silicon Solar Cells by Atmospheric Pressure Chemical Vapor Deposition Reviewed

R. Imai*, T. Ishiwata*, H. Sai*, N. Yamamoto*, K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1152 - 1155   2006

Minority-Carrier Injection-Enhanced Recovery of Radiation-Induced Defects in n+p AlInGaP Solar Cells Reviewed

H. S. Lee*, Masafumi Yamaguchi, N. J. Ekins-Daukes*, A. Khan*, T. Takamoto*, M. Imaizumi*, T. Ohshima*, H. Itoh*

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1826 - 1829   2006

DLTS Analysis of Radiation-Induced Defects in InGaAsN Solar Cell Structures Reviewed

A. Khan*, J. Gou*, R. C. Lam*, S. R. Kurtz*, S. W. Johnston*, M. Imazumi*, Masafumi Yamaguchi

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   1895 - 1898   2006

Boron implantation effects in CdS thin films grown by chemical synthesis Reviewed

K.L. Narayanana*, Masafumi Yamaguchi, J.A. Davila-Pintleb*, R. Lozada-Moralesb*, O. Portillo-Morenoc*, O. Zelaya-Angeld*

Vacuum   81 ( 11-12 )   1430 - 1433   2006

HCPV for Building Integration Reviewed

K. Araki*, M. Hiramatsu*, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   290 - 293   2006

Carbon-based Superlattice Solar Cells Reviewed

Nobuaki Kojima, T. Terayama*, K. Honda*, H. Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   373 - 375   2006

Molecular Orientation of Copper Phthalocyanine on C60 (111) Surface Reviewed

H. Suzuki*, Y. Yamashita*, Nobuaki Kojima, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   380 - 383   2006

Effect of Heater Transfer Rate on Quality of Multicrystalline Silicon Ingot Grown By Traveling Heater Method Reviewed

K. Arafune*, E. Ohishi*, F. Kusuoka*, H. Kawai*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   407 - 410   2006

Possibilities in Concentrator PV Reviewed

K. Araki*, M. Hiramatsu*, Y. Kemmoku*, A. Akisawa*, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   427 - 430   2006

Influence of Surface Steps on N Incorporation in GaAsN Grown by Chemical Beam Epitaxy Reviewed

K. Nishimura*, H. Suzuki*, T. Imai*, K. Saito*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   431 - 434   2006

Thermal Cycle Annealing Effects on Electrical Properties and Structural Defects in Lattice Mismatched InGAaS Solar Cells Reviewed

T. Sasaki*, K. Arafune*, H. S. Lee*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   439 - 442   2006

Design of A 1,000 X Concentrator PV System for III-V Solar Cells Reviewed

K. Araki*, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   443 - 446   2006

Electron Radiation-Induced Defects in Lattice Mismatched InGaAs Solar Cells Reviewed

T. Sasaki*, T. Takamoto*, M. Imaizumi*, T. Ohshima*, H. Itoh*, Masafumi Yamaguchi

Proceedings 7th International Workshop on Radiation Effects on Semiconductor Devices for Space Application   165 - 168   2006

Hydrogen Reduction in GaAsN Thin Films by the Flow-Rate Modulated Chemical Beam Epitaxy Reviewed

K. Saito*, K. Nishimura*, H. Suzuki*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 2006 International Symposium on Dry Process   95 - 96   2006

Impurity Distribution in Polycrystalline Silicon Substrate for Solar Cells Reviewed

H. Kawai*, F. Kusuoka*, K. Arafune*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 3rd Workshop on the Future Direction of Photovoltaics   51 - 54   2006

First Grid-connected Concentrator PV System Using III-V Cells in Industrial Area Reviewed

K. Araki*, K. Emery*, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   224 - 227   2006

Directional Solidification of Polycrystalline Silicon Ingots with Successive Relaxation of Supercooling Method Reviewed

K. Arafune*, E. Ohishi*, H. Kawai*, F. Kusuoka*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings 21st European Photovoltaic Solar Energy Conference   1025 - 1028   2006

Directional Solidification of Multicrystalline Silicon Ingot Reviewed

K. Arafune*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings International Workshop on Science and Technology of Crystalline Si Solar Cells   13 - 16   2006

Submicron Surface Textures for Light Trapping in Crystalline Silicon Solar Cells Reviewed

H. Sai*, Y. Kanamori*, K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings Renewable Energy 2006   213 - 216   2006

Deep-level defects introduced by 1 MeV electron radiation in AlInGaP for multijunction space solar cells Reviewed

H. S. Lee*, Masafumi Yamaguchi, N. J. Ekins-Daukes Univ. Sydney*, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・Sharp*, T. Agui Sharp*, K. Kamimura Sharp*, M. Kaneiwa Sharp*, M. Imaizumi 1999博士修了・JAXA*, T. Ohshima(JAEA)、H. Itoh(JAEA)*

Journal of Applied Physics   98 ( 093701 )   2005

Nitrogen Incorporation in GaAsN Grown by Chemical Beam Epitaxy Reviewed

Yoshio Ohshita, K. Nishimura*, H. S. Lee*, Nobuaki Kojima, I. Gono*, H. Suzuki*, Masafumi Yamaguchi

Proc. 270th Meeting of The Electrochemical Society   272 - 277   2005

Development of a New 550x Concentrator Module with 3J Cells – Performance and Reliability Reviewed

K. Araki Daido Steel*, H. Uozumi Daido Steel*, Masafumi Yamaguchi, Y. Kemmoku Toyohasi Sozo College*

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   216 - 219   2005

Evaluation and analysis on multi-junction solar cells and modules under realistic spectrum - III-V and Concentrators – Reviewed

K. Araki Daido Steel*, H. Uozumi Daido Steel*, Masafumi Yamaguchi, Y. Kemmoku Toyohasi Sozo College*

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   341 - 342   2005

Reliabilities of High Concentrator PV Modules Using III-V Cells Reviewed

K. Araki Daido Steel*, H. Uozumi Daido Steel*, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   539 - 540   2005

Defect Density Reduction in a-C Layers for C60/a-C Superlattice Solar Cells Reviewed

Nobuaki Kojima, T. Imaizumi 2004卒業・デンソーテクノ*, T. Terayama 修士2*, H. Suzuki*, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   584 - 585   2005

