Title: Non-coherent exciton migration in J-aggregates of the dye THIATS: exciton-exciton annihilation and fluorescence depolarization
Authors: Scheblykin, IG ×
Varnavsky, OP
Bataiev, MM
Sliusarenko, O
Van der Auweraer, Mark
Vitukhnovsky, AG #
Issue Date: Jan-1998
Publisher: Elsevier science bv
Series Title: Chemical Physics Letters vol:298 issue:4-6 pages:341-350
Abstract: Exciton-exciton annihilation (EEA) in J-aggregates of 3,3'-disulfopropyl-5,5'-dichloro-9-ethylthiacarbocyanine in solution at room temperature and at 77 K was related to incoherent exciton migration within large aggregate domains. Inside a domain, the rate constant for EEA was estimated to be at least 1.5 times smaller than that of exciton decay. The experimental results were incompatible with one-dimensional incoherent exciton transport. The intensity dependence of the fluorescence anisotropy decay was assigned to EEA. At 77 K and in the absence of EEA, the average angle of the transition dipole changed less than 25 degrees during exciton migration over a domain. (C) 1998 Elsevier Science B.V. All rights reserved.
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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