The structural arrangement and the optical band gap in certain Quaternary PbO-ZnO-TeO2-B2O3 glasses
Abstract
Eight PbO-ZnO-TeO2-B2O3 glasses were prepared with a standard melting method from pure oxides. The substitution of TeO2 by B2O3 leads to an increase in the glass-transition temperature from 292 to 457 °C and to an increase in the optical band gap from 3.66 eV to 4.03 eV. The values of the non-linear refractive index were estimated at around 6 × 10-12 esu. Raman scattering spectra suggest a transformation in TeO2 and B2O3 based part of the glasses network.
- Publication:
-
Journal of Non Crystalline Solids
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.jnoncrysol.2018.03.029
- Bibcode:
- 2018JNCS..489...40T
- Keywords:
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- Boro-tellurite glass;
- Optical band gap;
- Raman spectra;
- Non-linear refractive index