Photo-induced changes in fundamental properties of organic solar cells

被引：44

作者：

Bhattacharya, J. ^{[1
]}

Mayer, R. W. ^{[1
]}

Samiee, M. ^{[1
]}

Dalal, V. L. ^{[1
]}

机构：

[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 19期

关键词：

DEGRADATION; POLYMER;

D O I：

10.1063/1.4711806

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the measurement of fundamental properties such as deep defects and hole mobility in poly-3-hexyl-thiophene (P3HT)/[6,6]-phenyl-C60-butyric acid methyl ester(PCBM) solar cells when the cells are exposed to solar radiation without any atmospheric exposure. It is found that the midgap defect density in P3HT and the interface density between P3HT and PCBM increase significantly upon light soaking along with a reduction in hole mobility in P3HT. The increase in defect density leads to a corresponding increase in reverse saturation current of the diode, and the corresponding decrease in open circuit voltage of the cell upon light soaking. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4711806]

引用

页数：3

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