期刊
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
卷 2, 期 4, 页码 175-177出版社
WILEY-BLACKWELL
DOI: 10.1002/pssr.200802110
关键词
-
资金
- Bavarian Ministry of Economic Affairs, Infrastructure, Transport and Technology
The power conversion efficiency of organic solar cells based on donor-acceptor blends is governed by an interplay of polaron pair dissociation and bimolecular polaron recombination. Both processes are strongly dependent on the charge carrier mobility, the dissociation increasing with faster charge transport, with raised recombination losses at the same time. Using a macroscopic effective medium simulation, we calculate the optimum charge carrier mobility for the highest power conversion efficiency, for the first time accounting for injection barriers and a reduced Langevin type recombination. An enhancement of the charge carrier mobility from 10-8, m(2)/V s for state of the art polymer-fullerene solar cells to about 10-6 m(2)/V s, which yields the maximum efficiency, corresponds to an improvement of only about 20% for the given parameter set. (c) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据