Solid state metathesis of CaSO4:Eu2+ phosphor

CaSO4:Dy, is a well known phosphor for radiation dosimetry using thermoluminescence. CaSO4:Eu3+ and CaSO4:Eu2+ phosphors also find applications in radio-photoluminescence dosimetry and photoluminescent liquid crystal displays (PLLCD), respectively. Various syntheses of these phosphors are known. In this paper solid state metathesis of CaSO4:Eu using domestic microwave oven is described for the first time. The synthesis is fast, the entire process being completed within few minutes. The phosphor is characterized using XRD and PL techniques.