Visible luminescence properties of Sm3+-dope barium gadolinium glasses

A series of barium gadolinium borate glasses doped with Sm3+ ions in chemical composition of 20BaO:10Gd2O3:(70-x)B2O3: xSm2O3 were synthesized by melt quenching technique, at different Sm2O3 concentration varying from 0.0 to 1.5 mol%. The prepared glasses were systematically characterized their properties through density, molar volume, absorption, excitation and emission spectra. The density and molar volume of glasses increased with increasing of Sm2O3 in higher concentration. The absorption spectra show characteristic peaks of Sm3+ in visible and infrared regions. The emission spectra show the strongest reddish-orange emission at 598 nm under excitation at 403 nm. The CIE1931 chromaticity coordinate shows that all glasses emitted the orange color, which could be used as orange emitting material applications.