Toyota Technological Institute   Professor

2011.10 - 2018.6

Aichi University

2011 - 2012

Osaka University

2010 - 2011

Hiroshima University

2001 - 2003

Toyota Technological Institute

2000.1 - 2011.9

日本電気(株)シリコンシステム研究所

1997 - 1999

日本電気(株)マイクロエレクトロニクス研究所

1989 - 1997

日本電気(株)基礎研究所

1986 - 1989

日本太陽光発電学会 次世代太陽電池セル・モジュール分科会   幹事  

2020.10   

明治大学   再生可能エネルギー研究インスティテュート所員  

2020.8 - 2025.3   

公益財団法人 中部科学技術センター   2019年度中部イノベネット運営委員  

2019.4 - 2020.3   

Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes   Member of the Program Committee  

2019   

PVSEC-27   Fundraising Chair of the Organizing Committee  

2017.11   

日本学術振興会産学協力研究委員会   「結晶加工と評価技術」第145委員会 運営委員  

2017.10 - 2023.3   

国立研究開発法人新エネルギー・産業技術総合開発機構   分野横断的公募事業に係る事前書面審査員  

2017.1 - 2018.3   

PVSEC-26   Member of the International Advisory Committee  

2016.10   

ICCGE-18 & ISSCG-16   Vice Chair of the Local Arrangement Committee  

2016.8   

PVSEC-25 & GPVC2015   Vice Chair of the Technical Program Committee  

2015.11   

国立研究開発法人新エネルギー・産業技術総合開発機構   NEDO技術委員  

2014.10 - 2026.3   

公益財団法人 科学技術交流財団   あいちシンクロトロン光センター技術職員  

2012.12 - 2014.3   

The Forum on the Science and Technology of Silicon Materials 2010   Member of the Organizing Committee  

2010.11   

日本表面真空学会中部支部   幹事  

2006   

光産業技術振興協会   光技術動向調査委員会 太陽光エネルギー分科会 副主査  

2005.4 - 2010.3   

応用物理学会編集委員会   委員  

2005.4 - 2007.3   

日本学術振興会産学協力研究委員会   「次世代の太陽光発電システム」第175委員会 運営委員  

2004.4 - 2020.3   

PVSEC International advisory committee   Member  

2001.8   

EUPVSEC Program committee   Member  

2001.8   

応用物理学会応用電子物性分科会   幹事  

2001 - 2015   

Analysis of Climate Conditions Upon the Driving Distance of Photovoltaics-Powered Vehicles

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

Proceedings of the 40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)   020434   2023.11

Proposal of Solar Cell Modules for Reducing Partial Shading Loss

Kyotaro Nakamura, Chikao Okamoto*, Ryo Ozaki, Yoshio Ohshita, Masafumi Yamaguchi

Proceedings of the 40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)   020312   2023.11

Approaches for III-V/Si Tandem Solar Cells and Comparative Studies on Si Tandem Solar Cells

Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Tatsuya Takamoto*, Taizo Masuda*, Takashi Mabuchi*, Kenichi Okumura*, Nobuaki Kojima, Yoshio Ohshita

Proceedings of the 40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)   020140   2023.11

Overview and Perspective for High-Efficiency Single-Junction Solar Cells Invited Reviewed

Masafumi Yamaguchi, Yoshio Ohshita, Hajime Shibata*, Hitoshi Tampo*, Takehiko Nagai*

Solar RRL   2023   2300308   2023.7

Analysis for Expansion of Driving Distance and CO2 Emission Reduction of Photovoltaic-Powered Vehicles Reviewed

Masafumi Yamaguchi, Taizo Masuda*, Takashi Nakado*, Kazumi Yamada*, Kenichi Okumura*, Akinori Satou*, Yasuyuki Ota*, Kenji Araki*, Kensuke Nishioka*, Nobuaki Kojima, Yoshio Ohshita

IEEE Journal of Photovoltaics   13 ( 3 )   343 - 348   2023.5

Impact of B2H6 plasma treatment on contact resistivity in silicon heterojunction solar cells Reviewed

Kazuhiro Gotoh*, Ryo Ozaki, Motoo Morimura, Aki Tanaka*, Yoshiko Iseki*, Kyotaro Nakamura, Kazuo Muramatsu*, Yasuyoshi Kurokawa*, Yoshio Ohshita, Noritaka Usami*

Japanese Journal of Applied Physics   62   SK1026   2023.4

Novel liquid cobalt precursor for metal atomic layer deposition Reviewed

Yohichiroh Numasawa*, Hideaki Machida*, Masato Ishikawa*, Hiroshi Sudoh*, Yosiharu Hasegawa*, Hyunju Lee*, Yoshio Ohshita

Japanese Journal of Applied Physics   62   SH8002   2023.4

Generation of Oxygen-Related Defects in Crystal Silicon Processed by the RPD Reviewed

Tomohiko Hara, Iori Oura, Takuma Matsuzuki,Yoshio Ohshita

crystals   13 ( 2 )   310   2023.2

Evaluation of Damage in Crystalline Silicon Substrate Induced by Plasma Enhanced Chemical Vapor Deposition of Amorphous Silicon Films Reviewed

Haruki Kojima*, Tappei Nishihara*, Kazuhiro Gotoh*, Noritaka Usami*, Tomohiko Hara*, Kyotaro Nakamura, Yoshio Ohshita, Atsushi Ogura*

ECS Journal of Solid State Science and Technology   12   015003   2023.1

Atomic layer deposition of diethylzinc/zinc oxide on InAs surface quantum dots: Self-clean-up and passivation processes Reviewed

Hanif Mohammadi*, Ronel Christian Intal ROCA, Yuwei Zhang*, Hyunju Lee*, Yoshio Ohshita, Naotaka Iwata, Itaru Kamiya

Applied Surface Science   612   155790   2022.11

Overview and loss analysis of III–V single-junction and multi-junction solar cells Reviewed

Masafumi Yamaguchi, Frank Dimroth*, Nicholas J. Ekins-Daukes*, Nobuaki Kojima,Yoshio Ohshita

EPJ Photovoltaics   13   22   2022.10

Polarization-Type Potential-Induced Degradation in Front-Emitter p-Type and n-Type Crystalline Silicon Solar Cells Reviewed

Seira Yamaguchi*, Sachiko Jonai*, Kyotaro Nakamura, Kazuhiro Marumoto*,Yoshio Ohshita, Atsushi Masuda*

ACS Omega   7 ( 41 )   36277 - 36285   2022.10

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   2200556   2022.9

Analysis of recombination centers near an interface of a metal–SiO₂–Si structure by double carrier pulse deep-level transient spectroscopy Reviewed

Tomohiko Hara, Yoshio Ohshita

AIP Advances   12 ( 9 )   095316   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

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

Effects of SiN_x refractive index and SiO₂ thickness on polarization-type potential-induced degradation in front-emitter n-type crystalline-silicon photovoltaic cell modules Reviewed

Seira Yamaguchi **, Kyotaro Nakamura, Taeko Semba*, Keisuke Ohdaira*, Kazuhiro Marumoto**, Yoshio Ohshita, Atsushi Masuda **

Energy Science & Engineering   10 ( 7 )   2268 - 2275   2022.3

DLTS with Bayesian Inference for Analyzing RPD Induced Defects in Bulk near SiO₂/Si Interface Reviewed

Tomohiko Hara*, Hyunju Lee **, Michihiro Kawanishi, Yoshio Ohshita

ECS Journal of Solid State Science and Technology   11   035002   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

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

Mechanically-stacked and Electrically-connected Two-terminal Tandem Module Reviewed

Kyotaro Nakamura, Yoshio Ohshita

Proceedings of the 38th European Photovoltaic Solar Energy Conference and Exhibition   480 - 482   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

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

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

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

Light Induced Recombination Center at SiO₂/Si Interface by the Reactive Plasma Deposition Reviewed

Tomohiko Hara, Taichi Tanaka, Kazuhito Nakagawa, Yuki Isogai*, Takefumi Kamioka **, Yoshio Ohshita

Electronic Materials Letters   17 ( 5 )   399 - 405   2021.5

Investigation of the Chemical Reaction between Silver Electrodes and Transparent Conductive Oxide Films for the Improvement of Fill Factor of Silicon Heterojunction Solar Cells Reviewed

Tappei Nishihara*, Kazuo Muramatsu**, Kyotaro Nakamura, Yoshio Ohshita, Satoshi Yasuno*, Hiroki Kanai*, Yutaka Hara*, Yusuke Hibino*, Haruki Kojima*, Atsushi Ogura**

ECS Journal of Solid State Science and Technology   10   045009   2021.5

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

Fabrication of Tantalum-Doped Titanium-Oxide Electron-Selective Contacts with High Passivation Quality Reviewed

Seira Yamaguchi*, Hyunju Lee*, Atsushi Ogura*, Atsushi Masuda**, Yoshio Ohshita

ECS Journal of Solid State Science and Technology   10   045009   2021.4

Evaluation of correlation between fill factor and high mobility transparent conductive oxide film deposition temperature in the silicon heterojunction solar cells Reviewed

Tappei Nishihara*, Hiroki Kanai**, Yoshio Ohshita, Kyotaro Nakamura, Takefumi Kamioka**, Tomohiko Hara*, Seira Yamaguchi*, Masato Koharada*, Atsushi Ogura**

Materials Science in Semiconductor Processing   132   105887   2021.4

Improvement in the passivation quality of titanium oxide thin films by doping with tantalum Reviewed

山口　世力, Hyunju Lee **, Atsushi Ogura **, Yoshio Ohshita

Thin Solid Films   720   138509   2021.2

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

Simulation study on laternal minority carrier transport in the surface inversion layer of the p-aSi:H/i-aSi:H/cSi heterojunction solar cell Reviewed

Takefumi Kamioka **, Yutaka Hayashi, Kazuhiro Gotoh **, Tomohiko Hara, Ryo Ozaki, Motoo Morimura*, Ayako Shimizu **, Kyotaro Nakamura, Noritake Usami*, Atsuhi Ogura**,Yoshio Ohshita

Japanese Journal of Applied Physics   60 ( 2 )   026503   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

Transformation of Battery to High Performance Pseudocapacitor by the Hybridization of W₁₈O₄₉ with RuO₂ Nanostructures Reviewed

Lichchhavi*, Hyunju Lee**,Yoshio Ohshita, Amrendra K. Singh*, Parasharam M. Shirage**

Langmuir   37 ( 3 )   1141 - 1151   2021.1

Oxygen Precipitation Behavior in n-Type Cz-Si Related to Carbon Concentration and Crystal Growth Conditions Reviewed

Tappei Nishihara*, Kohei Onishi**,Yoshio Ohshita, Atsushi Ogura **

Journal of Electronic Materials   50 ( 3 )   1474 - 1481   2021.1

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

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   online   1 - 10   2020.9

Influence of emitter position of silicon heterojunction photovoltaic solar cell modules on their potential-induced degradation behaviors Reviewed

山口　世力, Chizuko Yamamoto **,Yoshio Ohshita, Keisuke Ohdaira **, Atsushi Masuda **

Solar Energy Materials and Solar Cells   216   110716   2020.8

Evaluation of plasma induced defects on silicon substrate by solar cell fabrication process Reviewed

