Ultrafast probes of charge transfer states in organic photovoltaic materials

被引：22

作者：

Pensack, Ryan D. ^{[1
]}

Asbury, John B. ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

来源：

CHEMICAL PHYSICS LETTERS | 2011年 / 515卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

OPEN-CIRCUIT VOLTAGE; POLYMER SOLAR-CELLS; ELECTRON-TRANSFER; TEMPERATURE-DEPENDENCE; INFRARED-SPECTROSCOPY; PHOTOCURRENT GENERATION; TRANSFER EXCITONS; DILUTE HOD; DYNAMICS; ENERGY;

D O I：

10.1016/j.cplett.2011.07.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recent efforts to develop spectroscopic probes capable of directly examining charge transfer states in organic photovoltaic materials are reviewed. We describe ultrafast solvatochromism assisted vibrational spectroscopy that takes advantage of the sensitivity of vibrational modes to their local molecular environments in order to examine charge transfer states at electron donor/acceptor interfaces. By measuring the formation and subsequent loss of charge transfer states in real time, it is possible to investigate the mechanisms of their formation and to provide insight into how molecular structure affects the rate and efficiency of their dissociation to form separated charges. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：197 / 205

页数：9

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