Development of Trivalent Samarium Ion-Doped Barium Fluoroborotellurite Glasses for Solid-State Lighting and Scintillation Material

Abstract

Abstract In this research we developed Sm3+ ion-doped fluoroborotellurite with formula 30B2O3-(30-x)TeO2-10ZnF2-30BaO-xSm2O3 where x = 0.0; 0.05; 0.1; 0.5; 1.0; and 1.5 mol%. They developed using the melt-quenching technique. The raw material is melted at 1150°C for 1 hour 30 minutes and annealed at 500°C for 1 hour 30 minutes. The optimum concentration was found at 1.0 mol% of Sm3+ ion in the glass system. Their physical, optical, photoluminescence properties and lifetime were observed. The absorption spectra show strong absorption peaks at 1232 nm due to 6H5/2→6F7/2 transition. The photoluminescence properties show a strong emission at 600 nm under λex=403 nm because of 4G5/2→6H7/2 transition. The CIE 1931 coordinate confirms the orange emission color with 81% efficiency (η). From all results, we can summarize that our glass sample can be developed as a solid-state lighting source in the orange region.