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http://acervodigital.unesp.br/handle/11449/111428
- Title:
- Photoluminescence properties of CaTiO3:Eu3+ nanophosphor obtained by the polymeric precursor method
- Universidade Federal de São Carlos (UFSCar)
- Universidade Estadual Paulista (UNESP)
- 0254-0584
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- FAPESP: 98/14324-0
- Europium-doped calcium titanate nanophosphors were synthesized by the polymeric precursor method (PPM) at different temperatures. X-ray absorption near edge structure (XANES) spectroscopy reveals that the introduction of Eu3+ ions into the CaTiO3 network induces to significant changes in the local order disorder relationship around both [TiO6] and [CaO12] complex clusters. The X-ray diffraction (XRD) and FT-Raman reveals that the presence of the Eu3+ ions favors the structural organization at long and short ranges, which produces a faster crystallization of the CT orthorhombic phase. The increase of the annealed temperature and the Eu3+ concentration for CT:Eu3+ powders induces to a decrease in the CT:Eu3+ nanoparticle sizes. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.
- 15-May-2014
- Materials Chemistry And Physics. Lausanne: Elsevier Science Sa, v. 145, n. 1-2, p. 141-150, 2014.
- 141-150
- Elsevier B.V.
- Ceramics
- Luminescence
- Nanostructures
- Optical properties
- http://dx.doi.org/10.1016/j.matchemphys.2014.01.051
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/111428 Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp
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