Impacto
Downloads
Downloads per month over past year
Malyshev, Andrey and Malyshev, V.A. and Domínguez-Adame Acosta, Francisco (2003) Low-temperature quenching of one-dimensional localized Frenkel excitons. Chemical Physics Letters, 371 (3-4). pp. 417-425. ISSN 0009-2614
Preview |
PDF
175kB |
Official URL: http://dx.doi.org/10.1016/S0009-2614(03)00206-9
Abstract
We present a theoretical analysis of low-temperature quenching of one-dimensional Frenkel excitons that are localized by moderate on-site (diagonal) uncorrelated disorder. Exciton diffusion is considered as an incoherent hopping over localization segments and is probed by the exciton fluorescence quenching at point traps. The rate equation is used to calculate the temperature dependence of the exciton quenching. The activation temperature of the diffusion is found to be of the order of the width of the exciton absorption band. We demonstrate that the intra-segment scattering is extremely important for the exciton diffusion. We discuss also experimental data on the fast exciton-exciton annihilation in linear molecular aggregates at low temperatures.
Item Type: | Article |
---|---|
Additional Information: | © Elsevier Science B.V. All rights reserved. |
Uncontrolled Keywords: | Radiative Lifetime, Superradiant Emission, Dependence, Dynamics, Annihilation, Length, Statistics, Band |
Subjects: | Sciences > Physics > Materials |
ID Code: | 27497 |
Deposited On: | 28 Nov 2014 09:37 |
Last Modified: | 28 Nov 2014 09:37 |
Origin of downloads
Repository Staff Only: item control page