Radiation-Resistance of a Wide Band-Gap AlInGaP Space Solar Cell under 1 MeV Electron Irradiation Reviewed

H.S. Lee*, Masafumi Yamaguchi, N.J. Ekins-Daukes Univ. Sydney*, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・Sharp*, M. Imaizumi 1999博士修了・JAXA*, T. Ohshima JAEA*, H. Itoh JAEA*

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   555 - 556   2005

Analysis for Radiation-Resistance of GaAs Sub-Cells for InGaP/GaAs/Ge 3-junction Solar Cells Reviewed

Masafumi Yamaguchi, T. Sumita JAXA*, M. Imaizumi 1999博士修了・JAXA*, N.J. Ekins-Daukes Univ. Sydney*, H.S. Lee*, T. Takamoto 1999博士修了・Sharp*, T. Agui Sharp*, M. Kaneiwa Sharp*, T. Ohshima JAEA*

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   545 - 548   2005

Surface Passivation of Crystalline Silicon Solar Cells by High-Pressure Thermal Oxidation at Low Temperature Reviewed

H. Sai*, K. Yamashita 2004卒業・日亜化学*, N. Yamamoto IHI*, R. Imai 修士1*, T. Ishiwata 学部4*, K. Arafune*, Yoshio Ohshita, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   406 - 407   2005

Anti-Reflective Subwavelength Structures for Crystalline-Si Solar Cells Fabricated by Porous Alumina Mask and Fast Atom Beam Etching Reviewed

H. Sai*, K. Tsuji 2004卒業・トヨタ車体*, H. Fujii 学部4*, K. Arafune*, Yoshio Ohshita, Y. Kanamori Tohoku Univ.*, H. Yugami Tohoku Univ.*, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   708 - 709   2005

Improvements of Cell Properties by Thermal Cycle Annealing in Lattice-mismatched InGaAs Reviewed

T. Sasaki 修士2*, K. Arafune*, H.S. Lee*, N.J. Ekins-Daukes Univ. Sydney*, S. Tanaka Nagoya Univ.*, Yoshio Ohshita, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   383 - 384   2005

Impurities in GaAsN Grown by Chemical Beam Epitaxy Using Monomethylhydrazine or Dimethyl-hidrazine as N Precursor Reviewed

H. Suzuki*, K. Nishimura*, H.S. Lee*, Yoshio Ohshita, I. Gono*, Nobuaki Kojima, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   381 - 382   2005

R&D Activities for Super High-efficiency Multi-junction and Concentrator Solar Cells in Japan Reviewed

Masafumi Yamaguchi, T. Takamoto 1999博士修了・Sharp*, K. Araki Daido Steel*, N.J. Ekins-Daukes Univ. Sydney*

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   541 - 544   2005

Electrical and optical properties of radiation-induced dominant recombination center in InxGa1-xP space solar cells Reviewed

M. Adachi Tottori Univ.*, A. Khan Univ. South Alabama*, K. Ando Tottori Univ.*, N. J. Ekins-Daukes Sydney Univ.*, H. S. Lee*, Masafumi Yamaguchi

Physical Review B   72   155320   2005

Study on Defects Around Grain Boundaries in Cast-Grown Polycrystalline Silicon Reviewed

K. Arafune*, T. Sasaki 修士2*, F. Wakabayashi 2004卒業・愛三工業*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   812 - 813   2005

Super-high-efficiency Multi-junction Solar Cells Reviewed

Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*, A. Khan Univ. South Alabama*, M. Imaizumi 1999博士修了・JAXA*, S. Matsuda JAXA*, N. J. Ekins-Daukes*

Progress in Photovoltaics   13   125 - 132   2005

Effects of defects and impurities on minority carrier lifetime in cast-grown polycrystalline silicon Reviewed

Yoshio Ohshita, Y. Nishikawa 2004卒業・愛三工業*, M. Tachibana*, V. K. Tuong 2004博士満了*, T. Sasaki 修士1*, Nobuaki Kojima, S. Tanaka Nagoya Univ.*, Masafumi Yamaguchi

Journal of Crystal Growth   275   e491 - e494   2005

Chemical beam epitaxy of InGaAsN films for multi-junction tandem solar cells Reviewed

H. S. Lee*, K. Nishimura 修士2*, Y. Yagi 2004修士修了・豊田自動織機*, M. Tachibana*, N. J. Ekins-Daukes*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Journal of Crystal Growth   275   e1127 - e1130   2005

C60/a-C Superlattice Structures for Solar Cell Applications Reviewed

Nobuaki Kojima, T. Terayama 修士1*, H. Suzuki*, T. Imaizumi 学部4*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   118 - 120   2005

Nitrogen Incorporation in GaInNAs Grown by Chemical Beam Epitaxy for Multi-Junction Tandem Solar Cell Reviewed

K. Nishimura 修士2*, H. S. Lee*, H. Suzuki*, I. Gono 学部4*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   722 - 724   2005

Multi-junction III-V solar cells: current status and future potential Reviewed

Masafumi Yamaguchi, T. Takamoto 1998博士修了・Sharp*, K. Araki aido Steel*, N.J. Ekins-Daukes Univ.Sydney*

Solar Energy   79   78 - 85   2005

InGaP/GaAs-based Multijunction Solar Cells Reviewed

T. Takamoto 1998博士修了・Sharp*, M. Kaneiwa Sharp*, M. Imaizumi 1999博士修了・JAXA*, Masafumi Yamaguchi

Progress in Photovoltaics   13   495 - 511   2005

Development of Concentrator Modules with Dome-shaped Fresnel Lenses and Triple-junction Concentrator Cells Reviewed

K. Araki Daido Steel Co.*, H. Uozumi Daido Steel Co.*, T. Egami Daido Metal Co.*, M. Hiramatsu Daido Metal Co.*, Y. Miyazaki Daido Metal Co.*, Y. Kemmoku Toyohashi SOZO College*, A. Akisawa TUAT*, N.J. Ekins-Daukes Univ. Sydney*, H.S. Lee*, Masafumi Yamaguchi

Progress in Photovoltaics   13   513 - 527   2005

Activity and Current Status of R&D on Space Solar Cells in Japan Reviewed

M. Imaizumi 1999博士修了・JAXA*, S. Matsuda JAXA*, S. Kawakita JAXA*, T. Takamoto 1998博士修了・Sharp*, T. Ohshima JAEA*, Masafumi Yamaguchi

