Abstract
Nd3+ ions in B2O3+SiO2+TeO2+Na2O glasses were prepared using melt-quenching method. The host dependent structural and optical characteristics of the prepared glasses were investigated systematically via XRD, RAMAN, FTIR, DSC, UV–Visible and PL spectroscopic techniques respectively. The XRD analysis shows the amorphous nature of the prepared glasses. Using the RAMAN and FTIR, the systematic peak shift, FWHM, bond length and four co-ordinated fractions were analysized. Further, the glass transition temperature and bond dissociation energy was also estimated to comprehend the thermal disparity in the formed glasses. The indirect band gap and Urbach energy values were estimated from optical studies. Further, JO theoretical studies were carried to support the experimental results. Furthermore, with the excitation of 808 nm, the prepared glasses exhibits the high luminescence intense peak at 1058 nm. Among all the glass sample, BS10TNNd0.5 sample as highest intensity of emission and life time. The effect of non radiative decay rate and OH band on the quantum efficiency was also presented.
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•Structural, optical and luminescence properties of Nd3+ ions in B2O3+SiO2+TeO2+Na2O glasses.•The results of structural analysis show that tellurium is operating as a modulator.•After tellurium is added, the JO parameters follow the pattern (Ω2>Ω4>Ω6).•For 10 mol% tellurium, the figure of merit, gain bandwidth, and life time are all maximal.•Effect of non-radiative decay rate on life time and efficiency can be noticed in present work.