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

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

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003njph....5..131b&link_type=abstract

New Journal of Physics, Volume 5, Issue 1, pp. 131 (2003).

Physics

11

Scientific paper

Double-wall carbon nanotubes are the molecular 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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