Plasmon-Enhanced Charge Carrier Generation in Organic Photovoltaic Films Using Silver Nanoprisms

被引：331

作者：

Kulkarni, Abhishek P. ^{[1
]}

Noone, Kevin M. ^{[1
]}

Munechika, Keiko ^{[1
]}

Guyer, Samuel R. ^{[1
]}

Ginger, David S. ^{[1
]}

机构：

[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 04期

基金：

美国国家科学基金会;

关键词：

Localized surface plasmon resonance; metal nanoparticles; light trapping; plasmon-enhanced absorption; far-field scattering; plasmon-enhanced solar cells; organic bulk heterojunction; ABSORPTION ENHANCEMENT; OPTICAL-PROPERTIES; SOLAR-CELLS; NANOPARTICLES; SIZE;

D O I：

10.1021/nl100615e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

we use photoinduced absorption spectroscopy to measure long-lived photogenerated charge carriers in optically thin donor/acceptor conjugated polymer blend films near plasmon-resonant silver nanoprisms. We measure up to 3 times more charge generation, as judged by the magnitude of the polaron absorption signal, in 35 nm thin blend films of poly(3-hexylthiophene)/phenyl-C-61-butyric acid methyl ester on top of films of silver nanoprisms (similar to 40-100 nm edge length). we find that the polaron yields increase linearly with the total sample extinction. These excitation enhancements could in principle be used to increase photocurrents in thin organic solar cells.

引用

页码：1501 / 1505

页数：5

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