Sharp Corporation

2002.4 - 2012.12

Sharp Corporation

1990.4 - 1999.4

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

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

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

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

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

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

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

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

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

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

Effect of a SiO₂ film on the potential-induced degradation of n-type front-emitter crystalline Si photovoltaic modules Reviewed

Tomoyasu Suzuki **, 山口　世力, Kyotaro Nakamura, Atsushi Masuda*, Keisuke Ohdaira**

Japanese Journal of Applied Physics   59 ( SC )   SCCD02   2019.11

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

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

Universal explanation for degradation by charge accumulation in crystalline Si photovoltaic modules with applying high voltage Reviewed

Sachiko Jonai**, Kyotaro Nakamura, Atsushi Masuda**

Applied Physics Express   12 ( 10 )   101003   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

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

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 ）

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

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

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

Charge-Controllable Mg-Doped AlOx for the Passivation of High Efficiency Silicon Solar Cells

Hyunju LEE, Fumiya Nishimura, Haruhiko Yoshida, Takefumi Kamioka, Naotaka Iwata, Kyotaro Nakamura, Yoshio Ohshita

Global Photovoltaic Conference 2017 (GPVC2017)   2017.3

Development of an AFM/KFM System Capable of Local Workfunction Mapping of Solar Cells under Light Illumination

Fumihiko Yamada, Takefumi Kamioka, Kyotaro Nakamura, Yoshio Ohshita, Itaru Kamiya

The 26th International Photovoltaic Science and Engineering Conference (PVSEC-26)   2016.10

Effects of growth conditions and carbon on oxygen precipitation in Cz silicon

Takuto Kojima, Ryouta Suzuki, Kyotaro Nakamura, Atushi Ogura, Yoshio Ohshita, Eichi Nishijima, Isao Masada, Shoji Tachibana

The 26th International Photovoltaic Science and Engineering Conference (PVSEC-26)   2016.10

Novel silver paste to n- and p-layers for fabricating high efficiency crystalline Si solar cells

Takefumi Kamioka, Tetsu Takahashi, Kazuo Muramatsu, Aki Tanaka, Naotaka Iwata, Kyotaro Nakamura, Atsushi Ogura, Yoshio Ohshita

The 26th International Photovoltaic Science and Engineering Conference (PVSEC-26)   2016.10

P-type Bi-facial PERT Solar Cell using Less Than 100 μm thick Cz Wafer and Cu Paste

Kyotaro Nakamura, Tomoyuki Kawatsu, Kazuo Muramatsu, Yoshio Ohshita

The 26th International Photovoltaic Science and Engineering Conference (PVSEC-26)   2016.10

Workfunction of transition metal oxides in carrier-selective contact stacks: Device simulation and Kelvin force microscopy studies

Takefumi Kamioka, Yutaka Hayashi, Fumihiko Yamada, Kyotaro Nakamura, Yoshio Ohshita

The 26th Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes   2016.8

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

Takefumi Kamioka, Yutaka Hayashi, Kyotaro Nakamura, Yoshio Ohshita

Energy Procedia   2016.8

PECVD-SiNx:H Growth-Induced Defects in Crystalline Si

Takefumi Kamioka, Hyunju Lee, Kyotaro Nakamura, Yoshio Ohshita

The 18th International Conference on Crystal Growth and Epitaxy (ICCGE-18)   2016.8

Thin Wafer Crystalline Silicon Solar Cells using Advanced Technologies

Yoshio Ohshita, Kyotaro Nakamura, Atsushi Ogura

The 26th Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes   2016.8

Next generation of high-efficient heterojunction crystalline silicon solar cells

Takefumi Kamioka, Yutaka Hayashi, Kyotaro Nakamura, Yoshio Ohshita

Collaborative Conference on 3D & Materials Research (CC3DMR) 2016   2016.6

Efficiency Improvement by Charged-Insulator Layers for IBC-SHJ Cells

T. Kamioka, Y. Hayashi, K. Nakamura, Y. Ohshita

6th International Conference on Crystalline Silicon Photovoltaics 2016   2016.3

Effects of light soaking and thermal treatment on PECVD-SiNx passivation on n-type Si

