摘要：Zinc oxide forms nanostructures with optical and transport properties that render them useful for a variety of industrial applications. In this study, ZnO nanostructures were elaborated in the presence of PEG-400 by thermal decomposition of zinc hydroxide formed after precipitation of zinc acetate from aqueous solution. FTIR transmission spectra, scanning electron microscopy (SEM), UV-Visible spectrophotometry, and X-ray diffractometry (XRD) were used to characterize ZnO nanostructures. Inorganic diodes consisting of ZnO layers between indium-thin oxide (ITO) and Al contacts were elaborated. Current-voltage characteristics and the AC electrical response of the consolidated nanoparticles of ZnO were studied using impedance spectroscopy. The equivalent circuit parameters were determined by computer simulation. The grain, grain boundary and electrode interface contributions to the conductivity are discussed.
