Exciton dissociation dynamics in a conjugated polymer containing aggregate states

被引：38

作者：

Haugeneder, A

Lemmer, U

Scherf, U

机构：

[1] Univ Munich, Lehrstuhl Photon & Optoelekt, Sekt Phys & CeNS, D-80799 Munich, Germany

[2] Univ Potsdam, Inst Phys & Theoret Chem, D-14476 Golm, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 351卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(01)01343-4

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：

We study the exciton dynamics in ladder-type poly(p-phenylene) (LPPP) containing aggregate states under high electric field conditions. Time-resolved emission spectroscopy reveals a different dissociation behaviour of S-1-intrachain excitons as compared to excitons located in aggregate states. No acceleration of the decay of aggregate excitons due to field-induced dissociation is found for electric fields up to 2 x 10(6) V/cm. The time-integrated photoluminescence quenching does not exhibit a strong spectral dependence and is completely due to the dissociation of initially excited S-1-intrachain excitons. (C) 2002 Published by Elsevier Science B.V.

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页码：354 / 358

页数：5

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