T. Kamioka, T. Iwahashi, H. Lee, Y. Sato, K. Nakamura, Y. Ohshita

9th International Conference on Plasma-Nano Technology & Science   2016.3

R&D of next generation heterojunction crystalline Si solar cells Invited

T. Kamioka, Y. Hayashi, K. Nakamura, Y. Ohshita

The Energy Materials and Nanotechnology (EMN) Photovoltaics Meeting   2016.1

Mono Crystalline Si PERC using Less Than 100 μm-thick Wafer by MWS Slicing Reviewed

K. Nakamura, A. Tanizaki, K. Okamoto, Y. Kawamoto, Y. Ohshita

Abstracts of 25th International Photovoltaic Science & Engineering Conference   2015.11

High-efficiency and low-cost crystalline silicon solar cell R&D by universities' network of intelligent technologies Reviewed

Yoshio Ohshita, Kyotaro Nakamura, Atushi Ogura

Abstracts of 25th International Photovoltaic Science & Engineering Conference   2015.11

Novel Silver and Copper Pastes for N-type Bi-Facial PERT Cell Reviewed

Kyotaro Nakamura, Tetsu Takahashi, Yoshio Ohshita

Proc. 31st European PV Solar Energy Conference and Exhibition   2015.9

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

Takefumi Kamioka, Yutaka Hayashi, Kyotaro Nakamura, Yoshio Ohshita

JAPANESE JOURNAL OF APPLIED PHYSICS   54 ( 8 )   2015.8 （   ISSN:0021-4922   eISSN:1347-4065 ）

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

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

Proc. 42nd IEEE Photovoltaic Specialists Conference   2015.6

Development of Heterojunction Back Contact Si Solar Cells Reviewed

Junichi Nakamura, Naoki Asano, Takeshi Hieda, Chikao Okamoto, Hiroyuki Katayama, Kyotaro Nakamura

IEEE JOURNAL OF PHOTOVOLTAICS   4 ( 6 )   1491 - 1495   2014.11 （   ISSN:2156-3381 ）

R&D on Ultimate Wafer-Based Si Solar Cells under NEDO in Japan Reviewed

Kyotaro Nakamura, Takashi Sekiguchi, Akira Tanizaki, Koichi Kakimoto, Atsushi Ogura, Yoshio Ohshita

Technical Digest of 6th World Conferenceon Photovoltaic Energy Conversion   2014.11

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

Takashi Sekiguchi, Akira Tanizaki, Tetsu Takahashi, Koichi Kakimoto, Yoshio Ohshita

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition   2014.9

Development of Hetero-junction Back Contact Si Solar Cell toward 25%

Junichi Nakamura, Kenji Kimoto, Naoki Asano, Takeshi Hieda, Naoki Koide, Hiroyuki Katayama, Yuhsuke Fukuoka

Technical Digest of 23rd International Photovoltaic Science and Engineering Conference & Solar Energy Exhibition   #1569   2013.10

Quantum Effect at Front Layer Stack in HIT Cell

Takefumi Kamiooka, Yutaka Hayashi, Yoshio Ohshita

Technical Digest of 23rd International Photovoltaic Science and Engineering Conference & Solar Energy Exhibition   #1211   2013.10

Simplified Bifacial PERL Cell

Motoo Morimura, Tomohiro Soga, Yoshinobu Murakami, Yoshio Ohshita

Technical Digest of 23rd International Photovoltaic Science and Engineering Conference & Solar Energy Exhibition   #1158   2013.10

Simplified PERL Cell for Next Generation Turnkey System

Mari Aoki, Isao Sumita, Yoshio Ohshita

Technical Digest of 23rd International Photovoltaic Science and Engineering Conference & Solar Energy Exhibition   #1159   2013.10