Progress in Photovoltaics   13   529 - 543   2005

Subwavelength Structure for Anti-Reflection in Solar Cell Applications Reviewed

H. Sai*, K. Tsuji 2004卒業・トヨタ車体*, K. Arafune*, Yoshio Ohshita, Y. Kanamori Tohoku Univ.*, K. Hane Tohoku Univ.*, H. Yugami Tohoku Univ.*, Masafumi Yamaguchi

Proceedings20th European Photovoltaic Solar Energy Conference and Exhibition   148 - 151   2005

Efficiency Improvements of Back-Contact Type Photovoltaic Cells by a Floating Emitter Reviewed

T. Nagashima Toyota Motor*, K. Hokoi Toyota Motor*, K. Okumura Toyota Motor*, Masafumi Yamaguchi

Proceedings20th European Photovoltaic Solar Energy Conference and Exhibition   163 - 166   2005

The Temperature Coefficient in 3-J Concentrator Cell by Outdoor Test with 550X Dome-Shaped Fresnel Lens Reviewed

H. S. Lee*, Masafumi Yamaguchi, K. Araki Daido Steel*, T. Egami Daido Metal*, Y. Miyazaki Daido Metal*, M. Hiramatsu Daido Metal*, Y. Kemmoku Toyohashi Sozo College*, N. J. Ekins-Daukes Univ. Sydney*

Proceedings20th European Photovoltaic Solar Energy Conference and Exhibition   2425 - 2427   2005

Research Activities on Crystalline Silicon Solar Cells in Toyota Technological Institute Reviewed

K. Arafune*, H. Sai*, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings20th European Photovoltaic Solar Energy Conference and Exhibition   1012 - 1015   2005

Consideration on Space Application of High-Efficiency Solar Cells Developed for Terrestrial Use Reviewed

Masafumi Yamaguchi, M. Imaizumi 1999博士修了・JAXA*, T. Takamoto 1998博士修了・Sharp*, K. Araki Daido Steel*, N. J. Ekins-Daukes Univ. Sydney*, H. S. Lee*

Proceedings20th European Photovoltaic Solar Energy Conference and Exhibition   460 - 463   2005

Improvement in Crystallization of InGaAsN Films by Light Illumination for High Efficiency Multi-Junction Tandem Solar Cell Reviewed

K. Nishimura 博士1*, H. S. Lee*, H. Suzuki*, I. Gono 2004卒業・愛知製鋼*, T. Imai 修士1*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings20th European Photovoltaic Solar Energy Conference and Exhibition   542 - 545   2005

Carbon Incorporation Process in GaAsN Films Grown by Chemical Beam Epitaxy Using MMH or DMH as N Precursor Reviewed

H. Suzuki*, K. Nishimura 博士1*, H.S. Lee*, Yoshio Ohshita, I. Gono 2004卒業・愛知製鋼*, Nobuaki Kojima, Masafumi Yamaguchi

Proceedings 2005 International Symposium on Dry Process   329 - 330   2005

Light Illumination Induced Effects on GaAsN Thin Films Grown by Chemical Beam Epitaxy Reviewed

H.S. Lee*, K. Nishimura 博士1*, H. Suzuki*, Yoshio Ohshita, T. Imai 修士1*, Nobuaki Kojima, Masafumi Yamaguchi

Proceedings 2005 International Symposium on Dry Process   331 - 332   2005

化合物半導体太陽電池 Reviewed

Masafumi Yamaguchi

光学   33 ( 1 )   22 - 26   2004

Approach for reducing the Rayleigh scattering loss in optical fibers Reviewed

Kazuya Saito, Masafumi Yamaguchi, A. J. Ikushima*, K. Ohsono Optoelectronic system lab, Hitachi Cable Ltd.*, Y. Kurosawa Optoelectronic system lab, Hitachi Cable Ltd.*

Journal of Applied Physics   95 ( 4 )   1733 - 1735   2004

Thermophotovoltaic Generation with Microstructured Tungsten Selective Emitters Reviewed

H. Sai*, T. Kamikawa Tohoku Univ.*, Y. Kanamori Tohoku Univ.*, K. Hane Tohoku Univ.*, H. Yugami Tohoku Univ.*, Masafumi Yamaguchi

Proc. Sixth Conference on Thermophotovoltaic Generation of Electricity   206 - 214   2004

R&D Activities on III-V High-Efficiency, Rad-Hard Solar Cells in Japan Reviewed

M. Imaizumi 1999博士修了・JAXA*, T. Sumita JAXA*, M. Tajima JAXA*, Masafumi Yamaguchi

Proc. 6th International Workshop on Radiation Effects on Semiconductor Devices for Space Application, Japan (JAXA and JAERI, 2004)   75 - 80   2004

Minority-Carrier Injection Annealing on the Radiation-Induced Defects in AlInGaP for High Efficiency Multi-Junction Solar Cells Reviewed

H. S. Lee*, N. J. Ekins-Daukes*, T. Sasaki 修士1*, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, K. Kamimura SHARP*, M. Kaneiwa SHARP*, Masafumi Yamaguchi

Proc. 6th International Workshop on Radiation Effects on Semiconductor Devices for Space Application, Japan (JAXA and JAERI, 2004)   133 - 136   2004

Future Development of InGaP/(In)GaAs Based Multijunction Solar Cells Reviewed

T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, H. Washio SHARP*, N. Takahashi SHARP*, K. Nakamura SHARP*, O. Anzawa SHARP*, M. Kaneiwa SHARP*, K. Kamimura SHARP*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   519 - 524   2004

Signature of Intermediate Band Materials from Luminescence Measurements Reviewed

N. J. Ekins-Daukes*, C. B. Honsberg Univ. Delaware*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   49 - 54   2004

Defect Observation of AlInGaP Irradiated with 30keV Protons for Multi-Junction Space Solar Cells Reviewed

H. S. Lee*, N. J. Ekins-Daukes*, T. Sasaki 修士1*, Masafumi Yamaguchi, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, K. Kamimura SHARP*, M. Imaizumi 1999博士修了・JAXA*, H. Itoh JAERI*

Proc. 31st IEEE Photovoltaic Specialists Conference   556 - 558   2004

Minimum Performance Criteria for Quantum Well Based Junctions in Multi-Junction Solar Cells Reviewed

