Nearly carbon-free printable CIGS thin films for solar cell applications

被引:68
作者
Lee, Eunjoo [1 ]
Park, Se Jin [1 ,3 ]
Cho, Jin Woo [1 ]
Gwak, Jihye [2 ]
Oh, Min-Kyu [3 ]
Min, Byoung Koun [1 ]
机构
[1] Korea Inst Sci & Technol, Clean Energy Res Ctr, Seoul 136791, South Korea
[2] Korea Inst Energy Res, Photovolta Res Ctr, Taejon 305343, South Korea
[3] Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea
关键词
CuInxGa1-xSeyS2-y; CIGS; Carbon; Solution process; Solar cells; NANOCRYSTAL INKS;
D O I
10.1016/j.solmat.2011.05.048
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
In order to fabricate low cost and printable CuInxGa1-xSeyS2-y (CIGS) thin film solar cells, a precursor solution based method was developed. Particularly, in this method, nearly carbon-free CIGS film was obtained by applying a three-step heat treatment process: the first for the elimination of carbon residue by air annealing, the second for the formation of CIGS alloy by sulfurization, and the third for grain growth and densification in the CIGS film by selenization. The film also revealed very large grains with a low degree of porosity, similar to those produced by the vacuum based method. A solar cell device with this film showed current-voltage characteristics of J(SC)=21.02 mA/cm(2), V-OC=451 mV, FF=47.3%, and n=4.48% at standard conditions. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:2928 / 2932
页数:5
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