An Absorption–Fluorescence Method for Estimation of the Efficiency of Nonradiative Relaxation of Cyanine Dyes

Autor:	M. V. Alfimov, M. N. Gulakov, Simone Techert, N. K. Petrov
Rok vydání:	2004
Předmět:	chemistry.chemical_compound Fluorophore Photoisomerization chemistry Excited state Relaxation (NMR) Quantum yield Physical and Theoretical Chemistry Cyanine Photochemistry Spectroscopy Fluorescence
Zdroj:	High Energy Chemistry. 38:381-386
ISSN:	0018-1439
DOI:	10.1023/b:hiec.0000048235.51211.a0
Popis:	Within the framework of stationary optical spectroscopy, a method for estimation of nonradiative relaxation efficiency for the electronically excited state of a fluorophore is suggested using 3,3′-diethylthiacarbocyanine iodide solutions in binary mixtures of toluene and dimethyl sulfoxide (DMSO) as an example. In particular, the quantum yield of dye photoisomerization was found to noticeably decrease upon reducing DMSO content in the mixture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77b4f5d19f8192764bbe46e2d6b5d0ea https://doi.org/10.1023/b:hiec.0000048235.51211.a0 Zobrazit plný text záznamu Plný text ve formátu PDF