Energy transfer in π-conjugated polymers:: Interchain vs. intrachain processes in polyindenofluorene

被引:14
作者
Beljonne, D
Pourtois, G
Shuai, Z
Hennebicq, E
Scholes, GD
Brédas, JL
机构
[1] Univ Arizona, Dept Chem, Tucson, AZ 85721 USA
[2] Univ Mons, Ctr Rech Elect & Photon Mol, B-7000 Mons, Belgium
[3] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
[4] Univ Toronto, Lash Miller Chem Labs, Toronto, ON M5S 3H6, Canada
关键词
semi-empirical models; optical absorption and emission spectroscopy; conjugated polymers;
D O I
10.1016/S0379-6779(02)01071-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The energy transfer processes taking place in conjugated polymers are investigated by means of correlated quantum-chemical calculations applied to polyindenofluorene. The calculations go beyond the usual point-dipole model approximation and account for geometric relaxation phenomena in the excited state prior to energy migration. The results indicate a higher efficiency of the interchain transfer process, which is mainly due to larger electronic coupling matrix elements.
引用
收藏
页码:1369 / 1371
页数:3
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