N. J. Ekins-Daukes*, R. P. Raffaelle Rochester Inst. Tech.*, K. W. J. Barnham Imperial College*, I. M. Ballad Imperial College*, A. Freundlich Univ. Houston*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   86 - 89   2004

A Germanium Back Contact Type Cell for Thermophotovoltaics Reviewed

T. Nagashima Toyota Motor Co.*, K. Hokoi Toyota Motor Co.*, K. Okumura Toyota Motor Co.*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   659 - 662   2004

Native and Radiation Induced Defects in Lattice Mismatched InGaAs and InGaP Reviewed

N. J. Ekins-Daukes*, K. Arafune*, H. S. Lee*, T. Sasaki 修士1*, Masafumi Yamaguchi, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, M. Kaneiwa SHARP*, T. Ohshima(JAERI)、H. Itoh(JAERI)*

Proc. 31st IEEE Photovoltaic Specialists Conference   683 - 686   2004

Field Test and Analysis: The Behavior of 3-J Concentrator Cells Under The Control of Cell Temperature Reviewed

H. S. Lee*, N. J . Ekins-Daukes*, K. Araki Daido Steel*, Y. Kemmoku Toyohashi Sozo College*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   754 - 757   2004

Numerical Study on Tungsten Selective Radiators with Various Micro/Nano Structures Reviewed

H. Sai*, Y. Kanamori Tohoku Univ.*, K . Hane Tohoku Univ.*, H. Yugami Tohoku Univ.*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   762 - 765   2004

Carbon Related Defects and Iron Distribution in Cast-Grown Polycrystalline Silicon Reviewed

Yoshio Ohshita, K. Arafune*, T. Sasaki 修士1*, M. Tachibana*, Y. Terada JASRI Spring-8*, S. Tanaka Nagoya Univ.*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   1269 - 1272   2004

Comparison of Thermal Annealing Behavior of Radiation Induced Defects in Lattice Mismatched InGaP and AlInGaP Solar Cells Structures Reviewed

A. Khan Univ. South Alabama*, S. Marupaduga Univ. South Alabama*, M. Alam Univ. South Alabama*, N. J. Ekins-Daukes*, H. S. Lee*, T. Sasaki 修士1*, Masafumi Yamaguchi

Proc. 31st IEEE Photovoltaic Specialists Conference   663 - 666   2004

Present Status and Future of Crystalline Silicon Solar Cells Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, K. Arafune*, H. Sai*, M. Tachibana*

Proc. Korean Conference on Innovative Science and Technology 2004   44 - 54   2004

Japanese Programs on Novel Concepts in PV Reviewed

Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*, K. Araki Daido Steel*, M. Imaizumi 1999博士修了・JAXA*

Semiconductors   38 ( 8 )   956 - 961   2004

Performance of single-junction and dual-junction InGaP/GaAs solar cells under low concentration ratios Reviewed

A. Khan Univ. South Alabama*, Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*

Applied Physics Letters   85 ( 15 )   3098 - 3100   2004

Radiation response analysis of wide-gap p-AlInGaP for superhigh-efficiency space photovoltaics Reviewed

A. Khan Univ. South Alabama*, S. Marupaduga Univ. South Alabama*, S. S. Anandakrishnan Univ. South Alabama*, M. Alam Univ. South Alabama*, N. J. Ekins-Daukes*, H. S. Lee*, T. Sasaki 修士1*, Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*, T. Agui(SHARP)、K. Kamimurai()*

Applied Physics Letters   85 ( 22 )   5218 - 5220   2004

Carrier removal in lattice-mismatched InGaP solar cells under 1-MeV-electron irradiation Reviewed

N. J. Ekins-Daukes*, H. S. Lee*, T. Sasaki 修士1*, Masafumi Yamaguchi, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, K. Kamimura SHARP*, M. Kaneiwa SHARP*, M. Imaizumi(1999博士修了・JAXA)、T. Ohshima(JAERI)、T. Kamiya(JAERI)*

Applied Physics Letters   85 ( 13 )   2511 - 2513   2004

Rectifying I-V Characteristics of n-Type Fluorine Implanted a-C/p-Type Si Heterojunction Diodes Reviewed

K. L. Narayanan Nagoya Inst. Tech.*, T. Soga Nagoya Inst. Tech.*, N. J. Ekins-Daukes*, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 2   43 ( 1A/B )   L24 - L26   2004

地上用太陽電池効率の理論考察 Reviewed

荒木建次 大同特殊鋼*, N. J. Ekins-Daukes*, Masafumi Yamaguchi

電気製鋼   75 ( 3 )   155 - 163   2004

変換効率28%の集光式太陽光発電装置開発 Reviewed

荒木建次 大同特殊鋼*, 近藤道雄 大同特殊鋼*, 魚住久文 大同特殊鋼*, 高本達也 1998博士修了・シャープ*, 江上敏夫 大同メタル*, 平松雅男 大同メタル*, 宮崎憲徳 大同メタル*, 見目喜重 豊橋創造大学*, Masafumi Yamaguchi

電気製鋼   75 ( 3 )   165 - 172   2004

Ion Implantation Effects of Microcrystalline and Nanocrystalline Diamond Thin Films Reviewed

K. L. Narayanan Nagoya Inst. Tech.*, T. Soga Nagoya Inst. Tech.*, T. Tokunaga Nagoya Inst. Tech.*, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 1   43 ( 12 )   7971 - 7975   2004

Structural change of OH-free fused quartz tube by blowing with hydrogen-oxygen flame Reviewed

N. Kuzuu 福井大学*, Y. Kokubo 福井大学*, I. Serizawa 福井大学*, L. H. Zeng 福井大学*, K. Fujii 福井大学*, Masafumi Yamaguchi, Kazuya Saito, A. J. Ikushima*

Journal of Non-Crystalline Solids   333   115 - 123   2004

Japanese Activities of R&D on III-V Concentrator Solar Cells and Modules Reviewed

Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, M. Kaneiwa SHARP*, K. Araki Daido Steel*, M. Kondo Daido Steel*, H. Uozumi Daido Steel*, M. Hiramatsu Daido Metal*, T. Egami Daido Metal*

