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Observation of the resonant Raman behavior of individual single-walled carbon nanotubes

  • tan, ph
  • tang, y
  • cy, hu
  • li, f
  • bai, s
  • cheng, hm
  • you, jq
  • chinese, ph r tan
Publication Date
Jan 01, 2001
Knowledge Repository of SEMI,CAS
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The different resonant Raman scattering process of single-walled carbon nanotubes (SWNTs) has been found between the Stokes and anti-Stokes sides of the radial breathing modes (RBMs), and this provides strong evidence that Raman spectra of some special diametric SWNTs are in resonance with their electronic transitions between the singularities in the one-dimensional electronic density of states in the valence and conduction bands, and other SWNTs axe beyond the resonant condition. Because of the coexistence of resonant and non-resonant Raman scattering processes for different diametric SWNTs, the relative intensity of each RBM does not reflect the proportion of a particular SWNT.

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