A COMPARATIVE-STUDY OF TEMPERATURE BROADENING OF SPECTRAL HOLES BURNTIN ABSORPTION-BANDS OF MONOMERS AND J-AGGREGATES OF A THIACARBOCYANINE DYE

Authors
DROBIZHEV MA NOVIKOV AV SAPOZHNIKOV MN VARNAVSKY OP VITUKHNOVSKY AG USHOMIRSKY MN
Citation
Ma. Drobizhev et al., A COMPARATIVE-STUDY OF TEMPERATURE BROADENING OF SPECTRAL HOLES BURNTIN ABSORPTION-BANDS OF MONOMERS AND J-AGGREGATES OF A THIACARBOCYANINE DYE, Chemical physics letters, 234(4-6), 1995, pp. 425-430
Citations number
32
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
234
Issue
4-6
Year of publication
1995
Pages
425 - 430
Database
ISI
SICI code
0009-2614(1995)234:4-6<425:ACOTBO>2.0.ZU;2-0
Abstract
J-aggregates and monomers of a thiacarbocyanine derivative are investi gated in glassy matrices by spectral hole burning. The temperature dep endence (at T 4.6-20 K) of the width of the hole burnt in the absorpti on band of aggregates differs qualitatively from that of the hole in t he absorption band of monomers. The hole width for J-aggregates does n ot depend on temperature below 9 K and is equal to 3.3 cm(-1). This re sidual hole width is suggested to be determined by exciton-phonon scat tering with phonon emission.