Influence of ZnO on optical properties and dc conductivity of vanadyl-doped alkali bismuthate glasses

Abstract

A new family of glasses based on Bi2O3 was found in the systems xZnO · (0.30 − x)M2O · 0.70Bi2O3 (M = Li, Na) in the range 0.00 ≤ x ≤ 0.20 containing 2.0 mol% of V2O5. Density, molar volume, optical band gap and dc conductivity of these glasses have been investigated. The position of the absorption edge and hence the value of the optical band gap has been reported.