Ag/Cu Double Screen Printing Metallization

Tetsu Takahashi, Aki Tanaka, Kazuo Muramatsu, Hiroki Yoshimura, Atsushi Ogura, Yoshio Ohshita

Technical Digest of 23rd International Photovoltaic Science and Engineering Conference & Solar Energy Exhibition   #1211   2013.10

Crystalline Si Solar Cell for Next Generation Mass-Production Line

Yoshio Ohshita

Proc. 7th International Workshop on Crystalline Silicon Solar Cells   179-184   2013.10

Study of Silicon Nitride Film for Rear Surface Passivation

K. Mishina, A. Ogishi, T. Kojima, M. Aoki, D. Imai, T. Saruwatari, I. Sumita, Y. Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   2044-2046   2013.9

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

Mari Aoki, Isao Sumita, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   1998-2000   2013.9

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

Mari Aoki, Tomihisa Tachibana, Isao Sumita, Yoshinobu Murakami, Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   1225-1227   2013.9

Simplified Bifacial PERL Cell ~ Newly Fabrication Process Suitable for Mass Production~

Yoshio Ohshita

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   1248-1250   2013.9

Simplified L-BSF Fabrication Process Using Screen Printing Method

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

Proc. 28th European Photovoltaic Solar Energy Conference and Exhibition   2034-2036   2013.9

30μm Fine-Line Printing for Solar Cells

Mari Aoki, Masashi Nakayama, Nobuo Ochiai, Kenichi Harigae, Koji Honda, Shinya Kitada, Hideaki Hayashi, Isao Sumita, Yoshio Ohshita

Proc. 39th IEEE Photovoltaic Specialists Conference   #603   2013.6

Texturization Control for Fabrication of High Efficiency Mono Crystalline Si Solar Cell

Mari Aoki, Isao Sumita, Hironori Sato, Yuji Kumagai, Yasushi Kawata, Yoshio Ohshita

Proc. 39th IEEE Photovoltaic Specialists Conference   #625   2013.6

Development of Back Contact Si Solar Cell and Module in Pilot Production Line

T. Machidaほか

Proceedings of 23rd European Photovoltaic Solar Energy Conference and Exhibition, 2AO1.5.   1006-1009   2008.9

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 

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*, Nobuaki Kojima, Yoshio Ohshita

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

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*, 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 

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 

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 

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 

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 

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 

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

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)

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

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

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

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

単結晶Si太陽電池セルおよびウェハーの曲げ試験

小林 勇人*、Pham Phuong Trang*, 中村　京太郎, 大下　祥雄, 河津 知之*、小椋 厚志*、宮下 幸雄*、山田 昇*

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

ボロンデルタドープp型水素化アモルファスシリコンと太陽電池応用

後藤 和泰 *, 尾崎 亮、森村 元勇, 田中 亜紀*、伊関 良子*, 中村　京太郎, 村松 和郎*、黒川 康良*, 大下　祥雄, 宇佐美 徳隆 *

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

硼素dopingがaSi:H/cSi界面・cSi表面欠陥に及ぼす影響のFET-TEGによる評価

林　豊, 後藤 和泰*, 原 知彦, 神岡 武文*, 尾崎 亮、森村 元勇, 中村　京太郎, 黒川 康良*、宇佐美 徳隆*, 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

Impact and Recent Approaches of Vehicle Integrated Solar Cell Modules International conference

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

The 8th Korea-Japan Joint Seminar on PV  ( Ramada Plaza Jeju, Jeju, Korea and Online )   2022.5  The Korea Photovoltaic Society, The Japan Photovoltaic Society, KETEP

Approaches for High-efficiency and Low-cost Multi-junction Solar Cells International conference

