Characterization and Optical Properties of Eu and Dy Doped SrAl2O4 Phosphors

Abstract

In this paper we report the synthesis, characterization and optical properties of SrAl2O4 phosphors prepared by combustion
technique. The samples are prepared at 600oC for 5 minutes. The as prepared samples are characterized through SEM and XRD
measurements. The XRD pattern exhibits multiple peaks corresponding to SrAl2O4 while SEM micrographs show non-uniform distribution of grains. The average particle size of the sample is estimated to lay around 120 nm. The Photoluminescent (PL) emission spectrum peaks at 446 nm, which is attributed to 4f65d1 to 4f7 configuration of Eu ions.