Interfacial photoluminescence emission properties of core/shell Al2O3/ZrO2
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
20/05/2014
20/05/2014
01/01/2012
|
| Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) This research investigated the synthesis of the Al2O3/ZrO2 core-shell system using a polymeric precursor method. The interfacial features emission show the possibility for control of the luminescence behaviour. X-ray diffraction (XRD) patterns are well defined for alpha-Al2O3 and for gamma-Al2O3, core structures and a zirconia shell phase for high concentrations. Photoluminescence (PL) spectra (lambda(exc) = 350.7 nm) reveal that the effect of the zirconia coating on the alumina was more effective for alpha-Al2O3 than for gamma-Al2O3 which may be related to the zirconia coating process on alumina. The image transmission electron microscopy (TEM) shows an amorphous region of 10 nm which is attributed to a ZrO2 shell layer. |
| Formato |
393-396 |
| Identificador |
http://dx.doi.org/10.1039/c1ce06099f Crystengcomm. Cambridge: Royal Soc Chemistry, v. 14, n. 2, p. 393-396, 2012. 1466-8033 http://hdl.handle.net/11449/41238 10.1039/c1ce06099f WOS:000298839400012 |
| Idioma(s) |
eng |
| Publicador |
Royal Soc Chemistry |
| Relação |
CrystEngComm |
| Direitos |
closedAccess |
| Tipo |
info:eu-repo/semantics/article |
