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Shape controlled synthesis of CaMoO4 thin films and their photoluminescence property

✍ Scribed by Ana Paula de Azevedo Marques; Valeria M. Longo; Dulce M.A. de Melo; Paulo S. Pizani; Edson R. Leite; José Arana Varela; Elson Longo

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
818 KB
Volume
181
Category
Article
ISSN
0022-4596

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✦ Synopsis

CaMoO 4 (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.

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