Injected charge extraction by linearly increasing voltage for bimolecular recombination studies in organic solar cells

被引：39
作者：
Armin, Ardalan [1 ]
Velusamy, Marrapan
Burn, Paul L.
Meredith, Paul
Pivrikas, Almantas
机构：
[1] Univ Queensland, COPE, Sch Math & Phys, Brisbane, Qld 4072, Australia
来源：
APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 08期
基金：
澳大利亚研究理事会;
关键词：
EFFICIENCY; MOBILITY;
D O I：
10.1063/1.4747330
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present a technique called "injected charge extraction by linearly increasing voltage" (i-CELIV) and apply it to evaluate bimolecular recombination in organic solar cells. The experimental setup is straightforward requiring no laser or optical-electrical pulse synchronization. The applicability of the method is discussed and non-Langevin recombination in a model poly(3-n-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PC60BM) solar cell is quantified and confirmed. Further, Langevin recombination in the low optical gap high efficiency blend, poly[2,6-(4,4-bis-{2-ethylhexyl}-4H-cyclopenta[2,1-b;3,4-b']-dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)]:phenyl-C71-butyric acid methyl ester is reported using i-CELIV. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/ 1.4747330]
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页数：5
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