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http://acervodigital.unesp.br/handle/11449/24995- Title:
- Intense violet-blue photoluminescence in BaZrO3 powders: A theoretical and experimental investigation of structural order-disorder
- Universidade Federal de São Carlos (UFSCar)
- Universidade de São Paulo (USP)
- Universidade Estadual Paulista (UNESP)
- 0030-4018
- 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.
- 15-Jul-2008
- Optics Communications. Amsterdam: Elsevier B.V., v. 281, n. 14, p. 3715-3720, 2008.
- 3715-3720
- Elsevier B.V.
- BaZrO3
- photoluminescence
- structural order-disorder
- optical absorption behavior and ab-initio calculations
- http://dx.doi.org/10.1016/j.optcom.2008.03.069
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/24995
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