KSrPO4:Eu2+ was synthesized by polymerized complex microwave reduction method, which is a new method utilizing microwave reduction for precursor prepared by polymerized complex method. KSrPO4:Eu2+ without any other phase was successfully obtained by the new method. The grain size prepared by the new method was small and homogeneous in comparison with usual method utilizing solid state reaction. Blue emission band around 427 nm was observed under UV excitation around 320 similar to 350 nm. Eu concentration quenching was found to occur above 0.5%. Temperature dependence of photoluminescence showed good thermal stability. Phonon energy coupled with excited state was estimated to be 23 similar to 26 meV using configuration coordinate model.

Keywords: Phosphor; Polymerized complex method; KSrPO4:Eu; Microwave reduction