Intense violet-blue photoluminescence in BaZrO3 powders: A theoretical and experimental investigation of structural order-disorder
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
20/10/2012
20/10/2012
2008
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| 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. |
| Identificador |
OPTICS COMMUNICATIONS, v.281, n.14, p.3715-3720, 2008 0030-4018 http://producao.usp.br/handle/BDPI/29774 10.1016/j.optcom.2008.03.069 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV |
| Relação |
Optics Communications |
| Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #BaZrO3 #photoluminescence #structural order-disorder #optical absorption behavior and ab-initio calculations #THIN-FILMS #LUMINESCENCE #PEROVSKITES #DENSITY #SRTIO3 #GROWTH #Optics |
| Tipo |
article original article publishedVersion |
