Sol-gel Synthesis of SrAl₂O₄:Eu²⁺, SrAl₂O₄:Eu²⁺, Dy³⁺ Long Afterglow Materials

Sol-gel synthesis technique (SST) is adopted to prepare SrAl₂O₄:Eu²⁺, SrAl₂O₄:Eu²⁺, Dy³⁺(SED) long afterglow materials and the analysis is made on the synthesised products with XRD and fluorometer. The temperature in the sintering process to get the optimal materials is 1200～1250℃ lower than in the conventional synthesis technique of the high temperature solid-phase preparation.