Conductivity and dielectric studies on 20CdI2–80[xAg2O–y(0.7V2O5?0.3B2O3)] super ion conducting system where 1 ? x/y ? 3

The present paper reports the conductivity and dielectric studies of the quaternary super ionic conducting system 20CdI₂–80xAg₂O–y(0.7V₂O₅?0.3B₂O₃)], to see the effect of modifier to former ion ratios. The observed frequency dependence of conductivity is found to obey Jonscher’s universal law. The dc conductivity obtained from the low frequency part of the conductivity spectrum is found to be non-linear with change in the x/y ratio. Frequency and temperature dependence of the dielectric constant can be explained by Stevel’s model for dielectric relaxation in glasses. The conductivity and dielectric studies suggest that ionic motion in the system is responsible for the conductivity and relaxation effect. The silver ion transport number (t_Ag+) in the CdI₂ doped system is obtained by emf technique.