Papers - NISHIOKA Kensuke
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Thermal Transfer Simulation For Concentrator Photovoltaic Receiver Under Concentration Condition Reviewed
Yasuyuki Ota, Hirokazu Nagai, Kenji Araki, Kensuke Nishioka
AIP Conference Proceedings (9TH INTERNATIONAL CONFERENCE ON CONCENTRATING PHOTOVOLTAIC SYSTEMS: CPV-9) 1556 18 - 21 2013.4
Language：English Publishing type：Research paper (international conference proceedings)
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Impact of spectral irradiance distribution and temperature on the outdoor performance of concentrator photovoltaic system Reviewed
Husyira Al Husna, Naoki Shibata, Naoki Sawano, Seiya Ueno, Yasuyuki Ota, Takashi Minemoto, Kenji Araki, Kensuke Nishioka
AIP Conference Proceedings (9TH INTERNATIONAL CONFERENCE ON CONCENTRATING PHOTOVOLTAIC SYSTEMS: CPV-9) 1556 252 - 255 2013.4
Language：English Publishing type：Research paper (international conference proceedings)
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Reduction of Operating Temperature in 25 Series-Connected 820X CPV Reviewed
Yasuyuki Ota, Tsuyoshi Sueto, Hirokazu Nagai, Kenji Araki, Kensuke Nishioka
Japanese Journal of Applied Physics 52 04CR03-1 - 04CR03-4 2013.3
Language：English Publishing type：Research paper (scientific journal)
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Control of Pore Size of High Purity Nanoporous Silica Formed from Volcanic Ash Deposit Shirasu Reviewed
Kosei Sato, Toshinori Kokubu, Kensuke Nishioka
Advanced Materials Research 622-633 970 - 974 2013.2
Language：English Publishing type：Research paper (scientific journal)
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Heat reduction of concentrator photovoltaic module using high radiation coating Reviewed
Kensuke Nishioka, Yasuyuki Ota, Kazuyuki Tamura, Kenji Araki
Surface and Coatings Technology 215 472 - 475 2013.1
Language：English Publishing type：Research paper (scientific journal)
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Improvement of Electrical Properties of Silicon Oxide Thin Film with Ultraviolet and Organic Gas Assisted Annealings Reviewed
Takuya Ito, Takuya Matumoto, Kensuke Nishioka
Surface and Coatings Technology 215 447 - 451 2013.1
Language：English Publishing type：Research paper (scientific journal)
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Effect of Anti-Soiling Layer Coated on Poly(methyl methacrylate) for Concentrator Photovoltaic Modules Reviewed
Kenji Nabemoto, Yuya Sakurada, Yasuyuki Ota, Kazuyuki Takami, Hirokazu Nagai, Kazuyuki Tamura, Kenji Araki, Kensuke Nishioka
Japanese Journal of Applied Physics 51 ( 10 ) 10ND11.1 - 10ND11.3 2012.10
Language：English Publishing type：Research paper (scientific journal)
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Sandblasting durability of acrylic and glass Fresnel lenses for concentrator photovoltaic modules Reviewed
Kensuke Nishioka, Kenichi Ikematsu, Yasuyuki Ota, Kenji Araki
Solar Energy 86 ( 10 ) 3021 - 3025 2012.10
Language：English Publishing type：Research paper (scientific journal)
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2-Dimensional Mapping of Power Consumption Due to Electrode Resistance Using Simulator for Concentrator Photovoltaic Module Reviewed
Yasuyuki Ota, Yuya Sakurada, Kensuke Nishioka
Materials Science Forum 725 183 - 186 2012.8
Language：English Publishing type：Research paper (scientific journal)
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Evaluation of Organic Thin Film Solar Cells Using 3-Diode Equivalent Circuit Model with Inverted Diode Reviewed
Yuya Sakurada, Yasuyuki Ota, Hiroki Watanabe, Hideyuki Murata, Kensuke Nishioka
Materials Science Forum 725 179 - 182 2012.8
Language：English Publishing type：Research paper (scientific journal)
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Two-Dimensional Mapping of Power Consumption Due to Series Resistance Evaluated by Simulator for Concentrator Photovoltaic Module Reviewed
Yasuyuki Ota and Kensuke Nishioka
Japanese Journal of Applied Physics 51 ( 2-2-02BP03 ) 1 - 4 2012.2
Language：English Publishing type：Research paper (scientific journal)
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Structural and electrical properties of Ni-Cr oxide films prepared by magnetron sputtering Reviewed
N. Saito, I. Nakaaki, H. Iwata, K. Nishioka
Thin Solid Films 520 3031 - 3034 2012.1
Language：English Publishing type：Research paper (scientific journal)
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Sakurada Y., Ota Y., Nishioka K.
