Synthesis and Luminescence Properties Behavior of Eu3+-doped Nanocrystalline and Bulk GdVO4 Phosphors by High-Energy Ball Milling and Solid State Reaction
Europium-doped nanosized-GdVO4:Eu3+ powders and bulk GdVO4:Eu3+ powders were synthesized using a planetary ball mill and conventional solid state reaction method, respectively. The effects of the grain size on the crystallinity, morphology, structure and luminescence spectra were investigated by X-ray diffraction, field emission-scanning electron microscopy and photoluminescence spectroscopy (PL). The room temperature PL spectra of the GdVO4:Eu3+ nanophosphors showed four emission bands at 611, 615, 619 and 595 nm. The bands at 611, 615 and 619 nm were assigned to the 5D0→7F2 transition of the Eu3+ ion when excited with 312 nm light.
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Document Type: Research Article
Publication date: January 1, 2011
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