Intense visible photoluminescence in Ba(Zr0.25Ti0.75)O-3 thin films
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
20/05/2014
20/05/2014
01/01/2007
|
| Resumo |
Photoluminescence at room temperature in Ba(Zr0.25Ti0.75)O-3 thin films was explained by the degree of structural order-disorder. Ultraviolet-visible absorption spectroscopy, photoluminescence, and first principles quantum mechanical measurements were performed. The film annealed at 400 degrees C for 4 h presents intense visible photoluminescence behavior at room temperature. The increase of temperature and annealing time creates [ZrO6]-[TiO6] clusters in the lattice leading to the trapping of electrons and holes. Thus, [ZrO5]-[TiO6]/[ZrO6]-[TiO6] clusters were the main reason for the photoluminescence behavior. |
| Formato |
3 |
| Identificador |
http://dx.doi.org/10.1063/1.2425013 Applied Physics Letters. Melville: Amer Inst Physics, v. 90, n. 1, 3 p., 2007. 0003-6951 http://hdl.handle.net/11449/25429 10.1063/1.2425013 WOS:000243379900023 WOS000243379900023.pdf |
| Idioma(s) |
eng |
| Publicador |
American Institute of Physics (AIP) |
| Relação |
Applied Physics Letters |
| Direitos |
closedAccess |
| Tipo |
info:eu-repo/semantics/article |
