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Open Access Evolutional Transformation of Copper Oxide Nanowires to Copper Nanowires by a Reduction Technique

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We report here a simple method to produce copper nanowires on a substrate as an alternative to template approaches and chemical synthesis routes. First, copper oxide nanowires are grown from conventional bulk copper wires by thermal oxidation. The resulting nanowires, which are a mixture of CuO and Cu2O, are normal to the substrate. Next, these oxide nanowires are reduced to copper nanowires in the same furnace under a hydrogen flow at 400 °C. The evolution of oxide nanowires and their transformation to copper nanowires is studied as a function of time. Electrical characterization reveals a reduction of resistance by six orders of magnitude at the completion of the reduction process.

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Keywords: COPPER NANOWIRE; COPPER OXIDE NANOWIRE; INTERCONNECT; OXIDATION; REDUCTION

Document Type: Research Article

Publication date: June 1, 2011

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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