Kohei Onishi*, Yutaka Hara*, Tappei Nishihara*, Hiroki Kanai*, Takefumi Kamioka**,Yoshio Ohshita, Atsushi Ogura **

Japanese Journal of Applied Physics   59   071003   2020.6

Evaluation of Sawing Damage for Thin Flexible Silicon Solar Cells Reviewed

Yutaka Hara*, Kohei Onishi*, Ryo Yokogawa*, Tappei Nishihara*, Takefumi Kamioka**, Kyotaro Nakamura, Yoshio Ohshita, Tomoyuki Kawatsu*, Toshiki Nagai*, Noboru Yamada*, Yukio Miyashita*, Atsushi Ogura**

Proceedings of the 2020 IEEE 47th Photovoltaic Specialists Conference (PVSC)   875 - 880   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

Defect Mediated W₁₈O₄₉ Nanorods Bundle for Nonenzymatic Amperometric Glucose Sensing Application Reviewed

Lichchhavi Sinha **, リ　ヒュンジュ, Yoshio Ohshita, Parasharam M. Shirage **

ACS Biomaterials Science & Engineering   6 ( 4 )   1909 - 1919   2020.3

Surface inversion layer effective minority carrier mobility as one of the measures of surface quality of the p-aSi:H/i-aSi:H/cSi heterojunction solar cell Reviewed

Takefumi Kamioka**, Yutaka Hayashi, Kazuhiro Gotoh**, Ryo Ozaki*, Kyotaro Nakamura, Motoo Morimura, Shimako Naitou*, Noritaka Usami*, Atsushi Ogura**, Yoshio Ohshita

Japanese Journal of Applied Physics   59 ( SG )   SGGF06   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

Evaluation of ITO/a-Si Interface Fabricated by RPD Technique Reviewed

Tappei Nishihara*, Takefumi Kamioka*, Hiroki Kanai**, Yoshio Ohshita, Hideki Matsumura*, Satoshi Yasuno*, Ichiro Hirosawa*, Astushi Ogura**

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   2702 - 2704   2020.2

Ultra-Thin Lightweight Bendable Crystalline Si Solar Cells for Solar Vehicles Reviewed

Yoshio Ohshita, Kohei Onishi*, Ryo Yokogawa*, Tappei Nishihara*, Takefumi Kamioka**, Kyotaro Nakamura, Tomoyuki Kawatsu*, Toshiki Nagai*, Noboru Yamada*, Yukio Miyashita*, Atsushi Ogura**

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   1131 - 1134   2020.2

Effects of Different Tunnel Layers on the Performance and Light Stability of Electron-Selective TiO₂ Contacts Reviewed

リ　ヒュンジュ, Yoshio Ohshita

Proceedings of the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)   2696 - 2698   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

Properties of Thermally Evaporated Titanium Dioxide as an Electron-Selective Contact for Silicon Solar Cells Reviewed

Changhyun Lee*, Soohyun Bae*, HyunJung Park*, Dongjin Choi*, Hoyoung Song**, リ　ヒュンジュ, Yoshio Ohshita, Donghwan Kim*, Yoonmook Kang*, Hae-Seok Lee**

Energies   13 ( 3 )   678   2020.2

Passivation Properties of Phosphorus doped Amorphous Silicon Layers for Tunnel Oxide Carrier Selective Contact Solar Cell Reviewed

Changhyun Lee*, Hyunjung Park*, Hoyoung Song**, リ　ヒュンジュ, Yoshio Ohshita, Yoonmook Kang*, Hae-Seok Lee*, Donghwan Kim**

Current Photovoltaic Research   7 ( 4 )   125 - 129   2019.12

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

Sawing Damage Control for Thin Flexible Si Solar Cells Reviewed

Kohei Onishi*, Ryo Yokogawa*, Tappei Nishihara*, Takefumi Kamioka**, Kyotaro Nakamura,Yoshio Ohshita, Tomoyuki Kawatsu*, Toshiki Nagai*, Noboru Yamada*, Yukio Miyashita*, Atsushi Ogura**

Proceedings of the 36th European Photovoltaic Solar Energy Conference and Exhibition   126 - 130   2019.10

Development of Transparent Conductive Oxide for Silicon Heterojunction Solar Cell Reviewed

Kyotaro Nakamura, Kazuo Muramatsu*, Tappei Nishihara*, Atsushi Ogura**,Yoshio Ohshita

Proceedings of the 36th European Photovoltaic Solar Energy Conference and Exhibition   527 - 529   2019.10

Effects of damages induced by indium-tin-oxide reactive plasma deposition on minority carrier lifetime in silicon crystal Reviewed

Takefumi Kamioka*, Yuki Isogai*, Yutaka Hayashi, Yoshio Ohshita, Atsushi Ogura**

AIP Advances   9 ( 10 )   105219   2019.10

Effect of additives in electrode paste of p-type crystalline Si solar cells on potential-induced degradation Reviewed

Sachiko Jonai*, Aki Tanaka*, Kazuo Muramatsu*, Genki Saito**, Kyotaro Nakamura, Yoshio Ohshita, Atsushi Ogura**, Atsushi Masuda**

Solar Energy   188   1292 - 1297   2019.8

Evaluation of Sn-doped indium oxide film and interface properties on a-Si formed by reactive plasma deposition Reviewed

Tappei Nishihara*, Takefumi Kamioka*, Hiroki Kanai**, Yoshio Ohshita, Ichiro Hirosawa*, Atsushi Ogura**

ECS Journal of Solid State Science and Technology   8 ( 6 )   Q101 - Q105   2019.6

Effects of Surface Doping of Si Absorbers on the Band Alignment and Electrical Performance of TiO2-Based Electron-Selective Contacts Reviewed

リ　ヒュンジュ, Takefumi Kamioka*, Noritaka Usami**, Yoshio Ohshita

MRS Advances   4 ( 13 )   769 - 775   2019.3

Selective Emitter n-PERT Solar Cell Using Non Mass Separation Type Ion Implantation Reviewed

Kyotaro Nakamura, Kazuo Muramatsu*, Noboru Yamaguchi**, Yoshio Ohshita

グランド再生可能エネルギー国際会議論文集   47   2019.3

Band profiling of p-Si/ITO interface by Kelvin probe force microscopy under light controlled conditions Reviewed

Fumihiko Yamada, Takefumi Kamioka**, Yoshio Ohshita, 神谷　格

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   3315 - 3318   2018.11 （   ISSN:0160-8371 ）

Evaluation of ITO/a-Si interface properties by hard X-ray photoemission spectroscopy Reviewed

Tappei Nishihara*, Takuto Kojima*, Takuya Hiyama*, Hideki Matsumura*, Takefumi Kamioka**, Yoshio Ohshita, Satoshi Yasuno*, Ichiro Hirosawa*, Atsushi Ogura**

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   2170 - 2172   2018.11 （   ISSN:0160-8371 ）

Potential of Chemical Rounding for the Performance Enhancement of a Monolithic Perovskite/Bifacial N-PERT Si Tandem Cell Reviewed

リ　ヒュンジュ, Inseol Song*, Sang-Won Lee*, Soo Hyun Bae*, Ji Yeon Hyun*, Yoonmook Kang*, Haeseok Lee*, Donghwan Kim*, Atsushi Ogura**, Yoshio Ohshita

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   2039 - 2044   2018.11 （   ISSN:0160-8371 ）

Performance Improvement of Front Junction N-type PERT Solar Cell by Wafer Thinning Reviewed

Kyotaro Nakamura, Tomoyuki Kawatsu*,Takefumi Kamioka**, Yoshio Ohshita

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   1536 - 1539   2018.11 （   ISSN:0160-8371 ）

Effect of ITO Capping Layer on Interface Workfunction of MoOx in ITO/MoOx/SiO2/Si Contacts Reviewed

Takefumi Kamioka**, Yutaka Hayashi, Yuki Isogai*, Kyotaro Nakamura, Yoshio Ohshita, Atsushi Ogura**

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   2024 - 2026   2018.11 （   ISSN:0160-8371 ）

Evaluation of lifetime degradation caused by oxygen precipitation combined with metal contamination in Cz-Si for solar cells Reviewed

Kouhei Onishi*, Takuto Kojima*, Kousuke Kinoshita**, Yoshio Ohshita, Atsushi Ogura**

Proceedings of 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC7)   360 - 362   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 ）

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 ）

Newly Developed Ag Coated Cu Paste for Si Hetero-Junction Solar Cell Reviewed

Kyotaro Nakamura, Kazuo Muramatsu*, Aki Tanaka**, Yoshio Ohshita

Proceedings of the 35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2018)   704 - 706   2018.11

Non Mass Separation Type Ion Implantation System for Bifacial PERT Cell Fabrication Reviewed

Kyotaro Nakamura, Kazuo Muramatsu*, Noboru Yamaguchi**, Yoshio Ohshita

Proceedings of the 35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2018)   375 - 378   2018.11

Potential of Chemical Rounding for the Performance Enhancement of a Pyramid-Textured Bifacial Si Bottom Cell Reviewed

リ　ヒュンジュ, Inseol Song*, Sang-Won Lee*, Soohyun Bae*, Ji Yeon Hyun*, Yoonmook Kang*, Haeseok Lee*, Atsushi Ogura*, Donghwan Kim**, Yoshio Ohshita

Proceedings of the 35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2018)   628 - 632   2018.11

Selective Emitter n-PERT Solar Cell Using Non Mass Separation Type Ion Implantation Reviewed

Kyotaro Nakamura, Kazuo Muramatsu*, Noboru Yamaguchi**, Yoshio Ohshita

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

Potential of chemical rounding for the performance enhancement of pyramid textured p-type emitters and bifacial n-PERT Si cells Reviewed

Inseol Song**, リ　ヒュンジュ, Sang-Won Lee*, Soohyun Bae*, Ji Yeon Hyun*, Yoonmook Kang*, Hae-Seok Lee**, Yoshio Ohshita, Atsushi Ogura*, Donghwan Kim**

Current Applied Physics   18 ( 11 )   1268 - 1274   2018.7

Effects of annealing temperature on workfunction of MoOx at MoOx/SiO2 interface and process-induced damage in indium tin oxide/MoOx/SiOx/Si stack Reviewed

Takefumi Kamioka**, Yutaka Hayashi, Yuki Isogai*, Kyotaro Nakamura, Yoshio Ohshita

Japanese Journal of Applied Physics   57 ( 7 )   076501   2018.6

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

Solar Cells Application of p-type poly-Si Thin Film by Aluminum Induced Crystallization Reviewed

Shota Masuda, Kazuhiro Gotoh, Isao Takahashi, Kyotaro Nakamura*, Yoshio Ohshita, Noritaka Usami*

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

Enhancement of Si Photovoltaic Module by Introducing III-V/Si Hybrid Configurations and Cost Evaluations under Various Cost Ratios of III-V/Si Photovoltaics Reviewed

ワン　ユ チェン, Kenji Araki, Kyotaro Nakamura*, リ　カンファ, 神岡　武文, Nobuaki Kojima, Yoshio Ohshita

