THE DYNAMICS PROPERTIES ON LUMINESCENCE OF CeF3 CRYSTALS

Abstract

This paper presents temperature dependence of emission spectra (290 nm and 340 nm bands), excitation spectra (250–3000 Å), luminescence decay time as well as their excitation effect for CeF 3 crystals. The results indicate that energy transfer from Ce 3+ to defect centers in the CeF 3 crystals was very efficient as temperature increased. The 340 nm emission band may originate from some defects near Ce 3+, rather than Ce 3+ perturbed defects.