Abstract
Glass system (80% B2O3 – (20 – y)% Na2CO3 – y% CdO, where y = 3, 6, 9, 12 and 15 mol%) prepared by meltquenching technique and checked by XRD technique reveals the amorphous nature of these glasses. Increases in density from 2.18 to 2.82 (g/cm3) were observed with an increase in CdO content. Ultraviolet-Visible (UV-VIS) absorption spectra of polished parallel surfaces glass samples showed a decrease in the optical band gap from 3.72 to 3.59 eV with increasing CdO content. The results suggest that CdO content in glass samples plays a role as a network modifier. In addition, a correlation between the results from density, UV-VIS and FTIR measurements indicates that change in the atomic structure is due to the formation of BO4 units.
Highlights
In recent years, the physical, electrical, optical mechanical and magnetic properties of pure and various transition and rare earth metal ions doped borate glasses are under investigation
We report the molar volume, IR spectra and UV-VIS spectra of the glass samples
The molar volume appears to decrease due to closing up of structure of glasses
Summary
The physical, electrical, optical mechanical and magnetic properties of pure and various transition and rare earth metal ions doped borate glasses are under investigation. Semiconducting glasses can be generally divided into two groups, chalcogenide glasses and oxide glasses, containing transition metal ions. Oxide glasses containing transition metals such as cadmium, copper, etc. Glasses containing high concentration of transition metal ions are electronic conductors [15,16,17]. This classifies them as a form of amorphous semiconductors. An attempt has been made for the preparation and optical characterization of sodium borate glasses with the addition of cadmium oxide. We report the molar volume, IR spectra and UV-VIS spectra of the glass samples
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