Studies on Preparation of Long Afterglow Luminescence Glass and Its Properties

SrA2O4: Eu,Dy long afterglow luminescence powders are synthesized by the traditional ceramic synthesis method. The excitation peaks lie in 320nm and 360nm, and the emission peak lies in 520nm, the afterglow time may reach above 8h. Employed the low melt point B-Si glass as the matrix, doped the luminescence materials, and prepared the long afterglow luminescence glass. The results indicated the sintered temperature had great influence on the luminescent properties of the glass, as the temperature increasing, the luminescent intensity and the afterglow time decreased.