LUMINESCENCE OF FREE AND SELF-TRAPPED EXCITONS IN J-AGGREGATES OF QUINO-2-MONOMETHINE CYANINE

Authors
MALYUKIN YV KATRICH GS AINBUND MR KEMNITZ K
Citation
Yv. Malyukin et al., LUMINESCENCE OF FREE AND SELF-TRAPPED EXCITONS IN J-AGGREGATES OF QUINO-2-MONOMETHINE CYANINE, Optics and spectroscopy, 85(4), 1998, pp. 525-528
Citations number
15
Categorie Soggetti
Spectroscopy,Optics
Journal title
Optics and spectroscopy → ACNP
ISSN journal
0030400X
Volume
85
Issue
4
Year of publication
1998
Pages
525 - 528
Database
ISI
SICI code
0030-400X(1998)85:4<525:LOFASE>2.0.ZU;2-W
Abstract
Time-resolved luminescence spectra of J-aggregates of quino-2-monometh ine cyanine containing real exciton traps are studied. It is found tha t free excitons are more efficiently quenched by the traps than the se lf-trapped ones. The structures of quino-2-monomethine cyanine J-aggre gates in the dimethylformamide-water solution and Langmuir-Blodgett fi lm are analyzed, and the applicability of the adiabatic theory of exci ton self-trapping to the interpretation of experimental data are discu ssed.