Narrow diameter double-wall carbon nanotubes: synthesis, electron microscopy and inelastic light scattering

Abstract : Double-wall carbon nanotubes are themolecular analogues to coaxial cables. Narrow diameter double-walled carbon nanotubes (DWNTs) have been obtained by catalytic chemical vapour deposition process with high yield and characterized by scanning and transmission electron microscopy. We examine the inelastic light scattering spectrum of mostly DWNTs with internal tubes of subnanometre diameter. We observe particularly narrow radial breathing modes corresponding to the internal tubes of diameter less than 0.7 nm of double-walled tubes. The D band is found to be strongly helicity dependent and the tangential modes in narrow diameter DWNTs are found to be often down-shifted.
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New Journal of Physics, Institute of Physics: Open Access Journals, 2003, vol. 5, pp. 131.1-131.9. 〈10.1088/1367-2630/5/1/131〉
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Revathi Bacsa, Emmanuel Flahaut, Christophe Laurent, Alain Peigney, Shaul Aloni, et al.. Narrow diameter double-wall carbon nanotubes: synthesis, electron microscopy and inelastic light scattering. New Journal of Physics, Institute of Physics: Open Access Journals, 2003, vol. 5, pp. 131.1-131.9. 〈10.1088/1367-2630/5/1/131〉. 〈hal-00955453〉

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