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   2014 - 2017   2004

Conductivity Behavior of C60/a-C Superlattice Structures for Solar Cell Applications Reviewed

Nobuaki Kojima, Y. Sugiura 2003卒業・アイシン精機*, T. Terayama 修士1*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   62 - 64   2004

Consideration of Lattice-Mismatched InGaP/InGaAs/Ge 3-Junction Solar Cells Reviewed

Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, M. Kaneiwa SHARP*, K. Nishimura 修士2*, Y. Yagi 2004修士修了・豊田自動織機*, T. Sasaki 修士1*, N. J. Ekins-Daukes*, Nobuaki Kojima

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   3610 - 3613   2004

A Germanium Back-Contact Type Cell with Improved Efficiency for Thermo-Photovoltaic Reviewed

T. Nagashima Toyota Motor Co.*, K. Hokoi Toyota Motor Co.*, K. Okumura Toyota Motor Co.*, K. Kawaguchi Toyota Central Lab.*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   101 - 104   2004

Ion Beam Induced Effects in RF Plasma CVD Deposited Hydrogenated a-C Films and Attempts on Fabrication of Carbon-Based Solar Cells Reviewed

K. L. Narayanan Nagoya Inst. Tech.*, T. Soga Nagoya Inst. Tech.*, N. J. Ekins-Daukes*, Yoshio Ohshita, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   231 - 234   2004

Carrier Removal and Defect Generation in Lattice-Mismatched InGaP under 1MeV Electron Irradiation Reviewed

N. J. Ekins-Daukes*, H. S. Lee*, T. Sasaki 修士1*, Masafumi Yamaguchi, A. Khan Univ. South Alabama*, T. Takamoto 1998博士修了・SHARP*, T. Agui SHARP*, K. Kamimura SHARP*, M. Imaizumi 1999博士修了・JAXA*, T. Kamiya JAERI*

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   3640 - 3643   2004

Packaging III-V Tandem Solar Cells for Practical Terrestrial Applications Achievable to 28 % of Module Efficiency by Conventional Machine Assemble Technology and Possibility of 500 X and low weight HCPV for Space Reviewed

K. Araki Daido Steel*, M. Kondo Daido Steel*, H. Uozumi Daido Steel*, Y. Kemmoku Toyohashi Sozo College*, N. J. Ekins-Daukes*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   3662 - 3665   2004

Physics Based Studies on the Unique Properties of Radiation Induced Dominant Recombination Center in InGaP Space Solar Cells Reviewed

M. Adachi Tottori Univ.*, A. Khan Univ. South Alabama*, K. Ando Tottori Univ.*, N. J. Ekins-Daukes*, H. S. Lee*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   3678 - 3681   2004

Chemical Beam Epitaxy of InGaAsN for Four-Junction Tandem Solar Cell Application Reviewed

K. Nishimura 修士2*, Y. Yagi 2004修士修了・豊田自動織機*, H. S. Lee*, N. J. Ekins-Daukes*, Yoshio Ohshita, Nobuaki Kojima, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   3712 - 3714   2004

The Design Specification for Syracuse; A Multi-Junction Concentrator System Computer Model Reviewed

N. J. Ekins-Daukes*, Y. Kemmoku Toyohashi Sozo College*, K. Araki Daido Steel*, T. R. Betts Loughborough Univ.*, R. Gottschalg Loughborough Univ.*, D. G. Infield Loughborough Univ.*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   2466 - 2469   2004

Micro-Defects and Impurities in Cast-Grown Polycrystalline Si Reviewed

Yoshio Ohshita, Y. Nishikawa 2004卒業・愛三工業*, T. Sasaki 修士1*, M. Tachibana*, H. S. Lee*, V. K. Tuong 2004博士満了*, K. Arafune*, S. Tanaka Nagoya Univ.*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   821 - 824   2004

Thermophotovoltaic Power Generation with Microstructured Tungsten Selective Emitters Reviewed

H. Sai*, T. Kamikawa Tohoku Univ.*, Y. Kanamori Tohoku Univ.*, K. Hane Tohoku Univ.*, H. Yugami Tohoku Univ.*, Masafumi Yamaguchi

Proc.19th European Photovoltaic Solar Energy Conference and Exhibition, (WIP/ETA, 2004)   3787 - 3790   2004

Thermophotovoltaic systems for civilian and industrial applications in Japan Reviewed

Hiroo Yugami Tohoku University*, Hiromi Sasa Tohoku University*, Masafumi Yamaguchi

Semiconductor science and technology   18   239 - 246   2003

STUDY OF RADIATION RESPONSE ON SINGLE JUNCTION COMPONENT SUBCELLS IN TRIPLE JUNCTION SOLAR CELLS Reviewed

Mitsuru Imaizumi 1999博士修了・JAXA*, Tatsuya Takamoto 1998博士修了・SHARP*, Taishi Sumita JAXA*, Takeshi Ohshima JAERI*, Masafumi Yamaguchi, Sumio Matsuda JAXA*, Akihiko Ohi JAERI*, Tomihiro Kamiya JAERI*

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   599 - 602   2003

Sunshine environment and spectrum analysis for concentrator PV systems in Japan Reviewed

Kenji Araki 大同特殊鋼(株)*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   715 - 721   2003

Influences of spectrum change to 3-junction concentrator cells Reviewed

Kenji Araki 大同特殊鋼(株)*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   707 - 714   2003

Extended distributed model for analysis of non-ideal concentration operation Reviewed

Kenji Araki 大同特殊鋼(株)*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   467 - 473   2003

Novel equivalent circuit model and statistical analysis in parameters identification Reviewed

Kenji Araki 大同特殊鋼(株)*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   457 - 466   2003

Electron spin resonance studies on defects in phosphorus ion-implanted C60 films Reviewed

N. F. Fahim National Research Center*, Nobuaki Kojima, Masafumi Yamaguchi, Yoshio Ohshita, A. E. Eid National Research Center*, N. Dharmarasu (株)国際電気通信基礎技術研究所*

Solar Energy Materials and Solar Cells   75   411 - 420   2003

Generation of interstitial boron by minority-carrier injection Reviewed

Yoshio Ohshita, Tuong Khanh Vu 博士2*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   405 - 409   2003