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

2022 MRS Spring Meeting & Exhibit  ( Hawaiʻi Convention Center, Honolulu, Hawaii, USA and Virtual )   2022.5  Materials Research Society (MRS)

ペロブスカイト／結晶シリコンタンデム太陽電池の研究動向と最近の進展 International conference

増田 淳*、金子 竜二*、若宮 淳志*、大平 圭介*、Dong Chung Nguyen*、石河 泰明*、小椋 厚志**, 中村　京太郎, 大下　祥雄

2022年第69回応用物理学会春季学術講演会 シンポジウム 結晶シリコン太陽電池技術の今後~カーボンニュートラル実現に向けて~  ( ハイブリッド（青山学院大学相模原キャンパス） )   2022.3  応用物理学会

単結晶 Siウェハーの表面構造が柔軟性に与える影響 International conference

原 豊*、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*、宮下 幸雄*、小椋 厚志**

2022年第69回応用物理学会春季学術講演会 シンポジウム 結晶シリコン太陽電池技術の今後~カーボンニュートラル実現に向けて~  ( ハイブリッド（青山学院大学相模原キャンパス） )   2022.3  応用物理学会

Development of Si Hetero-junction Solar Cell Suitable for Bottom Cell of Tandem Solar Cell International conference

Kyotaro Nakamura, Ryo Ozaki, Kazuhiro Gotoh**, Masafumi Yamaguchi, Yoshio Ohshita

31st International Photovoltaic Science and Engineering Conference (PVSEC-31)  ( Online )   2021.12  PVSEC-31 Organizing Committee

Loss analysis for perovskite/Si tandem solar cells International conference

Masafumi Yamaguchi, Kan-Hua LEE*, Ryo Ozaki*, Kyotaro Nakamura, Nobuaki Kojima, Yoshio Ohshita

2021 MRS Fall Meeting & Exhibit  ( Hybrid Conference (Hynes Convention Center/Sheraton Boston Hotel, Boston, Massachusetts, USA) )   2021.12  Materials Research Society (MRS)

n型およびp型フロントエミッタ型c-Si太陽電池の分極型PID挙動の比較 International conference

山口 世力*、城内 紗千子**, 中村　京太郎, 丸本 一弘 **, 大下　祥雄, 増田 淳 **

第18回「次世代の太陽光発電システム」シンポジウム  ( オンライン )   2021.10  日本太陽光発電学会

単結晶Si太陽電池の薄型化へ向けたスライスダメージ評価 III International conference

原 豊*、横川 凌*、西原 達平**, 中村　京太郎, 大下　祥雄, 河津 知之*、長井 俊樹*、山田 昇*、宮下 幸雄*、小椋 厚志**

2021年第82回応用物理学会秋季学術講演会  ( オンライン )   2021.9  応用物理学会

n-PERTセルのSiNx膜の組成およびSiO₂膜の膜厚が分極型PID挙動に与える影響 International conference

山口 世力 **, 中村　京太郎, 仙波 妙子*、大平 圭介**, 大下　祥雄, 増田 淳 **

2021年第82回応用物理学会秋季学術講演会  ( オンライン )   2021.9  応用物理学会

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

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

38th European Photovoltaic Solar Energy Conference and Exhibition  ( Online )   2021.9  WIP

Analysis of Si Bottom Cell Properties for Si Tandem Solar Cells International conference

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

2021 International Conference on Solid State Devices and Materials (SSDM2021)  ( VIRTUAL conference )   2021.9  SSDM2021 Organizing Committee

Mechanically-stacked and Electrically-connected Two-terminal Tandem Module International conference

Kyotaro Nakamura, Yoshio Ohshita

38th European Photovoltaic Solar Energy Conference and Exhibition  ( online )   2021.9  WIP

(Plenary) Si Tandem Solar Cells for PV-Powered Vehicles Invited International conference

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

Global Photovoltaic Conference 2021 (GPVC 2021)  ( Hybrid Conference (Kimdaejung Convention Center, Gwangju, Korea) )   2021.7  Korea Photovoltaic Society (KPVS)

