DefinePK

Abstract

Nanostructures Zinc Oxide (ZnO) are promising candidates for novel application in solar cells, sensors, emerging transistors and optoelectronic devices. ZnO nanostructures have been successfully synthesized by using the hydrothermal technique on Zn substrates at 120 °C. The effect of synthesis condition from different deposition times and pH of alkaline precursor which played a role in the crystallization process were studied by scanning electron microscopy, X-ray diffraction spectra and atomic force microscopy. The I-V characteristic of the ZnO nanostructues were characterized with solar simulator. The results demonstrate that the morphology of ZnO nanostructures are determined by the growth temperature, the overall concentration of the precursors and deposition time. The formation mechanisms of different ZnO morphologies were also investigated based on the experimental results.