Study of mixed modifier effect on dielectric and optical properties of zinc-phosphate based ternary and quaternary nanocomposite systems

Abstract

The influence of the incorporation of TeO2 and MoO3 content on optical and dielectric properties within the ZnO-P2O5 host glass matrix has been studied. The density values of all compositions have been estimated using well-known Archimedes principle. The temperature and frequency dependency of dielectric parameters are established. Dielectric constant, as well as the dielectric loss of the glass system, are observed to decline with increasing frequency and increase with rising temperature. The ferroelectric relaxor properties of all-glass systems are studied through modified Curie-Weiss law. A remarkable alternation has been observed in the value of dielectric permittivity for the quaternary and ternary systems, indicating the influence of the mixed modifier effect. In the spectroscopic investigation, different optical parameters like optical energy bandgap, Urbach energy, refractive index, absorbance coefficient, optical density, dissipation factor, and the VELF and SELF have been obtained and are found to be strongly influenced by the mixed modifiers.