AIP Conference Proceedings 1407 216 - 219 2011.12
Language：English Publishing type：Research paper (international conference proceedings) Publisher：AIP Conference Proceedings
Using spice diode model, the temperature characteristics of an InGaP/InGaAs/Ge triple-junction solar cell under concentrated light conditions were analyzed in detail. The current-voltage (I-V) characteristics of the single-junction solar cells (InGaP, InGaAs, and Ge solar cells) were measured at various temperatures. From dark I-V characteristics of each single-junction solar cell, the diode parameters and temperature exponents were extracted. The extracted diode parameters and temperature exponents were applied to the equivalent circuit model for the triple-junction solar cell, and the solar cell performance was calculated with considering the temperature characteristics of series resistance. There was good agreement between the measured and calculated I-V characteristics of the triple-junction solar cell at various temperatures under concentrated light conditions. © 2011 American Institute of Physics.
DOI： 10.1063/1.3658330
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Investigation of the photovoltaic performance of the polycrystalline silicon p–n junction by a photothermal measurement Reviewed
Atsuhiko Fukuyama, Daisuke Ishibashi, Yohei Sato, Kentaro Sakai, Hidetoshi Suzuki, Kensuke Nishioka, Tetsuo Ikari
Journal of Non-Crystalline Solids 2011.12
Language：English Publishing type：Research paper (scientific journal)
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Anti-soiling layer coarted on PMMA Fresnel lens for concentrator photovoltaic modules
Nishioka K., Nabemoto K., Sakurada Y., Ota Y., Takami K., Nagai H., Araki K.
Conference Record of the IEEE Photovoltaic Specialists Conference 003332 - 003334 2011.12
Language：English Publishing type：Research paper (international conference proceedings) Publisher：Conference Record of the IEEE Photovoltaic Specialists Conference
An anti-soiling layer was coated on the PMMA substrates. The anti-soiling layer was prepared by coating the inorganic/organic nano-graded intermediate layer (Ube-Nitto Kasei Co., Ltd.) and photocatalytic surface layer including modified WO 3 (ILUMIO®, Sumitomo Chemical Co., Ltd.) and partial hydrolyzed tetraethylorthosilicate (Wako Pure Chemical Industries, Ltd.). After 6 months, the reduction rate of photocurrent without anti-soiling coat was 7.5%. On the other hand, that with anti-soiling coat could be suppressed to 3%. The experimental environment of the exposure site is clean, and there is a lot of rainfall. It is considered that the effect of the anti-soiling coat must be more significant if CPV systems are installed in dusty areas. © 2011 IEEE.
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Three-dimensional simulating of concentrator photovoltaic modules using ray trace and equivalent circuit simulators Reviewed
Yasuyuki Ota, and Kensuke Nishioka
Solar Energy 86 476 - 481 2011.11
Language：English Publishing type：Research paper (scientific journal)
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Water-Repellent Silicon Surface with Nanostructure Formed by Catalysis of Single Nanosized Silver Particle Reviewed
Kensuke Nishioka, Tsuyoshi Sueto, Kenji Yoshino, and Nobuo Saito
Japanese Journal of Applied Physics 50 ( 128003 ) 1 - 2 2011.11
Language：English Publishing type：Research paper (scientific journal)
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Simulation of Temperature Characteristics of InGaP/InGaAs/Ge Triple-Junction Solar Cell under Concentrated Light Reviewed
Yuya Sakurada, Yasuyuki Ota, and Kensuke Nishioka
Japanese Journal of Applied Physics 50 ( 4 ) 4 - 13 2011.4
Language：English Publishing type：Research paper (scientific journal)
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Temperature Characteristics Analysis of Triple‐Junction Solar Cell under Concentrated Conditions using Spice Diode Model Reviewed
Yuya Sakurada, Yasuyuki Ota, and Kensuke Nishioka
AIP Conference Proceedings (7TH INTERNATIONAL CONFERENCE ON CONCENTRATING PHOTOVOLTAIC SYSTEMS: CPV-7) 50 ( 4 ) 1 - 4 2011.4
Language：Japanese Publishing type：Research paper (international conference proceedings)
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Tracking Error analysis of Concentrator Photovoltaic Module Using Total 3‐Dimensional Simulator Reviewed
Yasuyuki Ota and Kensuke Nishioka
AIP Conference Proceedings (7TH INTERNATIONAL CONFERENCE ON CONCENTRATING PHOTOVOLTAIC SYSTEMS: CPV-7) 1407 281 - 284 2011.4
Language：English Publishing type：Research paper (international conference proceedings)