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

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

48th IEEE Photovoltaic Specialists Conference (PVSC48)  ( Virtual Meeting )   2021.6  IEEE

電極/透明導電膜界面におけるFF劣化要因の評価(II) International conference

西原 達平*、村松 和郎**, 中村　京太郎, 大下　祥雄, 小椋 厚志 **

2021年第68回応用物理学会春季学術講演会  ( オンライン )   2021.3  応用物理学会

Suppression of Sawing Damage on Silicon Wafer for Thin Flexible Solar Cells International conference

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

The 30th International Photovoltaic Science and Engineering Conference (PVSEC-30) & Global Photovoltaic Conference 2020 (GPVC 2020)  ( Hybrid Conference (Jeju, Republic of Korea) )   2020.11  Korea Photovoltaic Society (KPVS)

Advanced Low-Temperature Curing Silver Paste for High Mobility Transparent Conductive Oxide Film in Silicon Heterojunction Solar Cell International conference

Tappei Nishihara*, Kazuro Muramatsu**, Kyotaro Nakamura, Yoshio Ohshita, Astushi Ogura **

The 30th International Photovoltaic Science and Engineering Conference (PVSEC-30) & Global Photovoltaic Conference 2020 (GPVC 2020)  ( Hybrid Conference (Jeju, Republic of Korea) )   2020.11  Korea Photovoltaic Society (KPVS)

p-aSi:H/i-aSi:H/cSi HJ 太陽電池の表面反転層lateral carrier transportシミュレーションとFET-TEGのデータからのDitとpaSi:H 層Naの抽出 International conference

林　豊, 神岡 武文*, 後藤 和泰**, 原 知 彦, 尾崎 亮, 森村 元勇*, 清水 彩子 **, 中村　京太郎, 宇佐美 徳隆*, 小椋 厚志**, 大下　祥雄

第17回次世代の太陽光発電システムシンポジウム  ( オンライン )   2020.10  日本太陽光発電学会

電極/透明導電膜界面におけるFF劣化要因の評価 International conference

西原 達平*、村松 和郎**, 中村　京太郎, 大下　祥雄, 小椋 厚志 **

2020年第81回応用物理学会秋季学術講演会  ( オンライン )   2020.9  応用物理学会

単結晶Si太陽電池の薄型化へ向けたスライスダメージ評価 II International conference

原 豊*、横川 凌*、西原 達平*、神岡 武文**, 中村　京太郎, 大下　祥雄, 河津 知之*、長井 俊樹*、山田 昇*、宮下 幸雄*、小椋 厚志**

2020年第81回応用物理学会秋季学術講演会  ( オンライン )   2020.9  応用物理学会

Evaluation of Sawing Damage for Thin Flexible Silicon Solar Cells International conference

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

47th IEEE Photovoltaic Specialists Conference (PVSC47)  ( Virtual Meeting )   2020.6  IEEE

単結晶Si太陽電池の薄型化へ向けたスライスダメージ評価 International conference

原 豊*、横川 凌*、大西 康平*、神岡 武文**, 中村　京太郎, 大下　祥雄, 河津 知之*、長井 俊樹*、山田 昇*、宮下 幸雄*、小椋 厚志**

2020年第67回応用物理学会春季学術講演会  ( 上智大学 四ツ谷キャンパス　東京都千代田区 )   2020.3  応用物理学会

MoO_x CSC/Si太陽電池のPDAによる特性変動 (3) －表面反転層をﾁｬﾈﾙとするFET-TEGのS/Dｺﾝﾀﾞｸﾀﾝｽによる評価(1)－ International conference

