Intense violet-blue photoluminescence in BaZrO3 powders: A theoretical and experimental investigation of structural order-disorder


Autoria(s): Cavalcante, L. S.; Sczancoski, J. C.; Longo, V. M.; Vicente, Fábio Simões de; Sambrano, J. R.; de Figueiredo, A. T.; Dalmaschio, C. J.; Li, M. Siu; Varela, José Arana; Longo, Elson
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

30/09/2013

20/05/2014

30/09/2013

20/05/2014

15/07/2008

Resumo

Intense 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.

Formato

3715-3720

Identificador

http://dx.doi.org/10.1016/j.optcom.2008.03.069

Optics Communications. Amsterdam: Elsevier B.V., v. 281, n. 14, p. 3715-3720, 2008.

0030-4018

http://hdl.handle.net/11449/24995

10.1016/j.optcom.2008.03.069

WOS:000257047700018

Idioma(s)

eng

Publicador

Elsevier B.V.

Relação

Optics Communications

Direitos

closedAccess

Palavras-Chave #BaZrO3 #photoluminescence #structural order-disorder #optical absorption behavior and ab-initio calculations
Tipo

info:eu-repo/semantics/article