A high efficiency thin film silicon solar cell and module

被引:207
作者
Yamamoto, K [1 ]
Nakajima, A [1 ]
Yoshimi, M [1 ]
Sawada, T [1 ]
Fukuda, S [1 ]
Suezaki, T [1 ]
Ichikawa, M [1 ]
Koi, Y [1 ]
Goto, M [1 ]
Meguro, T [1 ]
Matsuda, T [1 ]
Kondo, M [1 ]
Sasaki, T [1 ]
Tawada, Y [1 ]
机构
[1] Kaneka Corp, Otsu, Shiga 5200104, Japan
关键词
solar cell; amorphous silicon; microcrystalline silicon; light trapping; plasma chemical vapor; deposition;
D O I
10.1016/j.solener.2004.08.028
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A photoelectric conversion efficiency of over 10% has been achieved in thin-film microcrystalline silicon solar cells which consist of a 2mum thick layer of polycrystalline silicon. It was found that an adequate current can be extracted even from a thin film due to the very effective light trapping effect of silicon with a low absorption coefficient. As a result, this technology may eventually lead to the development of low-cost solar cells. Also, an initial aperture efficiency as high as 13.5% has been achieved with a large area (91 cm x 45 cm) tandem solar cell module of microcrystalline silicon and amorphous silicon (thin film Si hybrid solar cell). An even greater initial efficiency of 14.7% has been achieved in devices with a small size (area of 1 cm(2)), and further increases of efficiency can be expected. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:939 / 949
页数:11
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