Improved efficiency of Cu(In,Ga)Se2 thin film solar cells with chemically deposited ZnS buffer layers by air-annealing -: Formation of homojunction by solid phase diffusion

被引：42

作者：

Nakada, T ^{[1
]}

Mizutani, M ^{[1
]}

机构：

[1] Aoyama Gakuin Univ, Dept Elect Engn & Elect, Setagaya Ku, Tokyo 1578572, Japan

来源：

CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年

关键词：

D O I：

10.1109/PVSC.2000.915889

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 found that a role of the annealing process in CBD-ZnS/CIGS solar cells is the diffusion of Zn and S into CIGS thin films even at relatively low temperature of 200 degreesC. A new technique to form a homojunction of CIGS thin film solar cells by Zn-diffusion from ZnS layer is proposed. 17.7 % efficiency Cd-free CIGS solar cell has been fabricated by optimizing the annealing process, thickness of buffer layers, and GIGS absorber layers. This result suggests that high efficiency CIGS thin film solar cells can be achieved even if Cd is not utilized.

引用

页码：529 / 534

页数：6

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