Synthesis and optical property of MgMoO4 crystals

Electroceramics Vi Volume: 975 Pages: 243-247 Published: 2014

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Writers:  Camila Soares Xavier, Ana Paula de Moura, Elson Longo, José Arana Varela, Maria Aparecida Zaghete

Keywords: MgMoO4, Mixed Oxide, Photoluminescence

Abstract: In this work, we report on the synthesis of MgMoO4 crystals by oxide mixed method. The powder was calcined at 1100 °C for 4h and analyzed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Field emission gun scanning electron microscopy (FEG-SEM), Ultraviolet-visible (UV-vis) absorption spectroscopy and Photoluminescence (PL) measurement. XRD analyses revealed that the MgMoO4 powders crystallize in a monoclinic structure and are free secondary phases. UVvis technique was employed to determine the optical band gap of this material. MgMoO4 crystals exhibit an intense PL emission at room temperature with maximum peak at 579 nm (yellow region) when excited by 350 nm wavelength at room temperature.

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