Experimental and Theoretical Evaluation of Cu(In,Ga)Se2 Concentrator Solar Cells
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概要
- 論文の詳細を見る
Cu(In,Ga)Se2 (CIGS) solar cells which have yielded high performance devices under 1-sun were experimentally evaluated under various concentrated lights. The open-circuit voltage, fill factor, and efficiency of the fabricated solar cell under 6.6-suns were 728 mV, 0.770, and 20.3%, respectively. It was found that the efficiency of low performance CIGS solar cells was increased by the irradiation of concentrated light and was comparable to the efficiency of high performance CIGS solar cells. Theoretical simulation revealed that the increment of the recombination velocity toward the defect density in CIGS thin films were reduced under concentrated light, due to the compensation of defects by the large amount of carriers generated by irradiating concentrated light.
- 2012-01-25
著者
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Yamada Akira
Department Of Cardiology Aso-iizuka Hospital
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Kurokawa Yasuyoshi
Department Of Physical Electronics Tokyo Institute Of Technology
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Hirai Yoshiaki
Department Of Biochemical Engineering And Science College Of Computer Science And Systems Engineerin
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Nagashima Hiroshi
Department of Environmental and Civil Engineering, University of Okayama
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Nagashima Hiroshi
Department of Physical Electronics, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
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