Effects of Na incorporated at different periods of deposition on Cu(In, Ga)Se2 films

被引:9
作者
Tan, Xiao Hui [1 ,2 ]
Ye, Sheng Lin [2 ,3 ]
Fan, Bin [2 ]
Tang, Ken [2 ]
Liu, Xu [1 ]
机构
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Optorun Co Ltd, Kawagoe, Saitamo 3500801, Japan
[3] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai 200093, Peoples R China
关键词
SOLAR-CELLS; THIN-FILMS; CUINSE2; GROWTH; SODIUM;
D O I
10.1364/AO.49.003071
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Sodium was incorporated into Cu(In, Ga)Se-2 (CIGS) thin films by evaporating NaF before the second and third stages and after the third stage of CIGS deposition. The Na-doping dosage was precisely controlled by a light-controlling method based on reflected light signals. X-ray diffraction and scanning electron microscopy results reveal that CIGS crystalline growth and microstructure can be strongly influenced by periods of Na incorporation, which leads to different device performance characteristics. Based on the analysis of results, incorporating Na before the second stage of the standard three-stage process is suggested. (c) 2010 Optical Society of America
引用
收藏
页码:3071 / 3074
页数:4
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