Metastable electrical transport in Cu(In,Ga)Se2 thin films and ZnO/CdS/Cu(In,Ga) Se2 heterostructures

被引：38

作者：

Engelhardt, F

Schmidt, M

Meyer, T

Seifert, O

Parisi, J

Rau, U

机构：

[1] Univ Stuttgart, Inst Phys Elekt, D-70569 Stuttgart, Germany

[2] Univ Oldenburg, Fac Phys, D-26111 Oldenburg, Germany

来源：

PHYSICS LETTERS A | 1998年 / 245卷 / 05期

关键词：

CuInSe2; heterojunctions; solar cells; persistent photoconductivity;

D O I：

10.1016/S0375-9601(98)00401-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We ascribe the relaxation of the open circuit voltage in Cu(In,Ga)Se-2 heterojunction solar cells to persistent photoconductivity in the absorber material. The experimentally observed increase of the open circuit voltage during illumination is accompanied by an increase of the junction capacitance resulting from an effective increase of the space charge density by persistent trapping of photogenerated electrons. (C) 1998 Elsevier Science B.V.

引用

页码：489 / 493

页数：5

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