Abstract:
A press-quenching method from glass melt was used to prepare two series of ternary semiconducting V2O5–10NiO–TeO2 and V2O5–20NiO–TeO2 glasses. TEP, density (𝜌) and molar volume of oxygen (Vm) of these glasses were studied. Measurement of TEP at the temperature
range 302 – 512K for the above glass samples has been made. Details on the formation of the
polarons as well as the disorder energy resulting from randomized fields were obtained.
Heikes’ equation and small polaron model theory relating to TEP managed to account sufficiently for the results from the experimental data. Results showed that as the content of V2O5
in glass increase there will be a fall in density in addition to a monotonical increase in molar
volume. All the glasses appear to be in a single-phase structure.
