Cavalcante, L. S.Sczancoski, J. C.Longo, V. M.Vicente, Fábio Simões de [UNESP]Sambrano, J. R. [UNESP]de Figueiredo, A. T.Dalmaschio, C. J.Li, M. SiuVarela, José Arana [UNESP]Longo, Elson [UNESP]2013-09-302014-05-202013-09-302014-05-202008-07-15Optics Communications. Amsterdam: Elsevier B.V., v. 281, n. 14, p. 3715-3720, 2008.0030-4018http://hdl.handle.net/11449/24995Intense violet-blue photoluminescence (PL) emission at room temperature was verified in BaZrO3 (BZO) powders with structural order-disorder. Ab-initio calculations, ultraviolet-visible absorption spectroscopy and PL were performed. Theoretical results showed that the local disorder in the network-formed Zr clusters present an important role in the formation of hole-electron pair. The experimental data and theoretical results are in agreement, indicating that the PL emission in BZO powders can be related to the structural order-disorder degree in the lattice. (C) 2008 Elsevier B.V. All rights reserved.3715-3720engBaZrO3photoluminescencestructural order-disorderoptical absorption behavior and ab-initio calculationsArtigo10.1016/j.optcom.2008.03.069WOS:000257047700018Acesso restrito84082163499573780000-0001-7696-3004