Photovoltaic effects of a:C/C60/Si (p-i-n) solar cell structures Reviewed

K. L. Narayanan 産業技術総合研究所*, Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   345 - 350   2003

Analysis for superior radiation resistance of InP-based solar cells Reviewed

Masafumi Yamaguchi, Aurangzeb Khan University of South Alabama*, Nethaji Dharmarasu (株)国際電気通信基礎技術研究所*

Solar Energy Materials and Solar Cells   75   285 - 291   2003

Strategies for improving radiation tolerance of Si space solar cells Reviewed

A. Khan University of South Alabama*, Masafumi Yamaguchi, Yoshio Ohshita, N. Dharmarasu (株)国際電気通信基礎技術研究所*, K. Araki 大同特殊鋼(株)*, V. T. Khanh 博士2*, H. Itoh Japan Atomic Energy Research Institute*, T. Ohshima Japan Atomic Energy Research Institute*

Solar Energy Materials and Solar Cells   75   271 - 276   2003

Ⅲ-Ⅴ compound multi-junction solar cells: present and future Reviewed

Masafumi Yamaguchi

Solar Energy Materials and Solar Cells   75   261 - 269   2003

Multi-junction solar cells and novel structures for solar cell applications Reviewed

Masafumi Yamaguchi

Physica E   14   84 - 90   2003

Temperature dependence of electron spin resonance and electrical conductivity in P+-implanted C60 films and their derivatives Reviewed

N. F. Fahim National Research Center*, Nobuaki Kojima, Masafumi Yamaguchi, Yoshio Ohshita, B. N. Barsoum Cairo University*, A. E. Eid National Research Center*

Journal of Applied Physics   93 ( 5 )   2671 - 2675   2003

Fictive-temperature-dependence of photoinduced self-trapped holes in a-SiO2 Reviewed

Masafumi Yamaguchi, Kazuya Saito, A. J. Ikushima*

Physical Review B   68   153204   2003

Radiation-resistant projperies of Ga-doped Si analyzed by DLTS Reviewed

Masafumi Yamaguchi, A. Khan University of South Alabama*, T. K. Vu 博士3*, Yoshio Ohshita, T. Abe Shin-etsu Handotai*

Physica B   340-342   596 - 600   2003

集光式太陽光発電の将来性 Reviewed

Masafumi Yamaguchi

太陽エネルギー   29 ( 5 )   2 - 3   2003

Metastability effects in InGaP solar cells Reviewed

G. C. Sun Universite Pierre et Marie Curie*, J. C. Bourgoin Universite Pierre et Marie Curie*, N. de Angelis Universite Pierre et Marie Curie*, Masafumi Yamaguchi, A. Khan University of South Alabama*, T. Takamoto 1998博士修了・Sharp*, O. Gilard Centre National d'Et*

Solar Energy Materials and Solar Cells   75   293 - 298   2003

Low-energy proton-induced defects in n+/p InGaP solar cells Reviewed

N. Dharmarasu ATR*, Masafumi Yamaguchi, A. Khan University of South Alabama*, T. Takamoto 1998博士修了・Sharp*, T. Ohshima JAERI*, H. Itoh JAERI*, M. Imaizumi 1999博士修了・JAXA*, S. Matsuda JAXA*

Solar Energy Materials and Solar Cells   75   327 - 333   2003

Energy level of minority carrier trap centers induced by light illumination in B-doped Cz-Si solar cells Reviewed

Tuong Khanh Vu 博士3*, Yoshio Ohshita, Yasutaka Yagi 修士2*, Nobuaki Kojima, Masafumi Yamaguchi

Materials Science in Semiconductor Processing   6   551 - 553   2003

Ion Beam Induced Effects in RF Plasma Chemical Vapor Deposition Deposited Hydrogenated Amorphous Carbon Thin Films Reviewed

Kannan L. Narayanan Nagoya Institute of Technology*, Tetsuo Soga Nagoya Institute of Technology*, Yoshio Ohshita, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 2   42 ( 8B )   L1021 - L1024   2003

Silica waveguides fabricated by oxidization of selectively anodized porous silicon Reviewed

Seiichi Nagata*, Shinobu Matsushita ハイテック*, Kazuya Saito, Yoshio Ohshita, Yoshinobu Maeda*, Masafumi Yamaguchi, Akira J. Ikushima*

Applied Physics Letters   82 ( 16 )   2559 - 2561   2003

海外における集光式太陽光発電の開発動向 Reviewed

荒木建次 大同特殊鋼*, Masafumi Yamaguchi

太陽エネルギー   29 ( 5 )   31 - 39   2003

Fabrication of Thin-Film Polycrystalline Silicon Solar Cells by Silane-Gas-Free Process Using Aluminum-Induced Crystallization Reviewed

Tadashi ITO TOYOTA Central Research and Development Laboratories*, Hideoki FUKUSHIMA TOYOTA Central Research and Development Laboratories*, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 1   42 ( 4A )   1526 - 1532   2003

Multijuction Solar Cell Technologies - High Efficiency, Radiation Resistance, and Concentrator Applications Reviewed

T. Takamoto 1998博士修了・SHARP*, Takaaki Agui SHARP*, Kunio Kamimura SHARP*, Minoru Kaneiwa SHARP*, Mitsuru Imaizumi 1999博士修了・JAXA*, Sumio Matsuda JAXA*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   581 - 586   2003

Optical and Electrical Properties of C60/a-C Superlattice Structures for Solar Cell Applications. Reviewed

Nobuaki Kojima, Y. Sugiura 2003学部卒業・アイシン精機*, T. Terayama 学部4*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   697 - 698   2003

HIGH- SPEED GROWTH OF SILICON THIN FILMS BY EBEP-CVD USING SI2H6 Reviewed

Yagi Yasutaka 修士2*, Motegi Hideaki 2001修士修了・矢崎総業*, Yoshio Ohshita, Masafumi Yamaguchi, Nobuaki Kojima

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion, WCPEC-3   1667 - 1670   2003

CONSIDERATION FOR IMPROVING RADIATION-RESISTANCE OF InGaP/GaAs AND InGaP/X/Ge MULTI-JUNCTION SOLAR CELLS Reviewed

Masafumi Yamaguchi, Tatsuya Takamoto 1998博士修了・SHARP*, Aurangzeb Khan University of South Alabama*, Koshi Ando Tottori University*, Masahiro Adachi Tottori University*, Nethaji Dharmarasu ATR International*, Mitsuru Imaizumi 1999博士修了・JAXA*, Sumio Matsuda JAXA*

