Physical and optical analysis of Sm3+ doped zinc phosphate glass

Abstract

Sm3+ (0.1, 0.2, 0.3, 0.4 & 0.5 wt%) doped zinc phosphate glasses have been prepared by melt quenching technique. Their physical, as well as optical properties, have been studied. The UV–Vis absorption spectroscopy was carried on in the wavelength range of 400–700 nm which reveals five absorption bands at 406 nm, 445 nm, 478 nm, 533 nm, and 572 nm respectively. The direct bandgap is found to be 2.42–2.47 eV while the indirect bandgap is 2.30–2.34 eV. Urbach energy is calculated to be 0.4237–0.4445 eV. The other parameters like dielectric susceptibility, metallization, refractive index, oxygen packing density, etc., have also been studied.