林　豊, 神岡 武文 **, 後藤 和泰 **, 尾崎 亮*, 中村　京太郎, 森村 元勇*, 宇佐美 徳隆 **, 大下　祥雄, 小椋 厚志*

2020年第67回応用物理学会春季学術講演会  ( 上智大学 四ツ谷キャンパス　東京都千代田区 )   2020.3  応用物理学会

High Mobility Transparent Conductive Oxide Film for Silicon Heterojunction Solar Cell International conference

Tappei Nishihara*,I1135:I1139 Hiroki Kanai*, Takefumi Kamioka*, Junsuke Matsuzaki*, Junya Kiyota**, Yoshio Ohshita, Kyotaro Nakamura, Satoshi Yasuno*, Ichiro Hirosawa*, Toshiro Okawa*, Astushi Ogura**

29th International Photovoltaic Science and Engineering Conference (PVSEC-29)  ( Qujiang International Conference Center, Xian, Shaanxi, China )   2019.11  China Renewable Energy Society

New Analysis Method to Evaluate Amorphous/Crystalline Si Interface for High Efficiency Heterojunction Solar Cells International conference

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

29th International Photovoltaic Science and Engineering Conference (PVSEC-29)  ( Qujiang International Conference Center, Xian, Shaanxi, China )   2019.11  China Renewable Energy Society

Characterization of Bendable Crystalline Si Solar Cells Made by Ultra-thin Wafer Slicing International conference

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

29th International Photovoltaic Science and Engineering Conference (PVSEC-29)  ( Qujiang International Conference Center, Xian, Shaanxi, China )   2019.11  China Renewable Energy Society

薄型フレキシブルSi太陽電池へ向けたスライスダメージ評価 International conference

大西 康平*、横川 凌*、西原 達平*、神岡 武文**, 中村　京太郎, 大下　祥雄, 河津 知之*、長井 俊樹*、山田 昇*、宮下 幸雄*、小椋 厚志**

2019年第80回応用物理学会秋季学術講演会  ( 北海道大学 札幌キャンパス　北海道札幌市 )   2019.9  応用物理学会

Development of Transparent Conductive Oxide for Silicon Heterojunction Solar Cell International conference

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

36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2019)  ( Marseille Chanot Convention and Exhibition Centre, Marseille, France )   2019.9  WIP

Development of Transparent Conductive Oxide for Silicon Heterojunction Solar Cell International conference

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

36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2019)  ( Marseille Chanot Convention and Exhibition Centre, Marseille, France )   2019.9  WIP

Effects of Si Bulk Defects Generated by SiNx:H PECVD on Light Induced Degradation International conference

Yoshio Ohshita, Takefumi Kamioka*, Kaito Watanabe, Riku Wakita*, リ　ヒュンジュ, Kyotaro Nakamura, Atsushi Ogura **

36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2019)  ( Marseille Chanot Convention and Exhibition Centre, Marseille, France )   2019.9  WIP

2D Transition Metal Dichalcogenide MoS₂ for Fingerless Cell Application International conference

Takefumi Kamioka*, Tappei Nishihara*, Yusuke Hibino**, Yutaka Hayashi, リ　ヒュンジュ, Kyotaro Nakamura, Yoshio Ohshita, Atsushi Ogura **

36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2019)  ( Marseille Chanot Convention and Exhibition Centre, Marseille, France )   2019.9  WIP

Sawing Damage Control for Thin Flexible Si Solar Cells International conference

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

36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2019)  ( Marseille Chanot Convention and Exhibition Centre, Marseille, France )   2019.9  WIP

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 International conference

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

2019 International Conference on Solid State Devices and Materials (SSDM2019)  ( Nagoya University, Nagoya, Aichi, Japan )   2019.9  JSAP

(Invited) Solar Cells for Cars Invited International conference

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

29th Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes (29th Annual NREL Silicon Workshop)   ( Winter Park Mountain Lodge, Winter Park, Colorado, USA )   2019.8  NREL

Ultra-Thin Lightweight Bendable Crystalline Si Solar Cells for Solar Vehicles International conference