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   685 - 688   2003

SUPER RADIATION TOLERANCE OF CIGS SOLAR CELLS DEMONSTRATED IN SPACE BY MDS-1 SATELLITE Reviewed

Shirou Kawakita JAXA・Tokyo Institute of Technology*, Mitsuru Imaizumi 1999博士修了・JAXA*, Katsumi Kushiya Showa Shell Sekiyu*, Takeshi Ohshima JAERI*, Masafumi Yamaguchi, Sumio Matsuda JAXA*, Shinichi Yoda JAXA・ Tokyo Institute of Technology*, Tomihiro Kamiy*

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   693 - 696   2003

EFFECTS OF GALLIUM IMPURITY ON RADIATION-RESISTANCE OF Si SINGLE CRYSTAL SPACE SOLAR CELLS Reviewed

Masafumi Yamaguchi, Aurangzeb Khan University of South Alabama*, Tuong Khanh Vu 博士3*, Yoshio Ohshita, Masami Tachibana*, Takao Abe Shin-etsu Handotai Handotai Co.*, Mitsuru Imaizumi 1999博士修了・JAXA*, Sumio Matsuda JAXA*

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   701 - 704   2003

ANALYSIS OF RADIATION RESPONSE OF InGaP, InGaAsP, AND InGaAs SOLAR CELLS BY DISPLACEMENT DAMAGE DOSE APPROACH Reviewed

Nethaji Dharmarasu ATR International*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   730 - 733   2003

STUDY OF THE SPACE FACTOR FOR SPECTRUM-SENSITIVE MJ SOLAR CELL ARRAYS Reviewed

Kenji Araki Daido Steel Co.*, Yoshishige Kemmoku Toyohashi Sozo University*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   2350 - 2353   2003

THEORETICAL STUDIES OF LIGHT INDUCED DEFFECTS IN Cz-Si Reviewed

Yoshio Ohshita, Tuong Khanh Vu 博士3*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion、WCPEC-3   114 - 117   2003

PHOTOCONDUCTIVITY PROPERTIES OF C60 / a-C SUPERLATTICE STRUCTURES AS A NEW MATERIAL FOR ABSORPTION LAYERS Reviewed

Nobuaki Kojima, Yusuke Sugiura 2003学部卒業・アイシン精機*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion, WCPEC-3   130 - 132   2003

CRACKING BUCKY BALLS FOR PV APPLICATIONS Reviewed

Kannan L. Narayanan Nagoya Institute of Technology*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion, WCPEC-3   161 - 164   2003

MATERIAL STUDY FOR THE SOLAR MODULE UNDER HIGHCONCENTRATION UV EXPOSURE Reviewed

Kenji Araki Daido Steel Co.*, Michio Kondo Daido Steel Co.*, Hisafumi Uozumi Daido Steel Co.*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   805 - 808   2003

EXPERIMENTAL PROOF AND THEORETICAL ANALYSIS ON EFFECTIVENESS OF PASSIVE HOMOGENIZERS TO 3J CONCENTRATOR SOLAR CELLS Reviewed

Kenji Araki Daido Steel Co.*, Michio Kondo Daido Steel Co.*, Hisafumi Uozumi Daido Steel Co.*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   853 - 856   2003

POSSIBILITY OF HIGH-EFFICIENCY THIN FILM SILICON SOLAR CELLS BY SiH4-GAS-FREE PROCESS Reviewed

Tadashi Ito TOYOTA Central Research*, Hideoki Fukushima TOYOTA Central Research*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   291 - 294   2003

WHICH IS THE BEST NUMBER OF JUNCTIONS FOR SOLAR CELLS UNDER EVER-CHANGING TERRESTRIAL SPECTRUM? Reviewed

Kenji Araki Daido Steel Co.*, Masafumi Yamaguchi, Michio Kondo Daido Steel Co.*, Hisafumi Uozumi Daido Steel Co.*

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   307 - 310   2003

A GERMANIUM BACK-CONTACT TYPE CELL FOR THERMOPHOTOVOLTAIC APPLICATIONS Reviewed

Tomonori Nagashima Toyota Motor Corporation*, Kenichi Okumura Toyota Motor Corporation*, Kiyohito Murata Toyota Motor Corporation*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   200 - 203   2003

Chemical Beam Epitaxy System for High Efficiency Solar Cell Fabrication. Reviewed

Y. Yagi 修士2*, Yoshio Ohshita, K. Nishimura 修士1*, H. S. Lee*, Nobuaki Kojima, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   117 - 118   2003

Generation Mechanism of Defects Induced by Light Irradiation in B-doped Cz-Si. Reviewed

Yoshio Ohshita, T. K. Vu 博士3*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   167 - 168   2003

Defects in Polycrystalline Silicon Study for High Effciency Solar Cells Application. Reviewed

T. K. Vu 博士3*, Y. Nishikawa 学部4*, Yoshio Ohshita, Kenji Araki Daido Steel Co.*, Nobuaki Kojima, Masami Tachibana*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   239 - 240   2003

Achievement of 28% Efficient and 200Wp Concentrator Module and the Technological Roadmap Towards Realisation of More Than 31% Efficient Modules. Reviewed

K. Araki Daido Steel Co.*, M. Kondo Daido Steel Co.*, H. Uozumi Daido Steel Co.*, N. J. Ekins-Daukes*, Y. Kemmoku Toyohashi Sozo College*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   427 - 428   2003

Super High Efficiency Multi-Junction and Concentrator Solar Cells Reviewed

Masafumi Yamaguchi, T. Takamoto 1998博士修了・SHARP*, K. Araki Daido Steel Co.*

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   497 - 500   2003

Packaging III-V Tandem Solar Cells for Practical Terrestrial Applications Achievable to 27% of Module Efficiency by Conventional Machine Assembly Technology. Reviewed

K. Araki Daido Steel Co.*, M. Kondo Daido Steel Co.*, H. Uozumi Daido Steel Co.*, N. J. Ekins-Daukes*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   503 - 504   2003

Can A Spectrally Robust Multi-Junction Solar Cell Be Made Using Bypass Diodes? Reviewed

