Photo-stability of single terrylene molecules in 2,3-dimethylnaphthalene crystals

Autor:	Bolesław Kozankiewicz, D. Wiącek, R. Kościesza, E. Luzina, J. Dresner
Rok vydání:	2009
Předmět:	Excitation spectra Biophysics Analytical chemistry chemistry.chemical_element Photo stability Condensed Matter Physics Photochemistry Fluorescence Oxygen Fluorescence intensity chemistry Molecule Physical and Theoretical Chemistry Molecular Biology Argon atmosphere Helium
Zdroj:	Molecular Physics. 107:1889-1895
ISSN:	1362-3028 0026-8976
DOI:	10.1080/00268970802603515
Popis:	Fluorescence excitation spectra and fluorescence intensity traces of single terrylene molecules in 2,3-dimethylnaphthalene crystals were studied at 5 K and also at temperatures between 200 and 290 K. Terrylene molecules were found to be relatively photo-stable in crystals obtained by cosublimation of both components under an argon atmosphere whereas these molecules were more easily photo-bleached in crystals obtained under a helium atmosphere. It is propose that the diverse behaviour in both groups of crystals is due to different penetration by oxygen and bleaching of terrylene molecules by photo-oxidation. The fully saturated fluorescence detection rates for the (0, 0) and vibronic transitions were studied.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::75526486ccfb910e2d19fc9e9b58ec81 https://doi.org/10.1080/00268970802603515 Zobrazit plný text záznamu