Channels of the exciton-exciton annihilation in one-dimensional aggregates at low temperature

被引：14

作者：

Malyshev, VA

Kozlov, GG

Glaeske, H

Feller, KH

机构：

[1] Fachhsch Jena, Fachbereich Med Phys Tech, D-07745 Jena, Germany

[2] SI Vavilov State Opt Inst, Natl Res Ctr, St Petersburg 199034, Russia

来源：

CHEMICAL PHYSICS | 2000年 / 254卷 / 01期

关键词：

D O I：

10.1016/S0301-0104(00)00020-3

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：

Exciton-exciton annihilation is implied to be in fact a unique channel of exciton degradation in linear molecular aggregates and conjugated polymers as the pump intensity rises. However, at low temperatures, excitons represent rather immobile than movable quasi-particles due to the localization effect. We analyze possible channels of exciton-exciton annihilation, which seem to be natural ones under the conditions of localization and low temperature, and calculate the corresponding rates. (C) 2000 Elsevier Science B.V. All rights reserved.

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页码：31 / 38

页数：8

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