Photoluminescence of barium-calcium titanates obtained by the microwave-assisted hydrothermal method (MAH)
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
20/05/2014
20/05/2014
12/03/2010
|
| Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Ba1-xCaxTiO3 (x = 0, 0.25, 0.50, 0.75, and 1.0) samples report the association of three types of clusters synthesized by the microwave-assisted hydrothermal at 140 degrees C for 40 min. In order to evaluate influence of structural order-disorder degree among them, photoluminescence (PL) emission, X-ray diffraction, FT-Raman spectroscopy and Ultraviolet-Visible absorption were used. The PL emission of the crystalline phases grows up with the calcium concentration and reaches the highest PL emission to 0.75 Ca concentration, which is supported by the symmetry break caused by the phase transition. This PL emission is higher than that of the CaTiO3 phase. (C) 2010 Elsevier B.V. All rights reserved. |
| Formato |
54-56 |
| Identificador |
http://dx.doi.org/10.1016/j.cplett.2010.01.065 Chemical Physics Letters. Amsterdam: Elsevier B.V., v. 488, n. 1-3, p. 54-56, 2010. 0009-2614 http://hdl.handle.net/11449/6968 10.1016/j.cplett.2010.01.065 WOS:000275142000011 |
| Idioma(s) |
eng |
| Publicador |
Elsevier B.V. |
| Relação |
Chemical Physics Letters |
| Direitos |
closedAccess |
| Tipo |
info:eu-repo/semantics/article |
