Abstract
Tellurite base glass doped with Erbium ions have been synthesized by melting-quenching method. X-ray diffractogam is used to verification of the glassynature of samples. Differential scanning calorimetry determine the glass transition temperature. Density (Ï) of specimens was calculated by Archimedess principle. Other physical parameters as oxygen packing density (OPD), Erbium ion concentration (CL) in the specimen, molar volume (Vm), intermolecular distance Ri, Polaron radius Rp, erbium ion concentration and Molar index of refraction Rm, were computed. In order to study the optical characteristics of the specimens, for instance, coefficient of absorption, forbidden energy gap (Eg), refractive index, and Urbach Energy (E), UV-visible absorption characterizations of Ba-Te glasses was performed in the range of 340-1000 nm. PL characterization has performed for photoluminescence study.
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