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

46th IEEE Photovoltaic Specialists Conference (PVSC 46)  ( Sheraton Grand Chicago, Chicago, Illinois, USA )   2019.6  IEEE

Newly Developed Low Cost Metallization Paste for Si Hetero-Junction Solar Cell International conference

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

13th International Photovoltaic Power Generation and Smart Energy Exhibition & Conference (SNEC2019)  ( Kerry Hotel Pudong, Shanghai, China )   2019.6  SERIS

Recombination-Center-Defects Generated by Indium-Tin Oxide Reactive Plasma Deposition International conference

Yoshio Ohshita, Takefumi Kamioka **, リ　ヒュンジュ, Yutaka Hayashi, Kyotaro Nakamura, Atsushi Ogura **

9th International Conference on Crystalline Silicon Photovoltaic（SiliconPV 2019）  ( Campus Gasthuisberg, Leuven, Belgium )   2019.4  IMEC

n型フロントエミッター型結晶シリコン太陽電池モジュールの長時間電圧誘起劣化におけるSiO2膜の影響 International conference

鈴木友康*, 山口世力**, 中村　京太郎, 増田淳*, 大平圭介**

第66回応用物理学会 春季学術講演会  ( 東京工業大学大岡山キャンパス　東京都目黒区 )   2019.3  応用物理学会

p型結晶シリコン太陽電池セルのSiNx 反射防止膜がPID に及ぼす影響 International conference

城内紗千子*, 田中亜樹*, 村松和郎**, 中村　京太郎, 大下　祥雄, 増田淳**

第66回応用物理学会 春季学術講演会  ( 東京工業大学大岡山キャンパス　東京都目黒区 )   2019.3  応用物理学会

Si基板中に導入されるRPDプロセスダメージ層のキャリア再結合特性 International conference

神岡武文*, 磯貝勇樹*, リ　ヒュンジュ, 脇田陸, 原 知彦*, 林　豊, 中村　京太郎, 大下　祥雄, 小椋厚志**

第66回応用物理学会 春季学術講演会  ( 東京工業大学大岡山キャンパス　東京都目黒区 )   2019.3  応用物理学会

Characterization of electrical properties in carrier selective contact solar cells International conference

Yoshio Ohshita, Takefumi Kamioka**, リ　ヒュンジュ, Yutaka Hayashi, Kyotaro Nakamura, Atsushi Ogura**

The Forum on the Science and Technology of Silicon Materials 2018  ( Tsushima Campus, Okayama University, Japan )   2018.11  （独）日本学術振興会結晶加工と評価技術・第145委員会　第8回シリコン材料の科学と技術フォーラム実行委員会

R&D of Common Platform for Si Solar Cell Processes based on Advanced Multiple Technologies International conference

Kyotaro Nakamura, Yoshio Ohshita

The 7th Korea-Japan Joint Seminar on PV   ( Koreana hotel, Seoul, Korea )   2018.11  Korea Photovoltaic Society (KPVS) and the 175th Committee of Japan Society for the Promotion of Science (JSPS)

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

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

35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2018)  ( SQUARE, Brussels, Belgium )   2018.9  WIP

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

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

35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2018)  ( SQUARE, Brussels, Belgium )   2018.9  WIP

p型結晶シリコン太陽電池の電極用ペーストがPIDに及ぼす影響(２) International conference

城内紗千子*、田中亜樹*、村松和郎*、齋藤元希**, 中村　京太郎, 小椋厚志**, 大下　祥雄, 増田淳**

第79回応用物理学会 秋季学術講演会  ( 名古屋国際会議場　愛知県名古屋市 )   2018.9  応用物理学会

MoOx/SiO2界面のHAXPES分析 International conference

神岡武文*、安野聡**, リ　ヒュンジュ, 小島拓人*、西原達平**, 林　豊, 中村　京太郎, 大下　祥雄, 小椋厚志**

第79回応用物理学会 秋季学術講演会  ( 名古屋国際会議場　愛知県名古屋市 )   2018.9  応用物理学会

Electrical characterization of ITO/MoOx/SiOx/n-cSi cell: Interface workfunction and carrier transport analysis International conference

