Electrochemical Fabrication of ZnO Nanowires in Anodized Aluminum Template Using Cyclic Voltammetry

This thesis work studies in detail the fabrication ZnO in Anodic Aluminum Template using Cyclic Voltammetry which is one of the electrochemical deposition methods. In this current work the Aluminum is anodized in Oxalic and Sulphuric acids for different timings with constant current density of 10mA/cm 2. The hexagonal pores were observed after the anodization process. The pores are filled with Zinc using the Cyclic Voltammetry Method of Electrochemical deposition. The samples are then oxidized at 300°C to form the Zinc oxide nanowires. The presence of Zinc is tested using various techniques like Atomic Force Microscopy and Scanning Electron Microscopy which shows the presence of Zinc in the pores. To analytically prove the presence of Zinc Optical Spectroscopy is used. The absorption and reflection spectrums are studied to determine the presence of Zinc Oxide. The Zinc Oxide film was found to have strong absorbance at 0.50 at 340 nm. The thickness of the oxide layer is determined as 354.3 nm. The band gap of the Zinc oxide was found to be at 3.23eV.