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Photoluminescence study of terbium-exchanged ultrastable Y zeolites: number of species, photoluminescence decays, and decay-associated spectra

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Photoluminescence study of terbium-exchanged ultrastable Y zeolites: number of species, photoluminescence decays, and decay-associated spectra

dc.contributor.author	Tiseanu, C.
dc.contributor.author	Lórenz Fonfría, Victor Armando
dc.contributor.author	Parvulescu, V.I.
dc.contributor.author	Gessner, A.
dc.contributor.author	Kumke, M.U.
dc.date.accessioned	2015-12-17T12:31:38Z
dc.date.available	2015-12-17T12:31:38Z
dc.date.issued	2008
dc.identifier.citation	Tiseanu, C. Lórenz Fonfría, Victor Armando Parvulescu, V.I. Gessner, A. Kumke, M.U. 2008 Photoluminescence study of terbium-exchanged ultrastable Y zeolites: number of species, photoluminescence decays, and decay-associated spectra Journal of Applied Physics 104 033530 033539
dc.identifier.uri	http://hdl.handle.net/10550/49594
dc.description.abstract	Terbium-exchanged ultrastable Y (USY) zeolites were investigated by using time-resolved photoluminescence spectroscopy techniques and methods. To determine the distribution of terbium species in USY zeolites together with their photoluminescence properties, several analysis methods for the time-resolved luminescence spectra were used such as the area normalization of time-resolved photoluminescence spectra, singular value decomposition, global nonlinear least squares, and the maximum entropy. Except for a questionable long lifetime, small contribution of a terbium species with lifetime of 1.9¿2.1 ms, all the experimental and analysis results converged to a two terbium species distribution with lifetimes varying between 410¿440 and 1000¿1100 μ s . The effects of the silylation of terbium-exchanged USY zeolites with phenyl-, vinyl-, and hexadecyltrimethoxysilanes on the lanthanide¿s photoluminescence properties were also described.
dc.language.iso	eng
dc.relation.ispartof	Journal of Applied Physics, 2008, vol. 104, p. 033530-033539
dc.subject	Química analítica
dc.subject	Física
dc.subject	Ciència dels materials
dc.title	Photoluminescence study of terbium-exchanged ultrastable Y zeolites: number of species, photoluminescence decays, and decay-associated spectra
dc.type	journal article	es_ES
dc.date.updated	2015-12-17T12:31:39Z
dc.identifier.doi	10.1063/1.2966304
dc.identifier.idgrec	107582
dc.rights.accessRights	open access	es_ES