Sensing studies of copper oxide-zinc oxide heterojunctions to volatile organic compounds

Abstract

Detection and differentiation of volatile organic compounds (VOCs) is extremely important since presence of these gaseous pollutants in ambient air is harmful and poses a serious threat to human health even at small concentrations. In this paper, a simple and cost-effective method for synthesis of a nanostructured multilayer film of (CuO/Cu2O)/ZnO:Fe is presented, which allows to form non-planar heterojunctions for efficient vapor detection of volatile organic compounds.