Electrochemical Fabrication of Highly Ordered Semiconductor and Metallic Nanowire Arrays

Abstract

In this article, we report the fabrication of highly ordered TiO2 nanowire arrays by anodic oxidative hydrolysis of TiCl3 within a hexagonal close-packed nanochannel alumina (NCA). The single-crystalline anatase TiO2 nanowires with diameters about 15 nm and lengths about 6 μm are obtained after annealing at 500 °C. Finally, the fabrication and characterization of highly ordered Au and Ni nanowire arrays with selectable diameters are also reported.