| Abstract
| - A convenient method for the direct and large-area growth of one-dimensional (1-D) ZnO nanostructures ona conductive brass substrate has been developed, consisting of thermal oxidation of a Cu0.66Zn0.34 alloy foilin the presence of oxygen. Various 1-D nanostructures such as nanowires, nanobelts, nanocombs, and nanosheetshave been in situ grown on the brass substrate under different reaction temperatures and characterized bymeans of X-ray diffraction, electron microscopy, and X-ray photoelectron spectroscopy. In this preparation,the Cu0.66Zn0.34 alloy foil functions as both Zn source and substrate for the growth of 1-D ZnO nanostructures;thus, the synthesis and assembly of ZnO nanostructures on a metallic substrate is accomplished in one step,and the naturally good adhesion or electrical connection between the ZnO nanostructures and the conductivesubstrate has been realized. This approach could prepare ZnO nanostructures on a brass substrate withoutsize limitations. Such a configuration of product is a good field emitter as demonstrated in this study. Thepotential technological importance of the product, the simplicity of the preparation procedure, as well as thecheap commercial precursor of the Cu0.66Zn0.34 alloy foil makes this study both scientifically and technologicallyinteresting.
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