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

Carrier Transportation at Novel Silver Paste Contact Reviewed

神岡　武文, Satoshi Kameyama, Kazuo Muramatsu, Aki Tanaka*, 岩田　直高, Kyotaro Nakamura, Atsushi Ogura*, Yoshio Ohshita

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

High quality and thin silicon wafer for next generation solar cells Reviewed

Yoshio Ohshita, Takuto Kojima, Ryota Suzuki, Kosuke Kinoshita, Tomoyuki Kawatsu, Kyotaro Nakamura, Atsushi Ogura*

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

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

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 ）

Effects of Tellurium Oxide in Silver Paste on the Electrical Losses in Silicon Solar Cells Reviewed

Takayuki Aoyama*, Mari Aoki*, Isao Sumita*, Yasushi Yoshino*, Yoshio Ohshita, Atsushi Ogura*

Proceedings of the 33rd European Photovoltaic Solar Energy Conference and Exhibition   657 - 660   2017.11 （ ISBN:3-936338-47-7 ）

Charge-Controllable Mg-Doped AlOx Passivation Layers for p- and n-Type Silicon Reviewed

リ　ヒュンジュ, Fumiya Nishimura*, Haruhiko Yoshida*, 神岡　武文, 岩田　直高, Yoshio Ohshita

Proceedings of the 33rd European Photovoltaic Solar Energy Conference and Exhibition   399 - 401   2017.11 （ ISBN:3-936338-47-7 ）

Impacts of growth orientation and N incorporation on the interface-states and the electrical characteristics of Cu/GaAsN Schottky barrier diodes Reviewed

Chen Dong, Xiuxun Han, Jian Li, Xin Gao*,Yoshio Ohshita

Physica B   527   52 - 56   2017.9

Analysis of interface workfunction and process-induced damage of reactive-plasma-deposited ITO/SiO2/Si stack Reviewed

神岡　武文, Yutaka Hayashi, Yuki Isogai*, Kyotaro Nakamura*, Yoshio Ohshita

AIP ADVANCES   7 ( 9 )   095212   2017.9

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

Role of H₂ supply for Sn incorporations in MOCVD Ge_1−xSn_x epitaxial growth Reviewed

Kohei Suda*, Naomi Sawamoto, Hideaki Machida, Masato Ishikawa, Hiroshi Sudoh*, Yoshio Ohshita, Ichiro Hirosawa, Atsushi Ogura*

Journal of Crystal Growth   468   605 - 609   2017.6

Effects of thermal budget in n-type bifacial solar cell fabrication processes on effective lifetime of crystalline silicon Reviewed

Tomihisa Tachibana*, Kyotaro Nakamura, Atsushi Ogura*, Yoshio Ohshita, Takafumi Shimoda, Isao Masada, Eiichi Nishijima*

AIP Advances   7 ( 4 )   045111   2017.4

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 ）

Excellent Surface Passivation of Crystalline Silicon by Ternary Al_xMg_1-xO_y Thin Films Reviewed

リ　ヒュンジュ, 神岡　武文, Dongyan Zhang*, 岩田　直高, Yoshio Ohshita

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   2931 - 2934   2016.11 （ ISBN:978-1-5090-2724-8 ）

A Study on the Evaluation Method of Glass Frit Paste for Crystalline Silicon Solar Cells Reviewed

Mari Aoki, Takayuki Aoyama, Isao Sumita, Yasushi Yoshino, Atsushi Ogura*,Yoshio Ohshita

Proceedings of the 43th IEEE Photovoltaic Specialists Conference (PVSC43)   2850 - 2853   2016.11 （ ISBN:978-1-5090-2724-8 ）

Efficiency improvement by charged-insulator layers for IBC-SHJ cells Reviewed

神岡　武文, Yutaka Hayashi, Kyotaro Nakamura*, Yoshio Ohshita

Energy Procedia   92   96 - 102   2016.8

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

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

Direct observation of strain in InAs quantum dots and cap layer during molecular beam epitaxial growth using in situ X-ray diffraction Reviewed

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

Journal of Applied Physics   118   185303   2015.11

Direct observation of strain in InAs quantum dots and cap layer during molecular beam epitaxial growth using in situ X-ray diffraction Reviewed

下村憲一 量子界面物性*, 鈴木秀俊 宮崎大学*, Takuo Sasaki 日本原子力研究開発機構*, 高橋正光 日本原子力研究開発機構*, Yoshio Ohshita, 神谷　格

Journal of Applied Physics   118   185303   2015.11

Novel Silver and Copper Pastes for n-Type Bi-Facial PERT Cell Reviewed

Kyotaro Nakamura*, Tetsu Takahashi*, Yoshio Ohshita

Proc. 31st European Photovoltaic Solar Energy Conference and Exhibition   536 - 539   2015.11

The Effects of Annealing Processes on Effective Lifetime in N-Type Crystalline Silicon Reviewed

T. Tachibana*, K. Nakamura*, A. Ogura*, Yoshio Ohshita, T. Shimoda, I. Masada, N. Hayashi, E. Nishijima*

Proc. 31st European Photovoltaic Solar Energy Conference and Exhibition   672 - 674   2015.11

The Current Conduction Mechanism of Novel Silver Thick Film Electrode Reviewed

Tetsu Takahashi*, Tomihisa Tachibana*, 神岡　武文, 岩田　直高,Yoshio Ohshita

Proc. 31st European Photovoltaic Solar Energy Conference and Exhibition   696 - 699   2015.11

Detail Study on Electronic Bonding States on SiN Passivation Film and Interface for Si Solar Cell Applications Reviewed

Y. Yamashita, N. Ikeno, H. Oji, T. Katsumata, K. Kurishima, R. Imai, Y. Suzuki, T. Tachibana*,Yoshio Ohshita, I. Hirosawa, A. Ogura*

Proc. 31st European Photovoltaic Solar Energy Conference and Exhibition   861 - 832   2015.11

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

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

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

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

Plasma Damage Effect on Ultraviolet-Induced Degradation of PECVD SiN_x:H Passivation Reviewed

神岡　武文, Daisuke Takai, Tomihisa Tachibana, Takuto Kojima*, Yoshio Ohshita

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

SiO₂/SiNx Stacking Layer for Rear Surface Passivation of PERC Reviewed

Kyotaro Nakamura, Keitarou Okamoto, Yusuke Kawamoto, Yasushi Yoshino*, Yoshio Ohshita

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

Recombination lifetime estimation at crystalline defects layer induced by SiNx deposition using plasma CVD Reviewed

Tomihisa Tachibana, Takuto Kojima, Daisuke Takai, Atsushi Ogura*, Yoshio Ohshita

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

Raman Spectroscopy Study of Crystalline Damage Induced by PECVD SiN Reviewed

Yoshihiro Yamashita, Norihiro Ikeno, Nagisa Aizawa, Tomihisa Tachibana*, Yoshio Ohshita, Atsushi Ogura*

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

X-ray evaluation of electronic and chemical properties and film structures in SiN passivation layer on crystalline Si solar cells Reviewed

Yoshihiro Yamashita*, Norihiro Ikeno*, Tomihisa Tachibana*, Yoshio Ohshita, Atsushi Ogura*

Japanese Journal of Applied Physics   54   08KD14   2015.7

Simulation of interdigitated back-contact silicon heterojunction solar cells with quantum transport model Reviewed

神岡　武文, Yutaka Hayashi, Kyotaro Nakamura*, Yoshio Ohshita

Japanese Journal of Applied Physics   54   08KD07   2015.7

AlGaAs/InGaAs HEMTs Passivated with Atomic Layer Deposited SiO₂ using Aminosilane Precursors Reviewed

Takayuki Suzuki 電子デバイス*, Yousuke Takigawa 電子デバイス*, 岩田　直高, チョウ　トウエン, Yoshio Ohshita

2015 IEEE International Meeting for Future of Electron Devices, Kansai (IMFEDK)   2015.6

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

Local workfunction mapping of interface on heterojunction Si solar cell using KFM Reviewed

山田　郁彦, 神岡　武文, 立花　福久, 中村京太郎*, Yoshio Ohshita, 神谷　格

The 6th World Conference on Photovoltaic Energy Conversion   2014.11

XPS and XRR Study of Electronic Chemical Properties in Surface SiN Passivation on Crystalline Si Reviewed

Y. Yamashita, N. Ikeno, H. Tokutake*, 立花　福久, Yoshio Ohshita, A. Ogura*

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   459 - 462   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

Evaluation of Interface Recombination Induced by Fire-through Ag Past for High Open Circuit Voltage Reviewed

M. Aoki*, Yoshio Ohshita, T. Takahashi*, 立花　福久, I. Suminta, Y. Takigawa*, 岩田　直高

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   1368 - 1370   2014.11

Roles of Rear n-Type Amorphous Silicon Layer in Silicon Heterojunction Solar Cells - Simulation Study Reviewed

神岡　武文, Yutaka Hayashi, Kyotaro Nakamura*, Yoshio Ohshita

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   1212 - 1213   2014.11

Effects of Texture Structure on Crystalline Damage Induced by SiNx Plasma CVD Reviewed

立花　福久, D. Takai, Y. Yamashita, N. Ikeno, H. Tokutake, K. Nagata, A. Ogura*, Yoshio Ohshita

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   1090 - 1091   2014.11

Concurrent Development All Along Value Chain of Crystalline Si Solar Cell under NEDO in Japan Reviewed

K. Nakamura, T. Sekiguchi, A. Tanizaki, T. Takahashi, K. Kakimoto*, Yoshio Ohshita

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   382 - 385   2014.11

Room-temperature photoluminescence evaluation of small-angle grain boundaries in multicrystalline silicon Reviewed

Masaki Funakoshi*, Norihiro Ikeno*, 立花　福久, Yoshio Ohshita, Koji Arafune*, Atsushi Ogura*

Japanese Journal of Applied Physics   53 ( 11 )   112401   2014.10

Ge homoepitaxial growth by metal–organic chemical vapor deposition using t-C₄H₉GeH₃ Reviewed

Kohei Suda*, Seiya Ishihara*, Naomi Sawamoto*, Hideaki Machida*, Masato Ishikawa*, Hiroshi Sudoh*, Yoshio Ohshita, Atsushi Ogura*

Japanese Journal of Applied Physics   53 ( 11 )   110301   2014.10

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 ）

Evaluation of the Silicon Ingot With Addition of SiCl4 in Atmosphere During Unidirectional Solidification Reviewed

立花　福久, Kuniyuki Sato*, Hiroki Kusunoki*, Shiro Sakuragi*, Yoshio Ohshita, Haruhiko Ono*, Atsushi Ogura*

IEEE JOURNAL OF PHOTOVOLTAICS   4 ( 2 )   581 - 584   2014.3

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

Investigation on antireflection coating for high resistance to potential-induced degradation Reviewed

Ken Mishina*, Atsufumi Ogishi*, Kiyoshi Ueno*, Takuya Doi, Kohjiro Hara*, Norihiro Ikeno*, Daisuke Imai, Tetsuya Saruwatari, Makoto Shinohara*, Toshiharu Yamazaki*, Atsushi Ogura*, Yoshio Ohshita, Atsushi Masuda*

