Emission properties of Eu~(3+) ions in ZnCl_2-BaCl_2-KCl glass

摘要

In this short communication, we present the results concerning the excitation and emission spectra of 1 mol percent Eu~(3+) -doped 50ZnCl_2 + 20BaCl_2 + 29KC1 glass. A bright red color emission was observed under an UV source from this glass. The photoluminescence spectra have shown prominent red emission transition (~5D_0 → ~7F_2) at 610 nm along with three other weak emission transitions of ~5D_0 →~7F_(0, 1 and 3) at 580, 598 and 650 nm upon excitation with six identified excitation bands. Dependence of the emission intensities and lifetimes based on the excitation wavelengths employed has been investigated.