Application the Yellow Phosphor and Luminescence Characteristics of SrSiO3:xEu2+ Synthesized by Hydrothermal Synthesis Process

Yellow white phosphor SrSiO₃ powders are synthesized using hydrothermal reaction followed by calcination in 95%N₂-5%H₂ at 900degC/3 hr. The as- prepared material showed homogeneous and stoichiometric mixing of nanosized Sr(NO₃)₂ and Na₂SO₃ particles. X-ray diffraction studies indicated orthorhombic symmetry for the final calcined SrSiO₃ powders. The absorption spectra of phosphors sintered at temperatures demonstrated that the phosphor could absorb the photos at blue region (440 nm~470 nm). Beside temperature at 900degC photoluminescence measurements showed a broad peak at 565 nm. The hydrothermal method is found to be simple, rapid and helps in achieving the required stoichiometry and homogeneity of precursor materials as compared to the conventional solid state reaction route.