Japanese Journal of Applied Physics   53 ( 3 )   03CE01   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

Inline Ion Doping System for High Efficiency Low Cost Si Solar Cell Reviewed

Yoshinobu Murakami*, Tomohiro Soga*, Kyotaro Nakamura*, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   1225 - 1227   2013.12

Simplified Bifacial Perl Cell~Newly Fabrication Process Suitable for Mass Production~ Reviewed

Kyotaro Nakamura*, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   1248 - 1250   2013.12

High Efficiency Si Solar Cell Fabrication Process for Next Generation Turnkey Cell Production Line Reviewed

Kyotaro Nakamura*, Mari Aoki*, Isao Sumita*, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   1998 - 2000   2013.12

Simplified L-BSF Fabrication Process Using Screen Printing Method Reviewed

Mari Aoki*, Kyotaro Nakamura*, Hideki Akimoto*, Chieko Kikuchi*, Mike F Baker*, Koichi Inaba*, Norio Saito*, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   2034 - 2036   2013.12

Study of Silicon Nitride Film for Rear Surface Passivation Reviewed

Ken Mishina*, Atsufumi Ogishi*, Takuto Kojima*, Mari Aoki*, Daisuke Imai*, Tetsuya Saruwatari*, Kyotaro Nakamura*, Isao Sumita*, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   2044 - 2046   2013.12

Al Fire Through for Rear Contacts in PERC Cell with Al₂O₃ Passivation Reviewed

立花　福久, N. Ikeno*, M. Aoki*, Yoshio Ohshita, A. Ogura*

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   2063 - 2065   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

Role of i-aSi:H Layers in aSi:H/cSi Heterojunction Solar Cells Reviewed

Yutaka Hayashi, Debin Li*, Atsushi Ogura*, Yoshio Ohshita

IEEE JOURNAL OF PHOTOVOLTAICS   3 ( 4 )   1149 - 1155   2013.10 （   ISSN:2156-3381 ）

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 ）

2. In situ three-dimensional X-ray reciprocal-space mapping of GaAs epitaxial thin films on Si(001) Reviewed

M. Takahasi JAEA*, Y. Nakata JAEA*, H. Suzuki 宮崎大学*, K. Ikeda 半導体*, M. Kozu JAEA*, ウェン　フー, Yoshio Ohshita

Journal of Crystal Growth   378   34   2013.9

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 ）

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 ）

NOVEL SCREEN PRINTING TECHNOLOGY TO MAKE HIGH-ASPECT-RATIO EELCTRODES AND TO FILL A PASTE INTO A HOLE FOR METAL-WRAP-THROUGH (MWT) Reviewed

Uichi Itoh*, Hideo Tokuhisa*, Manabu Yoshida*, Isao Sumita*, Mari Aoki*, Yoshio Ohshita

Proc. 27th European Photovoltaic Solar Energy Conference and Exhibition   825 - 827   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 ）

Evaluation of GexSbyTez Film Grown by Chemical Vapor Deposition Reviewed

Seiti Hamada*, Takafumi Horiike*, Tomohiro Uno*, Masato Ishikawa*, Hideaki Machida*, Yoshio Ohshita, Atsushi Ogura*

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   289 - 292   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 ）

EBIC Study on Metal Contamination at Intra Grain Defects in Multicrystalline Silicon for Solar Cells Reviewed

Takashi Sameshima*, Naoto Miyazaki*, Yuki Tsuchiya*, Tomihisa Tachibana*, Yoshio Ohshita, Koji Arafune*, Atsushi Ogura*

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   129 - 132   2012.7 （ ISBN:978-3-03785-442-6   ISSN:0255-5476 ）

Evaluation of Silicon Substrates Fabricated by Seeding Cast Technique Reviewed

Tomihisa Tachibana*, Takashi Sameshima*, Takuto Kojima*, Koji Arafune*, Koichi Kakimoto*, Yoshiji Miyamura*, Hirofumi Harada*, Takashi Sekiguchi*, Yoshio Ohshita, Atsushi Ogura*

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   133 - 136   2012.7 （ ISBN:978-3-03785-442-6   ISSN:0255-5476 ）

Evaluation of Optical Properties for Nanocrystal Si Dot Layers Fabricated by CVD as a Function of Size Reduction Reviewed

Y. Mizukami*, D. Kosemura*, M. Takei*, Y. Numasawa*, Yoshio Ohshita, A. Ogura*

Materials Science Forum (Volume725) Defects-Recognition, Imaging and Physics in Semiconductors XIV   725   251 - 254   2012.7 （ ISBN:978-3-03785-442-6   ISSN:0255-5476 ）

Interaction between Metal Impurities and Small-Angle Grain Boundaries on Recombination Properties in Multicrystalline Silicon for Solar Cells Reviewed

Takashi Sameshima*, Naoto Miyazaki*, Yuki Tsuchiya*, Hiroki Hashiguchi*, Tomihisa Tachibana*, Takuto Kojima*, Yoshio Ohshita, Koji Arafune*, Atsushi Ogura*

Applied Physics Express   5 ( 4 )   042301   2012.3

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

Impact of Light-Element Impurities on Crystalline Defect Generation in Silicon Wafer Reviewed

Tomihisa Tachibana*, Takashi Sameshima*, Takuto Kojima*, Koji Arafune*, Koichi Kakimoto*, Yoshiji Miyamura*, Hirofumi Harada*, Takashi Sekiguchi*, Yoshio Ohshita, Atsushi Ogura*

Japanese Journal of Applied Physics   51 ( 2 )   02BP08   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

EVALUATION OF CRYSTALLINE DEFECTS IN SILICON INGOTS FABRICATED BY SEEDING CAST GROWTH Reviewed

T. Tachibana*, T. Sameshima*, N. Miyazaki*, T. Kojima*, K. Arafune*, K. Kakimoto*, Y. Miyamura*, H. Harada, T. Sekiguchi*, Yoshio Ohshita, A. Ogura*

Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition   1920 - 1922   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 ）

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 ）

INFLUENCE OF THE ALUMINUM IN GLASS FRITS OF FRONT-SIDE SILVER PASTE ON PV ELECTRICAL PROPERTIES Reviewed

Y. Kawamoto*, Y. Yoshino*, K. Sugimura*, T. Kojima*, Yoshio Ohshita

Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition   1603 - 1606   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 ）

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

Behavior of nickel silicide in multi-crystalline silicon for solar cells Reviewed

Tomihisa Tachibana*, Takashi Samejima*, Koji Arafune*, Yoshio Ohshita, Atsushi Ogura*

Physics Procedia   11   163 - 166   2011.2 （   ISSN:1875-3892 ）

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

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

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

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

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

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

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

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

Microscopic Distributions of Light Elements and Their Precipitates in Multicrystalline Silicon for Solar Cells Reviewed

Haruhiko Ono*, Takahide Ishizuka*, Chihiro Kato*, Koji Arafune*, Yoshio Ohshita, Atsushi Ogura*

Japanese Journal Applied of Physics   49 ( 11 )   110202   2010.11 （   ISSN:0021-4922 ）

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

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

Structural Change by Annealing Process at Σ9 Grain Boundaries in Multicrystalline Silicon Substrate for Solar Cells Reviewed

Tomihisa Tachibana*, Junichi Masuda*, Atsushi Ogura*, Yoshio Ohshita, Koji Arafune*

Electrochemical and Solid-State Letters   13 ( 7 )   B79 - B82   2010.5 （   ISSN:1099-0062 ）

Evaluation of multi-crystalline silicon substrates for solar cells by Raman spectroscopy Reviewed

Tomihisa Tachibana*, Junichi Masuda*, Atsushi Ogura*, Yoshio Ohshita, Koji Arafune*

ECS Transactions   25 ( 15 )   33 - 39   2010.5 （   ISSN:1938-5862 ）

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 )   S431 - S434   2010.5 （   ISSN:1567-1739 ）

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 )   S431 - S434   2010.5

Chemical Vapor Deposition of GeSbTe Thin Films for Next-Generation Phase Change Memory Reviewed

Hideaki Machida*, Seichi Hamada*, Takafumi Horiike*, Masato Ishikawa*, Atsushi Ogura*, Yoshio Ohshita, Takayuki Ohba*

Japanese Journal of Applied Physics   49 ( 5 )   05FF06   2010.5

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

Photoluminescence Analysis of Iron Contamination Effect in Multicrystalline Silicon Wafers for Solar Cells Reviewed

Michio Tajima*, Masatoshi Ikebe*, Yoshio Ohshita, Atsushi Ogura*

Journal of ELECTRONIC MATERIALS   39 ( 6 )   747 - 750   2010.3

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

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

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

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

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

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

Study of the Degradation of p–n Diode Characteristics Caused by Small-Angle Grain Boundaries in Multi-Crystalline Silicon Substrate for Solar Cells Reviewed

Tomihisa Tachibana 明治大*, Junichi Masuda 明治大*, Keita Imai 明治大*, Atsushi Ogura 明治大*, Yoshio Ohshita, Koji Arafune 兵庫県立大*, Michio Tajima ISAS/JAXA*

Japanese Journal of Applied Physics   48   121202   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

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

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

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*, Yoshio Ohshita

Proceedings 33rd IEEE Photovoltaic Specialist Conference   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

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

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

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

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

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

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

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

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

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

Ni-silicide precursor for gate electrodes Reviewed

M. Ishikawa TRI Chemi Meiji Univ.*, I. Muramoto TRI Chemi*, H. Machida TRI Chemi*, S. Imai Meiji Univ*, A. Ogura Meiji Univ*, Yoshio Ohshita

Thin Solid Films   515   4980 - 4982   2007

Chemical vapor deposition of NiSi using Ni(PF3)4 and Si3H8 Reviewed

M. Ishikawa Meiji University・Tri Chemical Laboratories Inc.*, I. Muramoto Tri Chemical Laboratories Inc.*, H. Machida Tri Chemical Laboratories Inc.*, S. Imai Meiji University*, A. Ogura Meiji University*, Yoshio Ohshita

Thin Solid Films   515 ( 22 )   8246 - 8249   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

Composition Control of Ni Silicide by Chemical Vapor Deposition UsingNi(PF3)4andSi3H8 Reviewed

MasatoISHIKAWA TriChemical, Meiji Univ.*, IkuyoMURAMOTO TriChimical*, HideakiMACHIDA TriChimical*, Yoshio Ohshita, SatoshiIMAI Meiji Univ.*, AtsushiOGURA Meiji Univ.*

Japanese Journal of Applied Physics.Part 1   46 ( 2 )   474 - 477   2007

Orientation Dependence of Silicon Oxidation Ratio in High-Pressure Water Vapor Reviewed

Naoya Yamamoto IHI, Meiji University*, Yoshio Ohshita, Atsushi Ogura Meiji University*, Atsushi Yoshinouchi IHI*

Japanese Journal of Applied Physics.Part 1   46 ( 12 )   7619 - 7621   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

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

Analysis of Oxygen Incorporation Process in Unidirectionally Solidified Multicrystalline Silicon for Solar Cells Reviewed

