Abstract
A series of barium tungstate (BaWO(4)) phosphors were synthesized by the solid state reaction method, and the systematic effect of Dy(3+)/Sr(2+) doping concentration on the structural and photoluminescence (PL) properties were investigated. X-ray diffraction studies confirm the structure of the phosphors as tetragonal with space group I4(1)/a. The PL emission spectra show two peaks in the blue and yellow regions which were tuned to produce near-white emission. The quality of the white light was checked by estimating CIE parameters. This indicates the suitability of barium-tungstate-based phosphors for near-white LED applications.
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