Exciton dynamics in molecular aggregates

被引：15

作者：

Augulis, R. ^{[1
]}

Pugzlys, A. ^{[1
]}

van Loosdrecht, P. H. M. ^{[1
]}

机构：

[1] Univ Groningen, Ctr Mat Sci, Nijenborgh 4, NL-9747 AG Groningen, Netherlands

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 10 | 2006年 / 3卷 / 10期

关键词：

D O I：

10.1002/pssc.200672105

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The fundamental aspects of exciton dynamics in double-wall cylindrical aggregates of cyanine dyes are studied by means of frequency resolved femtosecond pump-probe spectroscopy. The collective excitations of the aggregates, resulting from intermolecular dipole-dipole interactions have the characteristic property - the localization of the lowest lying exciton states. The experimentally observed outer-to-inner tubule excitonic energy transfer dynamics and the internal energy relaxation at low temperatures reveal a non-equilibrium population of the excitonic subsystem. The analysis of measured dynamics reveals very fast picosecond timescale energy relaxation to the optically active energy states. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：3400 / +

页数：2

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