H. Matsuo 九大*, R. Bairava Ganesh 九大*, S. Nakano 九大*, L. Liu 九大*, Y. Matsuo 九大*, Y. Kangawa 九大*, K. Arafune*, Yoshio Ohshita, K. Kakimoto 九大*

ProceedingsThe Forum on the Science and Technology of Silicon Materials 2007   360 - 366   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

Improvement in Characteristics of Thin Film Transistors upon High-Pressure Steam Annealing Reviewed

Naoya Yamamoto IHI, Meiji University*, Tomoyuki Watanabe IHI*, Miyuki Masaki IHI*, Ryusuke Kawakami IHI*, Takahiko Murayama IHI*, Yoshio Ohshita, Atsushi Ogura Meiji University*, Atsushi Yoshinouchi IHI*

Japanese Journal of Applied Physics.Part 1   46 ( 11 )   7208 - 7211   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

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

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

Analysis of Intra-Grain Defects in Multicrystalline Silicon Wafers by Photoluminescence Mapping and Spectroscopy Reviewed

H. Sugimoto JAXA*, M. Inoue JAXA Meiji Univ.*, M. Tajima JAXA*, A. Ogura Meiji Univ.*, Yoshio Ohshita

Japanese Journal of Applied Physics.Part 2   45 ( 25 )   L641 - L643   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

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

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

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

Electrical Properties and Structural Defects in Lattice Mismatched InGaAs Solar Cells Reviewed

T. Sasaki*, K. Arafune*, H. S. Lee*, N. J. Ekins-Daukes*, S. Tanaka*, W. Metzger*, M. J. Romero*, K. Jones*, Yoshio Ohshita

Proceedings 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion   795 - 798   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

HfO₂ and Hf1_-xSi_xO₂ Thin Films Grown by Metal-Organic CVD Using Tetrakis(diethylamido)hafnium Reviewed

Yoshio Ohshita, A. Ogura Miji Univ.*, M. Ishikawa Tri Chem. Lab.*, T. Kada Tri Chem. Lab.*, A. Hoshino Tri Chem. Lab.*, T. Suzuki Tri Chem. Lab.*, H. Machida Tri Chem. Lab.*, K. Soai Tokyou Univ. Science*

Chemical Vapor Deposition   12 ( 2 )   130 - 135   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

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

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

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

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

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

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

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 thermal cycle annealing on reduction of defect density in lattice-mismatched InGaAs solar cells Reviewed

Takuo Sasaki, K. Arafune*, H. S. Lee LG Elect. Inst. Tech.*, N.J. Ekins-Daukes Univ. Sydney*, S. Tanaka Nagoya Univ.*, Nobuaki Kojima, Yoshio Ohshita

Physica B   376-377   626 - 629   2006

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

Volatile CVD precursor for Ni film: cyclopentadienylallylnickel Reviewed

T. Kada TRI Chemical Lab.*, M. Ishikawa TRI Chemical Lab.*, H. Machida TRI Chemical Lab.*, A. Ogura Meiji Univ.*, Yoshio Ohshita, K. Soai Tokyo Univ. Science*

Journal of Crystal Growth   275   e1115 - e1119   2005

Surface reactions in Ni MOCVD using cyclopentadienylallylnickel as a precursor Reviewed

M. Ishikawa TRI Chemical Lab.*, T. Kada TRI Chemical Lab.*, H. Machida TRI Chemical Lab.*, K. Soai Tokyo Univ. Science*, A. Ogura Meiji Univ.*, Yoshio Ohshita

Journal of Crystal Growth   275   e1121 - e1125   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

Ni Thin Film Deposition from Tetrakistrifluorophosphine-Nickel Reviewed

Yoshio Ohshita, M. Ishikawa TRI Chemical Lab.*, T. Kada TRI Chemical Lab.*, H. Machida TRI Chemical Lab.*, A. Ogura Meiji Univ.*

Japanese Journal of Applied Physics.Part 2   44 ( 10 )   L315 - L317   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

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

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

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

Ni-Silicide Precursor for Gate Electrode Reviewed

M. Ishikawa TRI Chemical Lab.*, I. Muramoto TRI Chemical Lab.*, H. Machida TRI Chemical Lab.*, S. Imai Meiji Univ.*, A. Ogura Meiji Univ.*, H. Suzuki*, Yoshio Ohshita

Proceedings 2005 International Symposium on Dry Process   239 - 240   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

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

(In)GaAsN Solar Cells Grown by Chemical Beam Epitaxy (CBE) for Multijunction Applications 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*, T. Kawahigashi 学部4*, Nobuaki Kojima, Yoshio Ohshita

Tech. Digest 15th International Photovoltaic Science and Engineering Conference   1214 - 1215   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

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

Vapor Pressure of Hf and Si Precursors for HfXSi1_XO2 Deposition Evaluated by a Saturated Gas Technique Reviewed

H. Machida TRI Chemical Lab.*, T. Kada TRI Chemical Lab.*, M. Ishikawa TRI Chemical Lab.*, A. Ogura NEC*, Yoshio Ohshita

Japanese Journal of Applied Physics.Part 1   43 ( 3 )   966 - 967   2004

Ni Precursor for Chemical Vapor Deposition of NiSi Reviewed

M. Ishikawa TRI Chemical Lab.*, T. Kada TRI Chemical Lab.*, H. Machida TRI Chemical Lab.*, Yoshio Ohshita, A. Ogura NEC*

Japanese Journal of Applied Physics.Part 1   43 ( 4B )   1833 - 1836   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

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

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

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

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

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

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

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

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

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

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

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

Tris-diethylamino-silane Decomposition due to Tetrakis-diethylamido-hafnium in Hf1-xSixO2 Chemical Vapor Deposition Reviewed

Yoshio Ohshita, Atsushi Ogura NEC*, Masato Ishikawa TRI Chemical*, Takeshi Kada TRI Chemical*, Hideaki Machida TRI Chemical*

Japanese Journal of Applied Physics.Part 2   42 ( 6A )   L578 - L580   2003

Evaluation of HfO2 film structures deposited by metal-organic chemical vapor deposition using Hf(N(C2H5)2)4/O2 gas system Reviewed

Atsushi Ogura NEC*, Kimihiko Ito NEC*, Yoshio Ohshita, Masato Ishikawa TRI Chemical*, Hideaki Machida TRI Chemical*

Thin Solid Films   441   161 - 164   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

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

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

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

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

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

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

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

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

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

LOW TEMPERATURE ELECTRON PARAMAGNETIC RESONANCE STUDIES AND SPIN SUSCEPTIBILITY OF PHOSPHORUS-IMPLANTED C60 FILMS FOR SOLAR CELLS Reviewed

N. F. Fahim National Research Center*, Nobuaki Kojima, Masafumi Yamaguchi, Yoshio Ohshita, A. E. Eid National Research Center*, M. Khalil National Research Center*, N. Yossef National Research Center*

Proceedings 29th IEEE Photovoltaic Specialists Conference   1194 - 1197   2002

EFFECTS OF IMPURITIES ON GENERATION OF RADIATION-INDUCED DEFECTS IN Si SINGLE CRYSTALS AND SPACE SOLAR CELLS Reviewed

T. K. Vu 博士2*, Masafumi Yamaguchi, O. Anzawa NASDA*, A. Khan University of South Alabama*, Yoshio Ohshita, T. Abe Shin-etsu Handotai Co*, M. Imaizumi 1999博士修了・NASDA*, S. Matsuda NASDA*, T. Ohshima JAERI*, H. Itoh JAERI*

Proceedings Of the 5th International Workshop on Radiation Effects on Semiconductor Devices for Space Application   109 - 112   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

MOCVD precursors for Ta- and Hf-compound films Reviewed

H. Machida TRI Chemical Laboratory,Inc.*, A. Hoshino TRI Chemical Laboratory,Inc.*, T. Suzuki TRI Chemical Laboratory,Inc.*, A. Ogura NEC Corporation*, Yoshio Ohshita

Journal of Crystal Growth   237-239   586 - 590   2002

Using tetrakis-diethylamido-hafnium for HfO2 thin-film growth in low-pressure chemical vapor deposition Reviewed

Yoshio Ohshita, Atsushi Ogura NEC Corp.*, Asako Hoshino TRI Chemical Laboratory Inc.*, Shigeki Hiiro TRI Chemical Laboratory Inc.*, Toshie Suzuki TRI Chemical Laboratory Inc.*, Hideaki Machida TRI Chemical Laboratory Inc.*

Thin Solid Films   406   215 - 218   2002

Hf1_x SixO2 deposition by metal organic chemical vapor deposition using the Hf(NEt2)4/SiH(NEt2)3/O2 gas system Reviewed

Yoshio Ohshita, Atsushi Ogura NEC Corporation*, Masato Ishikawa TRI Chemical Laboratory Inc.*, Asako Hoshino TRI Chemical Laboratory Inc.*, Shigeki Hiiro TRI Chemical Laboratory Inc.*, Toshie Suzuki TRI Chemical Laboratory Inc.*, Hideaki Machida TRI Chemical Laboratory Inc.*

Thin Solid Films   416   208 - 211   2002

Effects of deposition conditions on step-coverage quality in low-pressure chemical vapor deposition of HfO2 Reviewed

Yoshio Ohshita, A. Ogura NEC*, A. Hoshino TRI Chemical Lab. Inc.*, T. Suzuki TRI Chemical Lab. Inc.*, S. Hiiro TRI Chemical Lab. Inc.*, H. Machida TRI Chemical Lab. Inc.*

Journal of Crystal Growth   235   365 - 370   2002

Role of the impurities in production rates of radiation-induced defects in silicon materials and solar cells Reviewed

A. Khan*, Masafumi Yamaguchi, Yoshio Ohshita, N. Dharmarasu*, K. Araki*, T. Abe Japan Atomic Energy Research Institute*, M. Imaizumi NASDA*, S. Matsuda 1999博士修了・NASDA*

Journal of Applied Physics   90 ( 13 )   1170 - 1178   2001.8

Electrical and optical properties of the B+ and P+ implanted C60 thin films Reviewed

N. Dharmarasu*, T. Sakai Ｈ１２修士修了*, Nobuaki Kojima, Masafumi Yamaguchi, Yoshio Ohshita, K. L. Narayanan*

Journal of Applied Physics   89 ( 1 )   318 - 322   2001.1

ESR STUDY OF STRUCTURAL DEFECT FORMATION IN P+-IMPLANTED AND ANNEALED C60 FILMS Reviewed

N. F. Fahim*, Nobuaki Kojima, Masafumi Yamaguchi, Yoshio Ohshita, N. Dharmarasu*, T. Sakai 2000修士修了・イムラ材料研究所*

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   121 - 122   2001

Fabrication of C60/Amorphous Carbon Superlattice Structures Reviewed

Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc International Symposium on Nanonetwork Materials 2001   349 - 352   2001

HfO2 growth of by low-pressure chemical vapor deposition using the Hf(N(C2H5)2)4/O2 gas system Reviewed

Yoshio Ohshita, A. Ogura NEC*, A. Hoshino TRI Chemical Lab. Inc.*, S. Hiiro TRI Chemical Lab. Inc.*, H. Machida TRI Chemical Lab. Inc.*

