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.