Synthesis and Characterization of Cadmium Containing Sodium Borate Glasses

Vandana Sharma, Supreet Pal Singh, Gurmel Singh Mudahar, Kulwant Singh Thind

Department of Physics, Guru Nanak Dev University, Amritsar, India.
Department of Physics, Punjabi University, Patiala, India.

DOI: 10.4236/njgc.2012.24022                

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.

Keywords

Sodium Borate Glasses; Optical Band Gap; Molar Volume; UV-VIS and FTIR Spectroscopy and Bandgap Energy

Conflicts of Interest

The authors declare no conflicts of interest.

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