Theory of exciton migration and field-induced dissociation in conjugated polymers

被引：58

作者：

Vissenberg, MCJM ^{[1
]}

deJong, MJM ^{[1
]}

机构：

[1] LEIDEN UNIV,INST LORENTZ,NL-2300 RA LEIDEN,NETHERLANDS

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.77.4820

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interplay of migration, recombination, and dissociation of excitons in disordered media is studied theoretically in the low temperature regime. An exact expression for the photoluminescence spectrum is obtained. The theory is applied to describe the electric field-induced photoluminescence-quenching experiments by Kersting et al. [Phys. Rev. Lett. 73, 1440 (1994)] and Deussen et al. [Synth. Met. 73, 123 (1995)] on conjugated polymer systems. Good agreement with experiment is obtained using an on-chain dissociation mechanism, which implies a separation of the electron-hole pair along the polymer chain.

引用

页码：4820 / 4823

页数：4

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