Optical study of a novel dielectric ternary crystal doped with europium

Abstract In this work we report the optical characterization of a ternary crystal: KCl(0.5):KBr(0.25):RbBr(0.25) doped with europium(0.1%), all concentrations in molar fraction. The powder diffraction spectra of this crystal shows only one phase, meaning this material is a single crystal of fcc type. Optical absorption and time resolved photoluminescence analysis are based on the optical activity of the (Eu 2+ ) ion in the alkali-halide crystals. Additionally, optical absorption of F centers induced by exposition to β-irradiated ternary crystals was also obtained. Both results have indicated a behavior corresponding with a crystalline solid solution having its own physical characteristics so that it has a well defined lattice constant.