Preparation, characterization and dielectric properties of GO based ZnO embedded mixed metal oxides ternary nanostructured composites

The present work aims to highlight the enhanced dielectric permittivity and electronic properties of GO-based ZnO, CuO and Ag2O mixed ternary nanostructured composite developed by simple sol-gel based hetero-selection synthesis approach. The significant dielectric properties is observed for GO/ZnO@Ag2O nanostructured composite with the dielectric constant epsilon' between 5 x 10(2) up to 3.1 x 10(4) with the minimal dielectric loss epsilon '' of <= 4 at all ranges of given frequency and temperature. At the lower and higher frequency of 1 kHz and 2 MHz, sigma(ac) conductivities value is found to 2.25 x 10(-4) S/m and 2.5 x 10(-2) S/m at 200 degrees C respectively. This value is found to be dependent on frequency and increases linearly with the increase in frequency. The other physio-chemical characterization techniques are done to study the properties of nanostructured composite via TEM, FESEM, FTIR, XRD, Zeta and BET. The present work involves the remarkable dielectric and charge storage uses. (C) 2021 Elsevier B.V. All rights reserved.