How High Local Charge Carrier Mobility and an Energy Cascade in a Three-Phase Bulk Heterojunction Enable >90% Quantum Efficiency

被引：240

作者：

Burke, Timothy M. ^{[1
]}

McGehee, Michael D. ^{[1
]}

机构：

[1] Stanford Univ, Stanford, CA 94305 USA

来源：

ADVANCED MATERIALS | 2014年 / 26卷 / 12期

基金：

美国国家科学基金会;

关键词：

bulk heterojunction; polymer solar cell; Monte Carlo simulation; geminate pair separation; POLYMER SOLAR-CELLS; RESOLVED TERAHERTZ SPECTROSCOPY; POWER-CONVERSION EFFICIENCY; GEMINATE RECOMBINATION; PHOTOVOLTAIC DEVICES; DISSOCIATION; SEPARATION; DYNAMICS; FILMS; SIMULATIONS;

D O I：

10.1002/adma.201304241

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Charge generation in champion organic solar cells is highly efficient in spite of low bulk charge-carrier mobilities and short geminate-pair lifetimes. In this work, kinetic Monte Carlo simulations are used to understand efficient charge generation in terms of experimentally measured high local charge-carrier mobilities and energy cascades due to molecular mixing. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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页码：1923 / 1928

页数：6

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