Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders

Cavalcante, L. S.; Zampieri, M.; Espinosa, J. W.  M.; Pizani, Paulo Sérgio; Paskocimas, Carlos Alberto; Sambrano, Julio Ricardo; Silva, Elson Longo da; Varela, José A.; Simões, M. L.; Longo, V. M.

Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders

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dc.contributor.author	Cavalcante, L. S.
dc.contributor.author	Zampieri, M.
dc.contributor.author	Espinosa, J. W. M.
dc.contributor.author	Pizani, Paulo Sérgio
dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Sambrano, Julio Ricardo
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Varela, José A.
dc.contributor.author	Simões, M. L.
dc.contributor.author	Longo, V. M.
dc.date.accessioned	2021-04-13T14:58:20Z
dc.date.available	2021-04-13T14:58:20Z
dc.date.issued	2008
dc.description.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 ·VO z complex clusters, where VO z =VO x , VO • , and VO ••, 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	pt_BR
dc.identifier.citation	CAVALCANTE, L. S.; LONGO, V. M. ; ZAMPIERI, M.; ESPINOSA, J. W. M.; PIZANI, P. S.; SAMBRANO, J. R. ; VARELA, J. A.; LONGO, E.; SIMÕES, M. L.; PASKOCIMAS, C. A.. Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO[sub 3] powders. Journal of Applied Physics, v. 103, p. 063527, 2008. Disponível em: https://aip.scitation.org/doi/10.1063/1.2901176 Acesso em: 13 abr. 2021. https://doi.org/10.1063/1.2901176	pt_BR
dc.identifier.doi	10.1063/1.2901176
dc.identifier.issn	0021-8979
dc.identifier.issn	1089-7550
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32190
dc.language	en	pt_BR
dc.publisher	American Institute of Physics	pt_BR
dc.subject	Green photoluminescence	pt_BR
dc.title	Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders	pt_BR
dc.type	article	pt_BR