Journal of Crystal Growth   233   292 - 297   2001

Generation of Interstitial Boron by Minority-Carrier Injection Reviewed

Yoshio Ohshita, T. K. Vu 博士1*, Masafumi Yamaguchi

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   135 - 136   2001

Conversion Efficiency Estimate of Thin Film Polycrystalline Silicon Solar Cells Reviewed

H. Fukushima Toyota Central R&D Labs.*, T. Ito Toyota Central R&D Labs.*, K. Yamaguchi*,Yoshio Ohshita, Masafumi Yamaguchi

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   431 - 432   2001

THE GENERATION AND ANNIHILATION OF DEFECT-INDUCED BY MINORITY CARRIER INJECTION IN CZ-GROWN Si SOLAR CELLS Reviewed

T. K. Vu 博士１*,Yoshio Ohshita, A. Khan*, K. Araki*, Masafumi Yamaguchi

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   199 - 200   2001

Strategies for Improving Radiation Tolerance of Si Space Solar Cells Reviewed

A. Khan*, Masafumi Yamaguchi, Yoshio Ohshita, N. Dharmarasu*, K. Araki*, T. K. Vu 博士１*, T. Abe Shin-Etsu Handotai Co.*, H. Itoh Japan Atomic Energy Research Institute*, T. Ohshima Japan Atomic Energy Research Institute*, M. Imaizumi 1999博士修了・National Space Development Agency of Japan*

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   301 - 302   2001

Effects of Electrons and Ions Used in Electron-Beam-Excited Plasma-Assisted CVD on Nanocrystalline Silicon Film Properties Reviewed

H. Motegi 修士2*,Yoshio Ohshita, K. Yamaguchi*, Masafumi Yamaguchi

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   443 - 444   2001

OXIDATION PROCESS EFFECTS ON LIFETIME DEGRADATION Reviewed

T. K. Vu*, Yoshio Ohshita, K. Araki*, Masafumi Yamaguchi

Tech. Digest 12th Int. Photovoltaic Science and Engineering Conference   637 - 638   2001

LPCVD of TaCN Thin Film for Barrier Layer in Cu Interconnection Reviewed

A. Hoshino TRI Chemical Laboratory Inc.*, T. Suzuki TRI Chemical Laboratory Inc.*, S. Hiiro TRI Chemical Laboratory Inc.*, H. Machida TRI Chemical Laboratory Inc.*, A. Ogura NEC Corp.*, Yoshio Ohshita

Advanced Metallization for ULSI Applications   2000

Post Annealing Studies of C60 Ion Implanted Thin Films Reviewed

N. Dharmarasu*, K. L. Narayanan*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

MRS 2000 Fall Meeting   2000

Influence of Hydrogen, Boron, and Ion Energy on the Structure of Microcrystalline Slicon in Plasam-Assisted Chemical Vapor Deposition Reviewed

Yoshio Ohshita, K. Okitsu*, M. Imaizumi*, K. Yamaguchi*, Masafumi Yamaguchi, T. Hara*, T. Ito Toyota Central R&D Labs*, H. Fukushima Toyota Central R&D Labs*, M. Ryoji Kawasaki Heavy Industries Inc.*, S. Fujii(Kawasaki Heavy Industries Inc.)、K. Kawamura(Chubu Electric)*

28th IEEE Photovoltaic Specialists Conference   849 - 852   2000

Low-pressure chemical vapor deposition of TaCN films by pyrolysis of ethylamido-tantalum Reviewed

Yoshio Ohshita, Atsushi Ogura NEC Corporaion*, Asako Hoshino TRI Chemical Laboratory Inc.*, Shigeki Hiiro TRI Chemical Laboratory Inc.*, Hideaki Machida TRI Chemical Laboratory Inc.*

Journal of Crystal Growth   220   604 - 609   2000

Migration of the Aluminium Enhanced crystal growth process from quartz to glass using EBEP-CVD Reviewed

M. Boreland*, K. Yamaguchi 愛知製鋼*,Yoshio Ohshita, Masafumi Yamaguchi

28th IEEE Photovoltaic Specialists Conference   272 - 275   2000

Minority-Carrier Injection Induced Degradation in Cz-Grown Si Solar Cells Reviewed

T. K. Vu 修士２*, Yoshio Ohshita, A. Khan*, K. Araki 大同特殊鋼*, Masafumi Yamaguchi

The 3rd Korea-Japan Joint Seminar on Photovoltaics   133 - 137   2000

Aluminium Enhanced Crystal Growth of Thin Film Polysilicon on Low Temperature Corning 1737 Glass using EBEP-CVD Reviewed

M. Boreland*, K. Yamaguchi 愛知製鋼*,Yoshio Ohshita, Masafumi Yamaguchi

The 3rd Korea-Japan Joint Seminar on Photovoltaics   259 - 266   2000

Effect of the Eletric Potential on Electron Beam Excited Plasma CVD Reviewed

K. Okitsu*, Yoshio Ohshita, M. Imaizumi*, K. Yamaguchi*, Masafumi Yamaguchi, T. Ito Toyota Central R&D Labs*, H. Fukushima Toyota Central R&D Labs*, M. Ryoji Kawasaki Heavy Industries Inc.*, S. Fujii Kawasaki Heavy Industries Inc.*, K. Kawamura Chubu Electric Power Co.*

16th European Photovoltaic Solar Enegy Conference   1   907 - 910   2000

Approach to The Carbon-Based Superlattice Structure Solar Cell Reviewed

Nobuaki Kojima, O. Goetzberger 元PD研究員*, Yoshio Ohshita, Masafumi Yamaguchi

Proc.28th IEEE Photovoltaic Specialists Conference   873 - 875   2000

The Effects of Boron and Phosphorous Ion Implantation in C60 Thin Films Reviewed

T. Sakai Ｈ１２修士修了*, N. Dharmarasu*, O. Goetzberger 元ＰＤ研究員*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

Proc.28th IEEE Photovoltaic Specialists Conference   948 - 950   2000

Solar Cells – New Aspects and Solutions

ブザイリ ブザジ, Hidetoshi Suzki*, Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi, 他学外者*（Chapter 23: Investigation of Lattice Defects in GaAsN Grown by Chemical Beam Epitaxy Using Deep Level Transient Spectroscopy）

InTech  2011.11 

太陽電池の基礎と応用　シリコンから有機・量子まで

山口　真史, M.A.グリーン*, 大下　祥雄, 小島　信晃

丸善株式会社  2010.7 

太陽電池の基礎と応用

山口　真史, 大下　祥雄, 他97名*（第Ⅰ部総論　1総論　1.2太陽電池の種類とエネルギー変換効率の現状pp.9-12、第II部太陽電池の基礎と応用　3シリコン太陽電池　3.5結晶評価技術　3.5.4結晶評価：μ-XRFならびにμ-XAFS測定pp.70-71、6III-V族化合物半導体太陽電池、6.5多接合セルpp.207-215、6.8宇宙応用pp.227-230）

（株）培風館  2010.7 

高効率太陽電池の開発と応用

山口　真史, 大下　祥雄, 小島　信晃, 他学外者１１名*（第1章　総論－高効率太陽電池への期待pp.1-7 第2章　太陽電池の高効率化技術pp.8-25 第3章　高効率太陽電池の基礎pp.26-42 第6章　宇宙用太陽電池　1．宇宙用太陽電池の動向 pp.148-158 第7章　新型太陽電池・材料　2．新材料InGaAsN pp.214-224　4．III-V化合物／シリコンとモノリシック pp.233-247 第8章　高効率太陽電池の応用　3．自動車応用 pp.260-267）

シーエムシー出版  2009.11  （ ISBN:978-4-7813-0150-1 ）

最新太陽電池技術の徹底検証・今後の展開 : 製造・開発および実用化、高効 率化に向けた

大下　祥雄, 他４６名*（第２部各種太陽電池の最新技術動向　第１章シリコン系太陽電池　第５節単結晶シリコン太陽電池　pp.70-78）

情報機構  2008.11 

太陽電池２００８／２００９　急拡大する市場と新技術

山口　真史, 大下　祥雄, 小島　信晃（第５章基礎から学ぶ太陽電池pp.207-251）

日経ＢＰ社  2008.6  （ ISBN:978-4-8222-1348-0 ）

Strain-Relaxation Analysis during Temperature Drop Process after Growth of GaAs/Si Hetero-Structure International conference

Nobuaki Kojima, Yuito Yasukochi, Yoshio Ohshita

41st European Photovoltaic Solar Energy Conference (EUPVSEC2024)  ( Austria Center Vienna, Vienna, Austria )   2024.9 

Overview for Tandem Solar Cell R&D Activities in Japan International conference

Masafumi Yamaguchi, Tatsuya Takamoto*, Kyotaro Nakamura, Ryo Ozaki, Hiroyuki Juso*, Nobuaki Kojima, Yoshio Ohshita

41st European Photovoltaic Solar Energy Conference (EUPVSEC2024)  ( Austria Center Vienna, Vienna, Austria )   2024.9 

結晶シリコン太陽電池における電極周辺応力の温度依存評価(Ⅱ)

長谷部 光紀*, 横川 凌*, 中村 京太郎, 大下 祥雄, 山田 昇*, 小椋 厚志*

第85回応用物理学会秋季学術講演会  ( 朱鷺メッセほか2会場＆オンライン )   2024.9 

低温硬化型電極ペーストと透明導電膜の界面評価

箕輪 卓哉*, 西原 達平*, Lee Hyunju*, 大下 祥雄, 村松 和郎*, 小椋 厚志*

第85回応用物理学会秋季学術講演会  ( 朱鷺メッセほか2会場＆オンライン )   2024.9 

（招待）Siタンデム太陽電池の高効率化と車載応用 Invited

山口 真史、中村 京太郎、尾崎 亮、小島 信晃、大下 祥雄

第85回応用物理学会秋季学術講演会-有機系vs無機化合物系－シンポジウム－薄膜太陽電池バトルロワイアル  ( 朱鷺メッセほか2会場＆オンライン )   2024.9 

(Invited) Development of high efficiency Si tandem solar cells and modules for vehicle integrated photovoltaics Invited International conference

Masafumi Yamaguchi, Tatsuya Takamoto*, Hiroyuki Juso*, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita

Global Photovoltaic Conference 2024 (GPVC2024)  ( Daejeon Convention Center, Daejeon, Korea )   2024.8 

Low temperature ALD of SnO2 thin film as In-free electron transport layer International conference

Takuya Minowa*, Yoshio Ohshita, Toshinori Numata*, Hyunju Lee*, Hideaki Machida*, Masaki Ando*, Atsushi Ogura*

31st Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2024.7 

Investigation of RPD-Induced Defects at SiO2/Si Interface and in Si Crystal Using DLTS and HAXPES International conference

Y. Ohshita, T. Hara*, T. Nishihara*, S. Yasuno*, A. Ogura*

31st Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2024.7 

Investigating PECVD-Induced Defects in Silicon Bulk Using Deep Level Transient Spectroscopy International conference

Subhash Chand Yadav, Tomohiko Hara*, Hyunju Lee*, Yoshio Ohshita

31st Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2024.7 

Characterization of contact resistance and band structures of Ag-coated Cu paste International conference

Takuya Minowa*, Tappei Nishihara*, Hyunju Lee*, Yoshio Ohshita, Kazuo Muramatsu*, Atsushi Ogura*

31st Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2024.7 

（招待）部分日影に強い太陽電池モジュールの提案 Invited

中村 京太郎, 岡本 親扶*, 太田 靖之*, 山口 真史, 大下 祥雄

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  ( 広島国際会議場+オンライン )   2024.7 

Effectiveness of the Concentrating Photovoltaics (CPV) Toward TW-Scale PV Production International conference

Masafumi Yamaguchi, Kenji Araki*, Yasuyuki Ota*, Kensuke Nishioka*, Yuchao Zhang*, Brett Hallam*, Nobuaki Kojima, Yoshio Ohshita

52nd IEEE Photovoltaic Specialists Conference (PVSC52)  ( Seattle Convention Center, Seattle, WA, USA )   2024.6 

Reciprocal Space Mapping of MBE-grown GaAs/2D-GaSe on Si(111) Substrate for Rapid Epitaxial Lift Off International conference

Nobuaki Kojima, Shunya Furuta, Yoshio Ohshita

52nd IEEE Photovoltaic Specialists Conference (PVSC52)  ( Seattle Convention Center, Seattle, WA, USA )   2024.6 

Properties of defects and charge centers in SiO2/Si of CSC solar cells induced by reactive plasma deposition International conference

Yoshio Oshita, Tomohiko hara*, Tappei Nishihara*, Satoshi Yasuno*, Atsushi Ogura*

52nd IEEE Photovoltaic Specialists Conference (PVSC52)  ( Seattle Convention Center, Seattle, WA, USA )   2024.6 

Enhancement of Near-infrared Light Absorption by Nanoimprinted Light Trapping Structure Implemented into Si Heterojunction Solar Cells International conference

Yasuyoshi Kurokawa*, Yoshiko Iseki*, Kazuhiro Gotoh*, Satoru Miyamoto*, Ryo Ozaki, Kyotaro Nakamura, Yoshio Ohshita, Noritaka Usami*

52nd IEEE Photovoltaic Specialists Conference (PVSC52)  ( Seattle Convention Center, Seattle, WA, USA )   2024.6 

33.7% Efficiency Si Tandem Solar Cell Modules International conference

Masafumi Yamaguchi, Tatsuya Takamoto*, Hiroyuki Juso*, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita

52nd IEEE Photovoltaic Specialists Conference (PVSC52)  ( Seattle Convention Center, Seattle, WA, USA )   2024.6 

結晶Siウェーハのテクスチャサイズと丸め処理による三次元柔軟性への影響

井手 康貴*, 西原 達平*, 中村 京太郎, 大下 祥雄, 河津 知之*, 長井 俊樹*, 山田 昇*, Pham Phuong Trang*, 小椋 厚志*

2024年第71回応用物理学会春季学術講演会  ( 東京都市大学世田谷キャンパス＋オンライン )   2024.3  応用物理学会

結晶シリコン太陽電池における電極周辺応力の温度評価

長谷部 光紀*, 井手 康貴*, 横川 凌*, 中村 京太郎, 大下 祥雄, 山田 昇*, 小椋 厚志*

2024年第71回応用物理学会春季学術講演会  ( 東京都市大学世田谷キャンパス＋オンライン )   2024.3  応用物理学会

(Plenary) Technology Trend of High Efficiency Solar Cells Invited International conference

Yoshio Ohshita

International Workshop on “Energy Conversion and Sustainable Future”  ( Indian Institute of Technology Indore, India )   2024.1 

Approaches to High-Efficiency III-V/Si and Perovskite/Si Tandem Solar Cells International conference

Masafumi Yamaguchi, Tatsuya Takamoto*, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita

2023 MRS Fall Meeting & Exhibit  ( Hynes Convention Center and Sheraton Boston Hotel, USA & Online )   2023.11 

Three dimensional DLTS analysis using machine learning for evaluating process-induced defects in crystal Si solar cells International conference

Tomohiko Hara, Yoshio Ohshita

34th International Photovoltaic Science and Engineering Conference (PVSEC-34)   ( Shenzhen World Exhibition & Convention Center, China )   2023.11 

Approaches for High-efficiency Si Tandem Solar Cells and Modules International conference

Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Tatsuya Takamoto*, Nobuaki Kojima, Yoshio Ohshita

34th International Photovoltaic Science and Engineering Conference (PVSEC-34)   ( Shenzhen World Exhibition & Convention Center, China )   2023.11 

NH-related donor and acceptor defects in InGaAsN grown by Chemical Beam Epitaxy International conference

Takaya Tsukamoto, Hirotaka Tamashiro, Yoshio Ohshita, Nobuaki Kojima

Annual Meeting of the Japan Society of Vacuum and Surface Science 2023  ( Nagoya Congress Center, Aichi, Japan )   2023.10 

層状GaSe/In2Se3薄膜のエピタキシャル成長における基板ステップの影響

藤田絢也, 小島信晃, 大下祥雄

第15回スマートエネルギー技術研究センターシンポジウム  ( 豊田工業大学 豊田喜一郎記念ホール )   2023.10 

キャリア選択型コンタクト太陽電池における透明導電膜形成時のプラズマプロセス誘起欠陥

木村圭汰, 原 知彦, 大下祥雄, 西原達平*, 小椋厚志*

第15回スマートエネルギー技術研究センターシンポジウム  ( 豊田工業大学 豊田喜一郎記念ホール )   2023.10 

InGaAsN中のドナー、アクセプター性NH複合欠陥

塚本壮哉, 玉城大天, 小島信晃, 大下祥雄

第15回スマートエネルギー技術研究センターシンポジウム  ( 豊田工業大学 豊田喜一郎記念ホール )   2023.10 

Analysis of Climate Conditions Upon the Driving Distance of Photovoltaics-Powered Vehicles International conference

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

40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)  ( Lisbon Congress Centre, Lisbon, Portugal )   2023.9 

Approaches for III-V/Si Tandem Solar Cells and Comparative Studies on Si Tandem Solar Cells International conference

Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Tatsuya Takamoto*, Taizo Masuda*, Takashi Mabuchi*, Kenichi Okumura*, Nobuaki Kojima, Yoshio Ohshita

40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)  ( Lisbon Congress Centre, Lisbon, Portugal )   2023.9 

省Ag低温硬化電極ペーストの評価

箕輪 卓哉*, 西原 達平*, 横川 凌*, Lee Hyunju*, 大下 祥雄, 村松 和郎*, 小椋 厚志*

第84回応用物理学会秋季学術講演会  ( 熊本城ホール他3会場 )   2023.9 

Proposal of Solar Cell Modules for Reducing Partial Shading Loss International conference

Kyotaro Nakamura, Chikao Okamoto*, Ryo Ozaki, Yoshio Ohshita, Masafumi Yamaguchi

40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)  ( Lisbon Congress Centre, Lisbon, Portugal )   2023.9 

Influence of Surface Texturing on Three-Dimensional Flexibility of c-Si Wafer International conference

Koki Ide*, Tappei Nishihara*, Kyotaro Nakamura, Yoshio Ohshita, Tomoyuki Kawatsu*, Toshiki Nagai*, Noboru Yamada*, Hayato Kobayashi*, Atsushi Ogura*

40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)  ( Lisbon Congress Centre, Lisbon, Portugal )   2023.9 

GaAs(001)微傾斜基板のステップ構造がGaSe/In2Se3薄膜のエピタキシャル方位に与える影響

藤田 絢也, 小島 信晃, 大下 祥雄

第84回応用物理学会秋季学術講演会  ( 熊本城ホール他3会場 )   2023.9 

Effects of Carbon and Oxygen in Si on Degradation of Carrier Selective Contact Cell Performance International conference

Yoshio Ohshita, Keita Kimura, Tomohiko Hara

40th European Photovoltaic Solar Energy Conference (EUPVSEC2023)  ( Lisbon Congress Centre, Lisbon, Portugal )   2023.9 

Improved Near-infrared Light Management with W-doped In2O3/Ag Rear Contacts in Silicon Heterojunction Solar Cells for Tandem Solar Cell Applications International conference

Hyunju Lee*, Shiyu Zhang*, Tappei Nishihara*, Yoshio Ohshita, Atsushi Ogura*

Global Photovoltaic Conference 2023 (GPVC2023)  ( Kimdaejung Convention Center, Gwangju, Korea )   2023.9 

（招待）キャリア選択型太陽電池における結晶シリコン中に形成される酸素関連欠陥 Invited

大下 祥雄

半導体の結晶成長と加工および評価に関する産学連携委員会第2回研究会  ( 明治大学 駿河台キャンパス )   2023.8 

Thermal stabilities of oxygen related defects induced by reactive-plasma deposition in carrier selective contact solar cells International conference

Yoshio Ohshita, Tomohiko Hara, Yuto Ifuji, Taichi Tanaka

30th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2023.8 

Evaluation of Novel Ag-Saving Low-Temperature Curing Electrode Paste Using Ag-Coated Cu Particles Mixed with Conventional Ag International conference

Takuya Minowa*, Tappei Nishihara*, Ryo Yokogawa, Hyunju Lee*, Yoshio Ohshita, Kazuo Muramatsu*, Atsushi Ogura*

30th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2023.8 

DLTS analysis for RPD-induced defects near passivation layer /Si interface in carrier selective contact solar cells International conference

Tomohiko Hara, Yoshio Ohshita

30th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes  ( Beaver Run Resort, Breckenridge, Colorado, USA )   2023.8 

2D-GaSe/In2Se3成膜における基板ステップ端構造の影響

藤田 絢也, 小島 信晃, 大下 祥雄

第20回「次世代の太陽光発電システム」シンポジウム   ( 京都テルサ＋オンライン )   2023.6 

各種太陽電池およびモジュールの損失解析

山口 真史, 柴田 肇*, 反保 衆志*, 永井 武彦*, 大下 祥雄

第20回「次世代の太陽光発電システム」シンポジウム   ( 京都テルサ＋オンライン )   2023.6 

Zr-doped In2O3film for the interlayer of perovskite/crystalline silicon tandem solar cells International conference

Tappei Nishihara*, Hyunju Lee*, Ryuji Kaneko*, Yoshio Ohshita, Atsushi Wakamiya*, Atsushi Masuda*, Atsushi Ogura*

50th IEEE Photovoltaic Specialists Conference (PVSC-50)  ( Puerto Rico Convention Center, San Juan, Puerto Rico )   2023.6 

2D-GaSe/InxSey Layer for Rapid ELO GaAs Technique International conference

Nobuaki Kojima, Yoshio Ohshita, Masafumi Yamaguchi

50th IEEE Photovoltaic Specialists Conference (PVSC-50)  ( Puerto Rico Convention Center, San Juan, Puerto Rico )   2023.6 

Recombination Center Defects Induced by TCO Reactive Plasma Deposition in Carrier Selective Contact Solar Cells International conference

