FORWARD AND REVERSE EXCITATION-ENERGY TRANSPORT IN CONCENTRATED 2-COMPONENT SYSTEMS

Citation
P. Bojarski et L. Kulak, FORWARD AND REVERSE EXCITATION-ENERGY TRANSPORT IN CONCENTRATED 2-COMPONENT SYSTEMS, Chemical physics, 220(3), 1997, pp. 323-336
Citations number
37
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
ISSN journal
03010104
Volume
220
Issue
3
Year of publication
1997
Pages
323 - 336
Database
ISI
SICI code
0301-0104(1997)220:3<323:FARETI>2.0.ZU;2-4
Abstract
The experimental and numerical study of the forward and reverse energy transport in concentrated two-component solutions is presented. Exper imental results are compared with those of diagrammatic and hopping th eories. It is shown that the effect of direct acceptor excitation by t he light beam is important in the presence of the reverse transfer and it must be taken into account to describe correctly the experimental results within the framework of any theoretical model. This effect lea ds in particular to the decrease in the donor emission anisotropy and to the increase in its quantum yield. Our analysis indicates the advan tage of the diagrammatic model over the hopping approach. (C) 1997 Els evier Science B.V.