Relation between charge carrier density and lifetime in polymer-fullerene solar cells

被引：14
|
作者：
Thakur, Anil K. [1 ,2 ]
Baboz, Henri [1 ,2 ]
Wantz, Guillaume [1 ,2 ]
Hodgkiss, Justin [3 ]
Hirsch, Lionel [1 ,2 ]
机构：
[1] Univ Bordeaux, IMS, UMR 5218, F-33400 Talence, France
[2] CNRS, IMS, UMR 5218, F-33400 Talence, France
[3] Victoria Univ Wellington, Sch Chem & Phys Sci, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington, New Zealand
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 112卷 / 04期
关键词：
RECOMBINATION; VOLTAGE;
D O I：
10.1063/1.4746787
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The recombination kinetics of photo-generated charge carriers in polymer-fullerene solar cells has been studied. The transition between bimolecular to monomolecular (trap-assisted) recombination has been investigated by transient open-circuit voltage decay and intensity dependence of open-circuit voltage at different temperatures to quantify the trap delimitation energy. It has been observed that the critical parameter underpinning the transition between bimolecular to monomolecular recombination is the density of photo-generated charge carriers and their lifetime. The correspondence between carrier lifetime and density of photo-carriers has been experimentally observed for the first time. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4746787]
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页数：5
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