Shape controlled synthesis of CaMoO4 thin films and their photoluminescence property
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Data
2008-05-01
Autores
de Azevedo Marques, Ana Paula
Longo, Valeria M.
de Melo, Dulce M. A.
Pizani, Paulo S.
Leite, Edson R.
Varela, José Arana [UNESP]
Longo, Elson [UNESP]
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Editor
Academic Press Inc. Elsevier B.V.
Resumo
CaMoO4 (CMO) disordered and ordered thin films were prepared by the complex polymerization method (CPM). The films were annealed at different temperatures and time in a conventional resistive furnace (RF) and in a microwave (MW) oven. The microstructure and surface morphology of the structure were monitored by atomic force microscopy (AFM) and high-resolution scanning electron microscopy (HRSEM). Order and disorder were characterized by X-ray diffraction (XRD) and optical reflectance. A strong photoluminescence (PL) emission was observed in the disordered thin films and was attributed to complex cluster vacancies. The experimental results were compared with density functional and Hartree-Fock calculations. (C) 2008 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
CaMoO4, photoluminescence, thin films, complex polymerization method, ordered-disordered, ab initio calculations
Como citar
Journal of Solid State Chemistry. San Diego: Academic Press Inc. Elsevier B.V., v. 181, n. 5, p. 1249-1257, 2008.