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

28th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes  ( Winter Park Mountain Lodge, Colorado, USA )   2018.8  NREL

MoOx 正孔選択コンタクトにおいてキャップ層がMoOx 界面仕事関数に与える影響 International conference

神岡武文**, 林　豊, 磯貝勇樹*, 中村　京太郎, 大下　祥雄, 小椋厚志**

第15回次世代の太陽光発電システムシンポジウム  ( ホテルさっぽろ芸文館　北海道札幌市 )   2018.7  日本学術振興会産学協力研究委員会第１７５委員会

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

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

Grand Renewable Energy 2018 International Conference and Exhibition (GRE2018)  ( Pacifico Yokohama, Japan )   2018.6  The Grand Renewable Energy 2018 Organizing Committee

Fluence of Additives in the Electrode Paste for Crystalline Si Solar Cells on Potential-Induced Degradation International conference

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

World Conference on Photovoltaic Energy Conversion (WCPEC-7)   ( Hilton Waikoloa Village, Hawaii, USA )   2018.6  IEEE

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

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

World Conference on Photovoltaic Energy Conversion (WCPEC-7)   ( Hilton Waikoloa Village, Hawaii, USA )   2018.6  IEEE

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

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

World Conference on Photovoltaic Energy Conversion (WCPEC-7)   ( Hilton Waikoloa Village, Hawaii, USA )   2018.6  IEEE

P-type Bi-facial PERT Solar Cell using Less Than 100 μm thick Cz Wafer and Cu Paste International conference

Tomoyuki Kawatsu, Kazuo Muramatsu, Yoshio Ohshita

The 26th International Photovoltaic Science and Engineering Conference (PVSEC-26)  ( Singapore )   2016.10 

Mono Crystalline Si PERC using Less Than 100 μm-thick Wafer by MWS Slicing International conference

Akira Tanizaki, Keitarou Okamoto, Yusuke Kawamoto, Yoshio Ohshita

25th International Photovoltaic Science & Engineering Conference  ( Busan, Korea )   2015.11 

Novel Silver and Copper Pastes for N-type Bifacial PERT Cell International conference

Tetsu Takahashi, Yoshio Ohshita

31st European PV Solar Energy Conference and Exhibition  ( Hamburg, Germany )   2015.9  WIP-Renewable Energies

SiO₂/SiNx Stacking Layer for Rear Surface Passivation of PERC International conference

Keitarou Okamoto, Yusuke Kawamoto, Yasushi Yoshino, Yoshio Ohshita

42nd IEEE Photovoltaic Specialists Conference  ( NEW ORLEANS, LA )   2015.6  IEEE

R&D on Ultimate Wafer-Based Si Solar Cells under NEDO in Japan Invited International conference

Takashi Sekiguchi, Akira Tanizaki, Koichi Kakimoto, Atsushi Ogura, Yoshio Ohshita

6th World Conferenceon Photovoltaic Energy Conversion (WCPEC-6)  ( Kyoto, Japan )   2014.11  PVSEC, IEEE PVSC, EU-PVSEC

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

Takashi Sekiguchi, Akira Tanizaki, Tetsu Takahashi, Koichi Kakimoto, Yoshio Ohshita

29th European Photovoltaic Solar Energy Conference and Exhibition  ( Amsterdam, The Netherlands )   2014.9  WIP-Renewable Energies

N-type Bifacial Cell Using Simplified Ion Doping System International conference

Norihiko Takeda, Tomohiro Soga, Yoshinobu Murakami, Yoshio Ohshita

40th IEEE Photovoltaic Specialists Conference  ( Denver, Colorado )   2014.6  IEEE