Carrier Transport in Polycrystalline Silicon Thin Film Solar Cells Grown on a Highly Textured Structure
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概要
- 論文の詳細を見る
Photovoltaic performance of polycrystalline silicon (poly-Si) thin film solar cells deposited by plasma enhanced chemical vapor deposition at a low temperature of ${\sim}200$°C have been investigated as a function of surface structures of textured substrates, which are needed for enhancing the light trapping effect. With increasing surface roughness of the substrate, the light trapping effect is increased, while the photovoltaic performance is decreased because the carrier transport in the poly-Si photovoltaic layer depends on the poly-Si microstructures which are significantly deteriorated by the surface texture. To quantify the effect of the surface roughness, a simple one-dimensional simulation model consisting of two regions, i.e., the initial growth region near the substrate with poor crystallinity and the postgrowth region, is proposed for the photovoltaic performance of the poly-Si thin film solar cells with different poly-Si layer thicknesses. The simulation result reveals that the carrier transport in the initial growth region more strongly depends on the surface roughness compared with that in the postgrowth region.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-09-15
著者
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Muhida Riza
Department Of Systems Innovation Graduate School Of Engineering Science Osaka University
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Honda Shinya
Department Of Biological Science And Technology And Tissue Engineering Research Center Tokyo Univers
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HARANO Tomokazu
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University
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Hamakawa Yoshihiro
Department Of Electrical Engineering Faculty Of Engineering Osaka University
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Okamoto Hiroaki
Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University
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Takakura Hideyuki
Department Of Electrical Engineering Faculty Of Engineering Science Osaka University
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Kawamura Tomohiro
Department Of General Thoracic Surgery Osaka University Graduate School Of Medicine
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Toyama Toshihiko
Department Of Physical Science Graduate School Of Engineering Science
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Hamakawa Yoshihiro
Department of Photonics, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Okamoto Hiroaki
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Okamoto Hiroaki
Department of Advanced Materials and Science, Faculty of Engineering, Yamaguchi University
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Takakura Hideyuki
Department of Photonics, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Harano Tomokazu
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Muhida Riza
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Kawamura Tomohiro
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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