During the spectra of today's temperature dependence series, I wrote a little Visual Basic script in AutoCAD to draw single-wall carbon nanotubes (CNTs). The above picture, a typical result, depicts four CNTs of similar diameter (0.95. 0.83, 1.05 and 0.96 nm, respectively) of zig-zag (n,0), chiral (n,m), and armchair (n,n) classification.  The (7,5) and (7,6) tubes are two of the dominant species present in CoMoCAT CNT-material, which is grown using a special catalyst by Soutwest Nanotechnologies Inc. for large sums of money.

Hopefully such pretty pictures will aid the explaination of nanotube geometry in the introductory chapter of my forthcoming thesis.

SpectroscopyNOW – Raman Links

Resonant Raman Introduction – TJ Dines

Papers

• Characterization of carbon nanotubes suspended between
  nanostructures using micro-Raman spectroscopy [Physica E 24 (2004) 26] Summary

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