N. J. Ekins-Daukes*, K. Araki Daido Steel Co.*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   511 - 512   2003

Analysis of Radiation Response of Triple-Junction Space Solar Cells and Component Sub-Cells. Reviewed

T. Sumita JAXA*, M. Imaizumi 1999博士修了・JAXA*, S. Kuwajima JAXA*, T. Ohshima JAERI*, A. Ohi JAERI*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   563 - 564   2003

Analysis of Radiation Response of Cu(In,Ga)Se2 Thin-Film Solar Cells by Spectral Response Characteristics. Reviewed

S. Kawakita JAXA*, Tokyo Institute of Technology）*, M. Imaizumi 1999博士修了・JAXA*, S. Kuwajima JAXA*, S. Yoda JAXA/ Tokyo Institute of Technology*, T. Ohshima JAERI*, T. Kamiya JAERI*, Masafumi Yamaguchi

Tech. Digest 14th International Photovoltaic Science and Engineering Conference, PVSEC-14   597 - 598   2003

ENERGY LEVEL OF MINORITY CARRIER TRAP CENTERS INDUCED BY LIGHT ILLUMINATION IN B-DOPED Cz-Si SOLAR CELLS Reviewed

Tuong Khanh Vu 博士3*, Yoshio Ohshita, Yasutaka Yagi 修士2*, Nobuaki Kojima, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion、WCPEC-3   1025 - 1027   2003

EFFECTS OF IMPURITIES ON GENERATION OF RADIATION-INDUCED DEFECTS IN Si SINGLECRYSTALS AND SPACE SOLAR CELLS Reviewed

K. Nishimura 修士1*, Masafumi Yamaguchi, O. Anzawa JAXA*, T. K. Vu 博士3*, A. Khan University of South Alabama*, Yoshio Ohshita, T. Abe JAERI*, M. Imaizumi 1999博士修了・JAXA*, T. Ohshima JAERI*

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   603 - 605   2003

DEVELPMENT OF A ROBUST AND HOIGH EFFICIENCYCONCENTRATOR RECEIVER Reviewed

Kenji Araki Daido Steel Co.*, Michio Kondo Daido Steel Co.*, Hisafumi Uozumi Daido Steel Co.*, Masafumi Yamaguchi

Proc. of the 3rd World Conference on Photovoltaic Energy Conversion,WCPEC-3   630 - 633   2003

Self-Aligned Formation of Porous Silicon Membranes Using Si Diaphragm Structures Reviewed

T. Kobayashi アイシン精機(株)*, 大澤　潤, S. Nagata*, 原　民夫, N. Yamaguchi*, Masafumi Yamaguchi

Japanese Journal of Applied Physics.Part 2   41 ( 8B )   L963 - L965   2002.8

Interstitial boron and oxygen related defects as the origin of the deep energy level in Czochralski-grown silicon Reviewed

Yoshio Ohshita, T. K. Vu 博士１*, Masafumi Yamaguchi

Journal of Applied Physics   91 ( 6 )   3741 - 3744   2002.3

Effects of proton irradiation on n+p InGaP solar cells Reviewed

N. Dharmarasu*, A. Khan*, Masafumi Yamaguchi, T. Takamoto Japan Energy Corporation*, T. Ohshima Japan Atomic Energy Research Institute*, H. Itoh Japan Atomic Energy Research Institute*, M. Imaizumi 1999博士修了・NASDA*, S. Matsuda NASDA*

Journal of Applied Physics   91 ( 5 )   3306 - 3311   2002.3

Excimer-laser-irradiation-induced effects in C60 films for photovoltaic applications Reviewed

K. L. Narayanan*, Masafumi Yamaguchi, H. Azuma Toyota Central R&D Laboratories,Inc.*

Applied Physics Letters   80 ( 7 )   1285 - 1287   2002.2

Thermal annealing study of 1 MeV electron-irradiation-induced defects in n+p InGaP diodes and solar cells Reviewed

A. Khan*, Masafumi Yamaguchi, J. C. Bourgoin P.&M. Curie大学*, T. Takamoto 1998博士修了・Japan Energy Corporation*

Journal of Applied Physics   91 ( 4 )   2391 - 2397   2002.2

OXIDATION PROCESS EFFECTS ON LIGHT-DEGRADATION IN B-DOPED Si SOLAR CELLS Reviewed

Tuong Khanh Vu 博士2*, Yoshio Ohshita, Kenji Araki 大同特殊鋼*, Masafumi Yamaguchi

Proceedings 17th European Photovoltaic Solar Energy Conference   1705 - 1707   2002

高効率化および低コスト化を追求する化合物半導体系太陽電池 Reviewed

Masafumi Yamaguchi

PETROTECH   25 ( 3 )   176 - 178   2002

Generation and Annihilation of Boron-Oxygen Related Defects in Boron doped Czochralski grown Si Solar Cells Reviewed

Tuong Khanh Vu 博士２*, Yoshio Ohshita, Kenji Araki 大同特殊鋼*, Masafumi Yamaguchi

Journal of Applied Physics   91 ( 8 )   4853 - 4856   2002

Majority-and minority-carrier deep level traps in proton-irradiated n+/p-InGaP space solar cells Reviewed

Nethaji Dharmarasu*, Masafumi Yamaguchi, Jacques C. Bourgoin Universite Pierre et Marie Curie*, Tatsuya Takamoto 1998博士修了・シャープ*, Takeshi Ohshima JAERI*, Hisayoshi Itoh JAERI*, Mitsuru Imaizumi 1999博士修了・NASDA*, Sumio Matsuda NASDA*

Applied Physics Letters   81 ( 1 )   64 - 66   2002

Effects of ions and electrons in electron-beam-excited plasma assisted CVD on nanocrystalline silicon film properties Reviewed

Yoshio Ohshita, K. Yamaguchi 愛知製鋼*, H. Motegi 矢崎総業/2001修士修了*, Masafumi Yamaguchi

Journal of Crystal Growth   237-239   1394 - 1398   2002

A comprehensive electron paramagnetic resonance study of influence of annealing on defect center in phosphorus ion-implanted C60 films Reviewed

N. F. Fahim National Research Center*, Nobuaki Kojima, Masafumi Yamaguchi, Yoshio Ohshita, A. Eid National Research Center*, B. Barsoum Cairo University*

Materials Science in Semiconductor Processing   5 ( 6 )   483 - 490   2002