5d→4f luminescence in Sr9Lu(PO4)7 doped with Pr3+ ions

Abstract

This report studies the 5d → 4f radiation transitions in Sr9Lu(PO4)7 doped with Pr3+ (concentrations of Pr3+ were 1 and 5 wt. %) under X-ray and UV- ranges excitation at room temperature and at 88 K. Novel Sr9Lu(PO4)7 phosphors has been prepared through a high temperature solid state reaction in Taiyuan University of Technology, (China). The XRD analysis indicate that the Sr9Lu(PO4)7 host was a single phase and that doping with a small amounts of Pr3+ ions did not induce any significant changes of the crystal structure [2].