Influence of Fe2O3 on structural, physical and optical properties of Lithium Sodium Bismuth Borate glasses
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 9
Abstract
In this paper, the Ferric oxide doped Lithium Sodium Bismuth Borate glass samples of composition xFe2O3-25Li2O-5Na2O-15Bi2O3-(55-x)B2O3 (where x = 0,2,4,6) have been prepared by melt quenching technique. Powder X-ray diffraction pattern confirmed the amorphous nature of the prepared glasses. Density measurements have been done with standard Archimedes principle. From the value of density, molar volume and OPD have been calculated. The DSC characterization was carried out to observe glass transition temperature. The FTIR spectral investigations exhibit characteristic vibrations of BO3, BO4 units, bending vibration of B-O-B linkages and in BiO6 octahedral units Bi-O bonds exist. From the UV absorption spectra, direct optical band gap and refractive index have been calculated. The direct optical band gap values obtained lies in the range 1.06-1.87 eV. Density, molar volume, OPD, Tg, direct optical band gap energy and refractive index have shown interesting anomalous behavior.
Authors and Affiliations
Shilpa Kulkarni, V M Jali
Keywords
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