Optoelectronic Investigation of Sb-Doped Cu(In,Ga)Se2

被引:7
作者
Mansfield, Lorelle M. [1 ]
Kuciauskas, Darius [1 ]
Dippo, Patricia [1 ]
Li, Jian V. [1 ]
Bowers, Karen [1 ]
To, Bobby [1 ]
DeHart, Clay [1 ]
Ramanathan, Kannan [1 ]
机构
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源
IEEE JOURNAL OF PHOTOVOLTAICS | 2015年 / 5卷 / 06期
关键词
Admittance spectroscopy; Cu(In; Ga)Se-2; (CIGS); defects; photovoltaic cells; photoluminescence; Sb doping; thin films; RECOMBINATION; EFFICIENCY;
D O I
10.1109/JPHOTOV.2015.2470082
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 this study, we incorporated Sb into the precursor that was subsequently converted to Cu(In,Ga)Se-2 (CIGS) by a selenization process. We observed enhanced grain size and improved device performance compared with similarly processed CIGS films made without Sb. The optoelectronic properties of the Sb-doped CIGS films were examined with photoluminescence (PL) and admittance spectroscopy. These techniques allowed us to explore the changes in native defect compensation and evaluate the origin of a lower energy PL peak that is not typically seen in CIGS.
引用
收藏
页码:1769 / 1774
页数:6
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