Effect of copper addition on BO4, H2O groups and optical properties of lithium lead borate glass

摘要

Lead lithium borate glass samples composition 50Li(2)B(4)O(7)-(50-x)Pb3O4-x CuO, where x = 0-35 mol were prepared by melt quenching method. The density of the prepared samples was measured and molar volume was calculated. IR spectra were measured for the prepared samples at room temperature to investigate the glass structure. The IR spectra were deconvoluted using curves of Gaussian shape at approximately the same frequencies. The deconvoluted data were used to study the effect of CuO content on all the structural borate and water groups. The optical band gap obtained directly from absorption coefficient, refractive index and extinction coefficient, also by using the Tauc model. The type of transition is determined by the simple and accurate method.