Room temperature photoluminescence of the Li2ZnTi3O8spinel: Experimental and theoretical study

Autor:	Paulo S. Pizani, Armando Beltrán, T. M. Boschi, M. F. C. Gurgel, Edson R. Leite, Sergio Ricardo de Lazaro, M. S. C. Câmara, Elson Longo
Rok vydání:	2005
Předmět:	Materials science Photoluminescence Annealing (metallurgy) Spinel Ab initio Analytical chemistry engineering Photoluminescence excitation Treatment time Physical and Theoretical Chemistry engineering.material Condensed Matter Physics Atomic and Molecular Physics and Optics
Zdroj:	International Journal of Quantum Chemistry. 103:580-587
ISSN:	0020-7608
Popis:	This article describes the characterization of intense photoluminescence observed at room temperature of the Li2ZnTi3O8 spinel phase, obtained by the polymeric precursor method. The evolution of visible photoluminescence is demonstrated by measurement of the photoluminescence signal as a function of the annealing treatment time. The evolution indicates that PL can be attributed to the presence of an inorganic disordered phase. In addition, increased annealing treatment times cause not only a decrease in the total residual content of organic material in the samples, but also an intensified photoluminescence. We discuss the nature of visible photoluminescence at room temperature of the Li2ZnTi3O8 spinel phase in the light of results of both recent experimental and quantum mechanical theoretical studies. © 2005 Wiley Periodicals, Inc. Int J Quantum Chem, 2005
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80f0d603e777c5c7ecc1fcca95b5b32d https://doi.org/10.1002/qua.20549 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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