Nonuniform power generation in polycrystalline thin film photovoltaics

被引:7
作者
Karpov, VG [1 ]
Harju, R [1 ]
Dorer, G [1 ]
机构
[1] First Solar, LLC, Perrysburg, OH 43551 USA
来源
CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年
关键词
D O I
10.1109/PVSC.2000.915895
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 consider effects of nonuniformities on thin film photovoltaics where microscopic parameters vary between different local regions. Our experimental data on polycrystalline CdTe/CdS PV cell reveal nonuniformities of different space scales. A related theoretical problem of macroscopic parameters in randomly nonuniform thin film PV cell is solved in the effective medium approximation. The effective open circuit voltage and correlation length in the are calculated. The theory predicts hot spots caused by local currents circulating in the system under open circuit conditions.
引用
收藏
页码:547 / 550
页数:4
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