Controlling inter-chain and intra-chain excitations of a poly(thiophene) derivative in thin films

被引：42

作者：

Berggren, M

Bergman, P

Fagerström, J

Inganäs, O ^{[1
]}

Andersson, M

Weman, H

Granström, M

Stafström, S

Wennerström, O

Hjertberg, T

机构：

[1] Linkoping Univ, Appl Phys Lab, S-58183 Linkoping, Sweden

[2] Linkoping Univ, Theoret Phys Lab, S-58183 Linkoping, Sweden

[3] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 304卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)00261-4

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：

The decay of photoexcitations in polythiophene chains has been studied in solid solutions of the polymer from room temperature to 4 K. A strong blue shift of the emission spectrum is observed in the polymer blend, as compared to the homopolymer. Dispersion of the polythiophene suppresses the non-radiative processes, which are suggested to be correlated to close contacts of polymer chains. Quantum chemistry modeling of the excited state distributed on two chains corroborate this conclusion. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：84 / 90

页数：7

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