Optical, physical and structural study of cadmium sodium bismuth borate glasses system

The classic melt-quench method was used to make unique transparent cadmium sodium bismuth borate glasses with a composition of [Formula: see text] (18[Formula: see text] Na 2 [Formula: see text]Bi 2 O[Formula: see text]B 2 O 3 ; for ([Formula: see text], 6, 8, 10, 12). Different analytical equipment such as XRD, UV-Vis-NIR, Raman, DSC, and FTIR were employed to characterize and analyze the manufactured glass samples. The density and oxygen packing density of produced glass samples increased linearly with CdO addition, whereas the molar volume decreased. The X-ray diffraction method was employed to anticipate the amorphous nature of the prepared glass samples. The structural alterations of the generated glasses were investigated using FTIR and RAMAN spectra. DSC was employed to assess the thermal characteristics related to the crystallization temperature ([Formula: see text] and glass transition temperature ([Formula: see text]. DSC demonstrates the result that CdO content contributes most to enhancing the thermal stability of glasses. The ([Formula: see text] values increased while ([Formula: see text] values decreased as CdO substitution increased. Infrared and Raman spectroscopy were used to conduct a thorough examination of structure, which revealed that these glasses were comprised of both symmetric and asymmetric stretched vibrations of bonds. The absorption spectra in the ultraviolet-visible range of the samples indicated a reduction in the optical bandgap as CdO content increased. All the findings indicate that the CdO level in glass samples acts as a network modulator, while BO 4 does not.