Polaron recombination in pristine and annealed bulk heterojunction solar cells

被引：20

作者：

Deibel, C. ^{[1
]}

Baumann, A. ^{[1
]}

Wagenpfahl, A. ^{[1
]}

Dyakonov, V. ^{[1
,2
]}

机构：

[1] Univ Wurzburg, D-97074 Wurzburg, Germany

[2] Bavarian Ctr Appl Energy Res ZAE Bayern, D-97074 Wurzburg, Germany

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 21-22期

关键词：

Organic semiconductors; Polymers; Photovoltaic effect; Charge carrier recombination; MOBILITY;

D O I：

10.1016/j.synthmet.2009.07.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The major loss mechanism of photogenerated polarons was investigated in P3HT:PCBM solar cells by the photo-CELIV technique. For pristine and annealed devices, we find that the experimental data can be explained by a bimolecular recombination rate reduced by a factor of about 10 (pristine) and 25 (annealed) as compared to Langevin theory. Aided by a macroscopic device model, we discuss the implications of the lowered loss rate on the characteristics of polymer:fullerene solar cells. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2345 / 2347

页数：3

共 12 条

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