Synthesis of Ca2 ZnSi2O7 ：Eu solid - state reaction and its phosphor by a modified luminescent properties

This paper reports the detailed preparation and phosphorescence properties of Eu^2＋ - activated Ca2ZnSi2O7 phosphors by a modified solid - state reaction. Phase - pure crystalline Ca2ZnSi2O7 is obtained at 600℃, a much lower temperature than by conventional solid - state reaction and the preparation process of Ca2ZnSi2O7 is simple. The obtained phosphors showed three emission peaks at 480,580 and 620 nm,respeetivety. Auxiliary activator R3＋（ R = Dy, Nd, Tm） would enhance their luminescent properties.