High-efficiency Cu(In,Ga)Se2 thin-film solar cells with a CBD-ZnS buffer layer

被引：143
|
作者：
Nakada, T [1 ]
Mizutani, M [1 ]
Hagiwara, Y [1 ]
Kunioka, A [1 ]
机构：
[1] Aoyama Gakuin Univ, Dept Elect Engn & Elect, Setagaya Ku, Tokyo 1578572, Japan
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2001年 / 67卷 / 1-4期
关键词：
Cu(In; Ga)Se-2; thin film; solar cells; Cd-free; CBD-ZnS;
D O I：
10.1016/S0927-0248(00)00289-0
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：
High-efficiency cadmium-free Cu(In,Ga)Se-2 (CIGS) thin-film solar cells have been fabricated using a chemical bath deposition (CBD)-ZnS buffer layer, a wider band gap material than of conventional CBD-CdS. Energy dispersive X-ray microanalysis (EDX) revealed Zn interdiffusion in the CIGS thin film at the CBD-ZnS/CIGS solar cell interface, implying formation of a buried np junction at the surface of the CIGS film. The best cell to date yielded an active area efficiency of 17.2% after light soaking. This result suggests that CIGS solar cells with efficiencies as high as those fabricated using CdS buffer can be achieved even if Cd is not utilized. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：255 / 260
页数：6
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