Exciton coupling in oligothiophenes:: A combined experimental theoretical study

被引：11

作者：

Beljonne, D

Langeveld-Voss, BMW

Shuai, Z

Janssen, RAJ

Meskers, SCJ

Meijer, EW

Brédas, JL

机构：

[1] Univ Mons, Lab Chem Novel Mat, B-7000 Mons, Belgium

[2] Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands

来源：

SYNTHETIC METALS | 1999年 / 102卷 / 1-3期

关键词：

electron density; excitation spectra calculations; optical absorption and emission spectroscopy;

D O I：

10.1016/S0379-6779(98)00953-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of exciton coupling on the optical properties of oligothiophenes is studied by means of optical and circular dichroism (CD) spectroscopy. The CD spectrum of a model compound, formed by two terthienyl chromophores arranged in a chiral orientation, displays two bands with opposite signs that can be related to the two Davydov components of the first optical transition. From correlated quantum-chemical calculations, the Davydov splitting is estimated to be on the order of 0.15-0.2 eV.

引用

页码：912 / 913

页数：2

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