Borosilicate luminescent material and preparing method thereof

摘要

Provided are a luminescent material and a preparing method thereof. The borosilicate luminescent material has a chemical formula of aM₂O.bLn₂O₃.cAl₂O₃.dR₂O₃.eSiO₂.fCeO₂.gTb₂O₃ or aMO.bLn₂O₃.cAl₂O₃.dR₂O₃.eSiO₂.fCeO₂.gTb₂O₃, wherein M is alkaline earth metal or alkali metal, Ln is one or two elements selected from the group consisting of elements Y and Gd; R is one or two elements selected from the group consisting of elements B and P; a, b, c, d, e, f, and g are molar fractions, and 6≦a≦20, 3≦b≦12, 20≦c≦30, 32≦d≦45, 0≦e≦12, 0.01≦f≦1, and 0.05≦g≦1.5. The preparing methods comprises the following steps: 1) selecting source compounds of above elements; 2) mixing and grinding the source compounds to obtain a mixture; 3) presintering the mixture, then grinding the mixture; 4) sintering under reducing atmosphere, and cooling, thereby obtaining the luminescent material.