Abstract
Wurtzite ZnO nanostructures doped with up to 17at% Ni have been formed by hydrothermal oxidation of electrodeposited Zn–Ni alloy films. The wire diameter decreases with Ni content, up to about 20–50nm for the Zn0.83Ni0.17O nanowires formed in NaCl solution. A strong ultra-violet emission is seen in the photoluminescence spectra obtained at 10K and room temperature. A substantial visible emission exhibited by un-doped ZnO nanostructures formed in pure water becomes negligible by nickel doping and almost completely vanishes for the samples prepared in chloride solution, due to higher crystalline quality.
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