DefinePK

Abstract

Indium Oxide(In2O3) and Zinc Oxide (ZnO) nanoparticles were mixed carefully with gold nanoparticles which was synthesis by turkevich method with particles size ranged of (73.74 nm ).Different concentration from these chemical compounds were used to preformed nanocomposite thin films of thickness of (250-300) nm by using spray pyrolysis method. The morphlogical properties were studied for all nanocomposite thin film samples with different concentrations. SEM results showed that all characteristics of samples in the nano scale. This work has been extended to study the FTIR properties, which included the transmission spectrum for all samples, the result showed two main broad metal oxygen bands. Finally the measurements of the gas sensor showed that the sensitivity increased when the gold nanoparticles concentration increasing.