Piezo-effect and physics of CdS-based thin-film photovoltaics

被引：40

作者：

Shvydka, D ^{[1
]}

Drayton, J ^{[1
]}

Compaan, AD ^{[1
]}

Karpov, VG ^{[1
]}

机构：

[1] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 12期

关键词：

D O I：

10.1063/1.2056607

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a strong reversible piezo-effect in CdTe/CdS photovoltaics consistent with the piezo parameters of CdS. Our finding suggests a different understanding of CdS-based solar cells including CdTe- and CuIn(Ga)Se-based devices. Because the CdS film is put into compression in the device, the piezo coupling generates surface charges and the electric field opposing that of the absorber layer. The corresponding potential barrier makes CdS insulating and the device operate in a metal-insulator-semiconductor mode. Our understanding introduces the concept of piezo-photovoltaics and suggests specific practical implications. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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