Preparation of Cu2S Dendritic, Double-Comb-Like Nanostructures by Gas-Solid Reaction Method

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Abstract:

Synthesis of Cu2S dendritic nanostructures by a gas-solid reaction method has been achieved. The Cu2S dendritic nanostructure consists of a backbone and small branches aligning symmetrically and densely on the backbone like a double comb. Transmission electron microscopy has revealed that the backbone is along the c axis of monoclinic Cu2S and branches are along the b axis. Pre-oxidation of copper substrate is found to be important for high yield synthesis of the dendritic nano-structures. An oxide-assisted growth model is proposed to explain the formation of the dendritic nanostructures. Good field emission characteristics are also obtained from films of the dendritic Cu2S nanostructures.

Keywords: CU2S NANOWIRE; GAS-SOLID REACTION; GROWTH MECHANISM

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.N07

Publication date: January 1, 2008

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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