Effect of SrO and TeO2 on the physical and spectral properties of strontium tellurite boro-titanate glasses doped with Cu2+ ions

A new glass series of strontium tellurite boro-titanate glasses doped with Cu2+ ions were prepared with the composition (30-x)SrO-xTeO2-10TiO2-59B2O3-1CuO [STTBC] (where x = 5,4,3,2&1 mol%) using the melt quenching technique. The effect of varying the mol% of SrO and TeO2 on the physical and spectroscopic properties were investigated. XRD, SEM, EDS, UV-VIS, EPR and FTIR analysis were carried out to observe changes in the STTBC glass structure. From the optical absorption data the cut-off wave length, the optical band gap, Urbach energy values, etc., were calculated. The electron paramagnetic resonance (EPR) spectra (experimental & theoretical) of these glasses were extensively studied by deriving the spin-Hamiltonian parameters, bonding coefficients, paramagnetic susceptibility and crystal-field parameters etc. The higher order perturbation approach is employed to study the interaction between the ligand and the central Cu2+ ion.

Automated summary

This study investigated the preparation and influencing factors of strontium tellurite boro-titanate glasses doped with Cu2+, and studied the glass structure and optical properties through various analysis methods.