The role of interfaces in thin-film CdTe solar cells

被引:0
作者
Romero, MJ [1 ]
Gessert, TA [1 ]
Al-Jassim, MM [1 ]
Dhere, RG [1 ]
Albin, DS [1 ]
Moutinho, HR [1 ]
机构
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源
DEFECT AND IMPURITY ENGINEERED SEMICONDUCTORS AND DEVICES III | 2002年 / 719卷
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Thin-film CdTe solar cells are, very promising for future cost-effective photovoltaics. The photovoltaic effect in these cells is based on the extraction of photoexcited carriers by the field provided by the CdTe/CdS heterojunction. An additional interface with non-rectifying characteristics is needed to close the external circuit on the other side of the CdTe thin film. Finally, the transport of photoexcited carriers is influenced by the presence of grain boundaries (GBs). In this contribution, we investigate several aspects of these interfaces and their effects on the operation of CdTe solar cells by electron-beam-induced current (EBIC) and cathodoluminescence (CL) measurements.
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页码:389 / 394
页数:6
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