Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
15/03/2008
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Resumo |
Very intense visible green photoluminescence (PL) was observed at room temperature in structurally ordered-disordered BaZrO3 powders. Ab initio calculations, ultraviolet-visible absorption spectroscopy, electron paramagnetic resonance, and PL were performed. Theoretical and experimental results showed that local defects in the cubic structure caused by [ZrO5 center dot V-O(z)] complex clusters, where V-O(z) = V-O(x), V-O(center dot), and V-O(center dot center dot), play an important role in the formation of hole-electron pairs, giving rise to a charge gradient in the structure which is responsible for PL emission. (c) 2008 American Institute of Physics. |
Formato |
8 |
Identificador |
http://dx.doi.org/10.1063/1.2901176 Journal of Applied Physics. Melville: Amer Inst Physics, v. 103, n. 6, p. 8, 2008. 0021-8979 http://hdl.handle.net/11449/8611 10.1063/1.2901176 WOS:000254536900043 WOS000254536900043.pdf |
Idioma(s) |
eng |
Publicador |
American Institute of Physics (AIP) |
Relação |
Journal of Applied Physics |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |