Preparation of light- emitting material good performance

Sol - gel (So1-ge1) method is a very broad application prospects of nano- powder synthesis method , its main advantage is that at lower temperature synthetic products , and products with small particle size uniformity is good.Phosphorescent sand this SrAl2O4: Eu2 +, Dy3 + , the precursor material is an organic compound solution containing aluminum , with activator of activator, flux , catalyst compounds are organic solutions or aqueous mixture , water was added , remain in solution 2 ~ 3d, to form a gel , drying , removal of organic material , after ignition , and photoluminescent pigments N2 + H2 atmosphere ignition reduction derived carbon storage material . Sol - gel method can be prepared very good performance at the light emitting material , the reaction can be well controlled.