Chemical bath deposition of CdS buffer layer for CIGS solar cells

被引:93
作者
Hashimoto, Y [1 ]
Kohara, N [1 ]
Negami, T [1 ]
Nishitani, N [1 ]
Wada, T [1 ]
机构
[1] Matsushita Elect Ind Co Ltd, Cent Res Labs, Seika, Kyoto 61902, Japan
关键词
compound semiconductor; solar cell; CuInSe2; thin film;
D O I
10.1016/S0927-0248(97)00124-4
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
We investigated the chemical bath deposition of CdS thin Rims on the Cu(In,Ga)Se-2 (CIGS) absorber layers and glasses. The process of the chemical bath deposition of CdS layer affected the performance of the CIGS solar cells. The CdS layers were deposited on the CIGS film from CdI2, thiourea (NH2CSNH2) and ammonia solutions. The influence of pH on the chemical bath deposition process was studied. The surfaces of the CdS films were observed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The compositions of the obtained CdS layers were analyzed by Anger electron spectroscopy (AES). The performance of the CIGS solar cells was discussed on the basis of the characteristics of the chemical bath deposited layer. We have successfully fabricated a high-efficiency CIGS solar cell with an efficiency of 17% using a CdS layer with stoichiometric composition.
引用
收藏
页码:71 / 77
页数:7
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