Structural and Optical Properties of Samarium oxide Zinc Tellurite Glass System Doped with Silver Oxide

Abstract

Samarium oxide zinc tellurite glass system doped with silver oxide with composition of [{(TeO2)0.7 (ZnO) 0.3}0.99 (Sm2O3) 0.01]1-y (Ag2O) y, y = 0.005. 0.01, 0.015, 0.02 and 0.025 molar fraction were synthesized using melt quenching technique. Structural changes were measured using X-ray diffraction (XRD). Optical absorption studies were performed using ultra violet visible (UV-Vis) spectrometer. Density were measured using Archimedes’ principle while molar volume was calculated. Optical properties such as optical band gap (Eopt), Urbach energy (ΔE) and refractive index have been determined from optical absorption data and were found to be dependent on the glass composition.