The comparison of different chemical reaction routes for CBD-ZnS applied on Cu(In,Ga)Se2 Solar cells

被引:0
作者
Lin, Jen-Hao [1 ]
Ho, Wei-Hao [1 ]
Wei, Shi-Yuan [1 ]
Hsu, Chia-Hao [1 ]
Lin, Tzu-Ying [1 ]
Lai, Chih-Huang [1 ]
机构
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
来源
2013 IEEE 39TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2013年
关键词
CIGS; ZnS; Chemical bath deposition; light soaking; BUFFER;
D O I
暂无
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
the most high efficiency cadmium-free CIGS solar cell is zinc sulfide fabricated by chemical bath deposition. However, on account of the presence of Zn(OH)(2) phase during chemical reaction, it leads to poor cell performance attributed in low fill factor and shows distorted I-V curve. The cell performance can be enhanced by continuous illumination, which has been found by many groups called light-soaking effect. In this paper, we compared two different chemical processes with and without ammonia hydroxide etching. The well-known ammonia etching effect for removing Zn(OH)(2) phase has also been observed in this work By comparing the different chemical processes with ammonia etching, we noticed the difference of compositions due to chemical reaction routes. Based on the research for chemical routes, we further to optimize CBD-ZnS process deposited on CIGS substrates. Owing to the decrease of Zn(OH)(2) concentration by optimized CBD-ZnS, the cell efficiency can be improved in Voc and FF. Moreover, the time for lightsoaking treatment can be shortened to less than 20 minutes.
引用
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页码:1142 / 1145
页数:4
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