Optical absorption spectra of linear and cyclic thiophenes-selection rules manifestation

被引:78
作者
Bednarz, M
Reineker, P
Mena-Osteritz, E
Bäuerle, P
机构
[1] Univ Ulm, Theoret Phys Abt, D-89069 Ulm, Germany
[2] Univ Ulm, Abt Organ Chem 2, D-89069 Ulm, Germany
关键词
oligothiophenes; cyclothiopbenes; Frenkel excitons; optical absorption;
D O I
10.1016/j.jlumin.2004.08.013
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We theoretically study the size-dependent relation between absorption spectra of thiophene-based oligomers and the corresponding cyclothiophenes. In our approach based on a Frenkel exciton Hamiltonian, we demonstrate that the geometry and selection rules determine the observed relations between the spectra. (C) 2004 Elsevier B.V. All rights reserved.
引用
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页码:225 / 231
页数:7
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