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Enhanced Red Emission from YVO_4:Eu^(3+) Nano Phosphors Prepared by Simple Co-precipitation Method
Bhaskar Kumar Grandhe,Vengala Rao Bandi,Kiwan Jang,Sundara Ramaprabhu,이성수,Jung-Hyun Jeong 대한금속·재료학회 2011 ELECTRONIC MATERIALS LETTERS Vol.7 No.2
Eu^(3+) doped YVO4 nano phosphors were synthesized by adopting a simple Co-Precipitation Method (CPM). In order to compare and evaluate this method’s potentiality, we prepared the same phosphor by using a conventional Solid State Reaction method (SSR). X-Ray Diffraction (XRD) profile confirms the tetragonal nature of Eu^(3+) doped YVO4 nano phosphors. The efficiency of the prepared phosphors was analyzed by means of its emission spectral profiles. We also observed a rich red emission from the prepared phosphors under a Ultra-Violet (UV) source. Such luminescent powders are expected to be applied as red phosphors in display device applications. In addition, Scanning electron microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), Fourier-Transform IR spectroscopy (FTIR), and Raman Spectrum were also used to characterize the synthesized phosphor.