Physical and optical properties of magnesium sulfoborate glasses doped Dy3+ ions

Abstract

The optical properties of alkaline earth borate glasses doped with rare earth are attractive field of research due to many optical applications. We have concentrated on the physical and optical properties of MgO-SO 4 -B 2 O 3 glass with different concentrations of Dy 3+ ions. The samples of glass were prepared using the melting quenching technique. The physical parameter and optical properties of the prepared glass were determined. It was observed that the density of the glass samples increased and the molar volume reduced with respect to Dy 3+ ions content. Dy 3+ : MgO-SO 4 -B 2 O 3 glass displayed 10 absorption bands with hypersensitive transition around 1265 nm ( 6 H 15/6 → 6 F 11/2 ). Two intense luminescence emissions were observed at 482 nm ( 4 F 9/2 → 6 H 15/2 : blue) and 573 nm ( 4 F 9/2 → 6 H 13/2 : yellow) and weak band at 662 nm ( 4 F 9/2 → 6 H 11/2 : red) with excitation wavelength 380 nm. A strong enhancement in the emission peaks at 573 nm in the yellow region was observed with the 0.07 mol% concentration of dysprosium oxide, which may assign to the energy transfer from Mg 2+ to Mg 3+ ions. Beyond the optimum concentration, contrary result was observed.

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

“…Recently, passionate efforts have been focused on the synthesis and characterization of multi-component oxide glasses such as borophosphate (Marimuthu, 2016), sulfoborate (Dalhatu et al, 2016), borosulfophosphate (Kumar et al, 2012), borotellurite (Lakshminarayana et al, 2017) and borosilicate (Rao et al, 2014) glasses for various scientific and technological applications. Among the convectional multi-component glass families, borophospho-tellurite glass host has been chosen in this study because combination of B2O3, P2O5 and Te2O3 will enhance not only the physical and electrical properties but also the UV and IR transmission abilities (Maheshvaran andMarimuthu, 2012, Gomes et al, 2017).…”