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Electrical Conductance in a Single Carbon Nanofiber

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A microwave-plasma enhanced chemical-vapor-deposition (MPECVD) method was used to grow a solo multi-wall carbon nanofiber, which plays as a bridge across nickel electrodes that were separated by the photolithographic process. The length and diameter of carbon nanofiber are 3 m and 100 nm, respectively. The single wire across the electrodes reveals a step current-voltage characteristic measured at high currents and low temperatures while shows a continuous behavior for multiple nanofibers. This stepwise conductance can be successfully dwelled by the quasi one-dimensional transport theory of conductors without considering the electron-phonon interaction at low temperatures and is expected to play a crucial role to determine the electrical behavior of these nanodevices.
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Keywords: ELECTRICAL CONDUCTION; MICROWAVE ENHANCED CVD; SINGLE CARBON NANOFIBER

Document Type: Research Article

Publication date: 2005-10-01

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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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