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By D. J. Fisher

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Coulomb oscillation was also observed at room temperature. The results suggested that electrical measurements were inconclusive for distinguishing whether a nanotube was metallic or semiconducting. Electric Property Control of Carbon Nanotubes by Defects. Kobayashi: Japanese Journal of Applied Physics, 2008, 47[4-2], 3292-5 [71] Defects: Effect on Conductivity 30 Defects and Diffusion in Carbon Nanotubes The strain dependence of the electronic structure and transport properties of (6,0) carbon nanotubes was studied using first-principles calculations in conjunction with Green’s function techniques.

Hunt: Carbon, 2007, 45[14], 2744-50 [125] Defects: Formation Vertically aligned multi-walled carbon nanotube ensembles were exposed to argon and hydrogen ion bombardment in order to introduce defects into the structure. Raman spectroscopy and electrochemical analyses were then used to characterize the amount and nature of the disorder within the carbon nanotubes. While increased disorder upon ion irradiation was generally observed, argon and hydrogen had differing effects upon the Raman intensity spectra.

Tyagi: Applied Physics Letters, 2011, 98[19], 192105 [82] Defects: Effect on Electrical Properties 34 Defects and Diffusion in Carbon Nanotubes The characteristics and reactivity of two anodes based upon Pt supported on carbon nanotubes, with or without defects introduced by ball-milling, were studied using scanning electron microscopy, transmission electron microscopy, cyclic voltammetry and single-cell measurements using a flow of pure H2 or a flow containing 50ppm CO. It was shown that the presence of defects influenced several properties and not only the dispersion of Pt particles.

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