Intermolecular energy transfer in mixed laser dyes: photophysical properties of triplet states

Autor:	N N Math, M. I. Savadatti, A D Mulla
Rok vydání:	1991
Předmět:	Dye laser Materials science business.industry Intermolecular force General Physics and Astronomy Photochemistry Laser Acceptor Fluorescence law.invention Förster resonance energy transfer law Optoelectronics Quantum efficiency business Phosphorescence
Zdroj:	Pramana. 36:639-645
ISSN:	0973-7111 0304-4289
DOI:	10.1007/bf02845802
Popis:	Triplet-singlet energy transfer in laser dyes have been studied in EPA at 77K using N2 laser as an excitation source. Phosphorescence of the donor (D) and the delayed fluorescence of the acceptor (A) and their lifetimes have been measured for coumarin 102 (D)-rhodamine B(A) and 9(10H)-acridone (D)-rhodamine 6G(A) dye systems as a function of acceptor concentration. These data yield energy transfer rate constants of ∼103 dm3 mol−1 s−1 for the donor acceptor combinations, consistent with the Forster mechanism. The phosphorescence quantum efficiency and other spectral parameters are also reported.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e33735a7ea580b5e81ba25c65044886 https://doi.org/10.1007/bf02845802 Zobrazit plný text záznamu Full text from SpringerLink