Excitons in conjugated oligomer aggregates, films, and crystals

被引：310

作者：

Spano, Frank C. ^{[1
]}

机构：

[1] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA

来源：

ANNUAL REVIEW OF PHYSICAL CHEMISTRY | 2006年 / 57卷

关键词：

fluorescence; polymers;

D O I：

10.1146/annurev.physchem.57.032905.104557

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 experimental and theoretical investigations of excitons in conjugated oligomer nanoaggregates, thin films, and crystals are reviewed. The review focuses on the technologically important unsubstituted oligo-phenylene vinylenes (OPVn) and oligo-thiophenes (Mn). which exhibit side-by-side herringbone crystal packing. Many of the salient photophysical properties displayed by OPVn and OTn solid phases, including the large Davydov splitting, the rich variety of peaks due to vibronic coupling in both absorption and emission, and the unusual behavior of the emission origin. are accounted for in a model including excitonic coupling between molecules, linear exciton-phonon coupling, and disorder.

引用

页码：217 / 243

页数：27

共 139 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].