Abstract
Diverse application of inorganic glasses increases their demand, with this view, a new type of magnesium-zinc-sulfophosphate glasses were prepared with varied europium ions (Eu3+) doping (0 to 2.0 mol%). Such melt-quench synthesized glasses were characterized at room temperature to determine their physical and optical properties. XRD pattern of as-quenched samples confirmed their amorphous nature. Densities of glasses were increased (from 2.540 to 2.788 g.cm−3) with increase in Eu3+ doping contents. Absorption spectra disclosed eight significant peaks allocated. Photoluminescence (PL) spectra exhibited four characteristic peaks with emission intensity of the peak at 613 nm was highest. Emission peaks were enhanced with the rise in Eu3+ content up to 1.5 mol% and quenched thereafter. Values of Judd-Ofelt (J–O) intensity parameters Ω2 and Ω4 were ranged from 14.4 × 10-20 cm2 to 10.7 × 10-20 cm2 and 1.26 × 10-20 cm2 to 5.44 × 10-20 cm2, respectively. Branching ratio for 5D0→7F2 transition was ranged from 0.687 to 0.771 for Eu3+ content changed from 0 to 2.0 mol% and was higher than other transitions. The large stimulated emission cross-section suggested the prospect of glass composition for development of photonic devices and red laser.
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