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http://acervodigital.unesp.br/handle/11449/39686
- Title:
- The effects of ZnGa2O4 formation on structural and optical properties of ZnO : Ga powders
- Universidade Estadual Paulista (UNESP)
- 0022-4596
- Gallium-doped zinc oxide (ZnO:Ga 1, 2 3, 4 and 5 at%) samples were prepared in powder form by modifying the Pechini method. The formation of zinc gallate (ZnGa2O4) With the spinel crystal structure was observed even in ZnO:Ga 1 at% by X-ray diffraction. The presence of ZnGa2O4 in ZnO:Ga samples was also evidenced by luminescence spectroscopy through its blue emission at 430 nm, assigned to charge transfer between Ga3+ at regular octahedral symmetry and its surrounding O2- ions. The amount of ZnGa2O4 increases as the dopant concentration increases, as observed by the quantitative phase analysis by the Rietveld method. (C) 2006 Elsevier B.V. All rights reserved.
- 1-May-2006
- Journal of Solid State Chemistry. San Diego: Academic Press Inc. Elsevier B.V., v. 179, n. 5, p. 1330-1334, 2006.
- 1330-1334
- Elsevier B.V.
- zinc gallate
- impurities in semiconductors
- crystal structure and symmetry
- optical properties
- doping
- ZnO : Ga
- ZnGa3O4
- Pechini method
- http://dx.doi.org/10.1016/j.jssc.2006.01.046
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/39686
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