Analysis of Photovoltaic Properties of C_60-Si Heterojunction Solar Cells
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概要
- 論文の詳細を見る
Photovoltaic and photoconductive properties of C_60/p-Si heterojunction solar cells grown by molecular beam epitaxy have been analyzed using a device simulator based on measured optical absorption coefficients of C_60 films. The spectral response of cell photocurrents in the short wavelength region of less than 700 nm is determined to be due to the optical absorption of the C_60 layer. Marked improvements in photovoltaic properties of the cells have also been observed by increasing the light intensity. Analytical results suggest that photoconductive effects on C_60 layers under light illumination increase the carrier concentration and decrease the series resistance of the C_60 layer, resulting in an increase of the open-circuit voltage and short-circuit current of the C_60/p-Si heterojunction cells. The possibility of improving the conversion efficiency of C_60-based solar cells is also discussed.
- 社団法人応用物理学会の論文
- 2000-03-15
著者
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YAMAGUCHI Masafumi
Toyota Technological Institute
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Kojima Nobuaki
Toyota Technological Institute
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ISHIKAWA Naomi
Toyota Technological Institute
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