Yoshio Ohshita, Tomohiko Hara, Taichi Tanaka, Keita Kimura, Yuto Ifuji

50th IEEE Photovoltaic Specialists Conference (PVSC-50)  ( Puerto Rico Convention Center, San Juan, Puerto Rico )   2023.6 

Analysis for effects of temperature rise of solar cell modules upon the driving distance of photovoltaics-powered vehicles International conference

Masafumi Yamaguchi, Taizo Masuda*, Tsutomu Tanimoto*, Yosuke Tomita*, Yasuyuki Ota*, Christian Thiel*, Anastasios Tsakalids*, Arnulf Jaeger-WAldau*, Takashi Nakado*, Kenji Araki*, Kensuke Nishioka*, Tatsuya Takamoto*, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita

50th IEEE Photovoltaic Specialists Conference (PVSC-50)  ( Puerto Rico Convention Center, San Juan, Puerto Rico )   2023.6 

Evaluation of process damage to crystalline silicon by deposition of transparent conductive oxide films International conference

Haruki Kojima*, Tappei Nishiraha*, Yuta Ito*, Hyunju Lee*, Kazutoshi Gotoh*, Noritaka Usami*, Tomohiko Hara, Kyotaro Nakamura, Yoshio Ohshita, Atsushi Ogura*

50th IEEE Photovoltaic Specialists Conference (PVSC-50)  ( Puerto Rico Convention Center, San Juan, Puerto Rico )   2023.6 

透明導電膜の成膜による結晶シリコンへのプロセスダメージの評価

小島遥希*, 西原達平*, 伊藤佑太*, Lee Hyunju*, 後藤和泰*, 宇佐美徳隆*, 原知彦, 中村　京太郎, 大下　祥雄, 小椋厚志*

2023年第70回応用物理学会春季学術講演会  ( 上智大学四谷キャンパス＋オンライン )   2023.3  応用物理学会

単結晶Siウェーハのテクスチャによる三次元柔軟性への影響

井手康貴*, 西原達平*, 中村　京太郎, 大下　祥雄, 河津知之*, 長井俊樹*, 山田昇*, 小林勇人*, 小椋厚志*

2023年第70回応用物理学会春季学術講演会  ( 上智大学四谷キャンパス＋オンライン )   2023.3  応用物理学会

多接合よびSiタンデム太陽電池の損失解析と高効率化の動向

山口　真史, 中村　京太郎, 尾崎亮, 小島　信晃, 大下　祥雄

2023年第70回応用物理学会春季学術講演会 シンポジウム 化合物薄膜太陽電池の研究開発動向  ( 上智大学四谷キャンパス＋オンライン )   2023.3  応用物理学会

Diethylzinc passivation of InAs surface quantum dots

Hanif Mohammadi*, Ronel Christian Intal ROCA, Hyunju Lee*, Naotaka Iwata, Yoshio Ohshita, Itaru Kamiya

2023年春季第70回応用物理学関係連合講演会  ( 上智大学四谷キャンパス＋オンライン )   2023.3  応用物理学会

Effect of Initial Growth Process on Residual Strain in GaAs/Si International conference

Yuito Yasukochi, Nobuaki Kojima, Yoshio Ohshita

Korea-Japan University Joint Workshop on PV  ( Korea University, Seoul, Korea )   2023.3 

N-H Related Donors and Acceptors in InGaAsN International conference

Hirotaka Tamashiro, Nobuaki Kojima, Yoshio Ohshita

Korea-Japan University Joint Workshop on PV  ( Korea University, Seoul, Korea )   2023.3 

Development of High-efficiency Si Tandem Solar Cells for Vehicle Integrated Photovoltaics International conference

Kyotaro Nakamura, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita, Taizo Masuda*

7th International Conference on Advances in Functional Materials(AFM2023)  ( The Kyushu University, Centennial Hall, Fukuoka, Japan )   2023.1  American Association for Advances in Functional Materials LLC, BK21 Four HRD Physics Division, Sungkyunkwan University, Korea

Potential of Si tandem solar cells for PV-powered vehicle applications International conference

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

2022 MRS Fall Meeting & Exhibit  ( Hynes Convention Center and Sheraton Boston Hotel, USA & Online )   2022.12  Materials Research Society (MRS)

Downconverting Mn/Yb Codoped CsPbCl3 Nanocrystals for Silicon-Based Tandem Solar Cell Application International conference

Hyunju Lee*, Yoshio Ohshita, Atsushi Ogura*

2022 MRS Fall Meeting & Exhibit  ( Hynes Convention Center and Sheraton Boston Hotel, USA & Online )   2022.11  Materials Research Society (MRS)

Effective Near-Infrared Light Management in Silicon Heterojunction Solar Cells for Perovskite/Silicon Tandem Solar Cell Application International conference

Yoshio Ohshita, Hyunju Lee*, Atsushi Ogura*

2022 MRS Fall Meeting & Exhibit  ( Hynes Convention Center and Sheraton Boston Hotel, USA & Online )   2022.11  Materials Research Society (MRS)

Generation of deep level defect related to oxygen by reactive plasma deposition International conference

Tomohiko Hara, Takuma Matsuzuki, Iori Oura, Yoshio Ohshita

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Effect of initial growth process on residual strain in GaAs/Si International conference

Yuito Yasukochi, Nobuaki Kojima, Yoshio Ohshita

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Mobility improvement of CBE-grown InGaAsN by using vicinal GaAs(001) substrate International conference

Hirotaka Tamashiro, Nobuaki Kojima, Yoshio Ohshita

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Approaches for High-efficiency and Low-cost Si Tandem Solar Cells International conference

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

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Near-infrared light management in silicon heterojunction solar cells for perovskite/silicon tandem cell application International conference

Hyunju Lee*, Tappei Nishihara*, Shiyu Zhang*, Yoshio Ohshita, Atsushi Ogura*

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Inorganic lead halide perovskite nanocrystals for quantum cutting Si solar cell application: effect of anion exchange on PLQY International conference

Tomoya Yamada, Hyunju Lee*, Yoshio Ohshita, Nobuaki Kojima

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Comparison of polarization-type potential-induced degradation in p-type and n-type front-emitter crystalline silicon photovoltaic cell modules International conference

Seira Yamaguchi*, Sachiko Jonai*, Kyotaro Nakamura Kazuhiro Marumoto*, Yoshio Ohshita, Atsushi Masuda*

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

Improvement of contact resistivity by boron delta-doping in p-type amorphous silicon surface International conference

Kazuhiro Gotoh*, Ryo Ozaki, Motoo Morimura, Aki Tanaka*, Yoshiko Iseki*, Kyotaro Nakamura, Kazuo Muramatsu*, Yasuyoshi Kurokawa*, Yoshio Ohshita, Noritaka Usami*

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33)  ( Nagoya Congress Center, Nagoya, Aichi, Japan )   2022.11  The Japan Photovoltaic Society

車載用高効率・低コストSiタンデム太陽電池の検討

山口　真史, 中村　京太郎, 尾崎 亮, 小島　信晃, 大下　祥雄, 高本 達也*, 内田 史朗*, 増田 泰造*

電子情報通信学会 電子部品・材料研究会  ( 信州大学 長野(工学)キャ ンパス+オンライン )   2022.10  電子情報通信学会

Oxygen Related Recombination Centers Induced by RPD ITO Deposition Process in CSC Solar Cells International conference

Toimohiko Hara, Iori Oura, Yoshio Ohshita

8th World Conference on Photovoltaic Energy Conversion (WCPEC-8)  ( Milano Convention Centre, Italy & Online )   2022.9  WIP

Overview and loss analysis of III-V single-junction and multi-junction solar cells International conference

Masafumi Yamaguchi, Frank Dimroth*, John Geisz*, Nicholas J. Ekins-Daukes*, Nobuaki Kojima, Yoshio Ohshita

8th World Conference on Photovoltaic Energy Conversion (WCPEC-8)  ( Milano Convention Centre, Italy & Online )   2022.9  WIP

Analysis for the potential of high-efficincy and low-cost vehicle-integrated photovoltaics International conference

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

8th World Conference on Photovoltaic Energy Conversion (WCPEC-8)  ( Milano Convention Centre, Italy & Online )   2022.9  WIP

車載用Siタンデム太陽電池の損失解析

山口　真史, 尾崎 亮, 中村　京太郎, 小島　信晃, 大下　祥雄, 高本 達也*、増田 泰造*

2022年第83回応用物理学会秋季学術講演会  ( 東北大学川内北キャンパス+オンライン )   2022.9  応用物理学会

GaAs(001)微傾斜基板上InGaAsNのキャリア移動度の温度依存性解析

玉城 大天, 小島　信晃, 大下　祥雄

2022年第83回応用物理学会秋季学術講演会  ( 東北大学川内北キャンパス+オンライン )   2022.9  応用物理学会

Si上GaAs成膜において初期成長過程が残留歪の異方性に与える影響

安河内 唯人, 小島　信晃, 大下　祥雄

2022年第83回応用物理学会秋季学術講演会  ( 東北大学川内北キャンパス+オンライン )   2022.9  応用物理学会

2端子型ペロブスカイト/結晶Siタンデム太陽電池の中間層としてのZr添加In2O3膜の検討

西原 達平*、Lee Hyunju*, 大下　祥雄, 小椋 厚志*

2022年第83回応用物理学会秋季学術講演会  ( 東北大学川内北キャンパス+オンライン )   2022.9  応用物理学会

PL enhancement of InAs surface quantum dots by ex situ DEZ/ZnO passivation capping

Hanif Mohammadi*, Ronel Christian Intal ROCA, Yuwei Zhang*, Hyunju Lee*, Naotaka Iwata, Yoshio Ohshita, Itaru Kamiya

2022年第83回応用物理学会秋季学術講演会  ( 東北大学川内北キャンパス（オンライン） )   2022.9  応用物理学会

Electrical property investigation of the SiO2/Si interface processed by reactive plasma deposition International conference

Tomohiko Hara, Tappei Nishihara*, Tomoya Yamada, Yuto Ifuji, Yuito Yasukouchi, Hirotaka Tamashiro, Daiki Nakanishi*, Satoshi Yasuno*, Hyunju Lee*, Yoshio Ohshita, Atsushi Ogura*

The 19th International Conference on Defects-Recognition, Imaging and Physics in Semiconductors (DRIP19)  ( Online )   2022.8  The DRIP XIX Executive Committee and the JSPS 145th Committee on Processing and Characterization of Crystal

GaAs/Si成膜において初期成長過程が残留歪に与える影響

安河内 唯人, 小島　信晃, 大下　祥雄

第19回「次世代の太陽光発電システム」シンポジウム  ( 金沢市文化ホール+オンライン )   2022.6  日本太陽光発電学会

車載用高効率Siタンデム太陽電池の研究

山口　真史, 中村　京太郎, 尾崎 亮, 小島　信晃, 大下　祥雄, 高本 達也*、増田 泰造*

第19回「次世代の太陽光発電システム」シンポジウム  ( 金沢市文化ホール+オンライン )   2022.6  日本太陽光発電学会

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第19回「次世代の太陽光発電システム」シンポジウム  ( 金沢市文化ホール+オンライン )   2022.6  日本太陽光発電学会