Probe-based electrochemical fabrication of freestanding Cu nanowire array

We demonstrate the fabrication of individual Cu nanowires with a probe-based electrochemical deposition method. The electrolyte used for the electrochemical deposition was carried within a pipette probe, which eliminated the need for a plating bath and created a clean environment for the continuous fabrication of nanostructures. The fabrication of vertically aligned, solid, polycrystalline Cu nanowire arrays was realized, with the Cu nanowires having diameters down to 200nm and lengths up to 10μm.