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The Use of Terahertz Spectroscopy as a Sensitive Probe in Discriminating the Electronic Properties of Structurally Similar Multi-Walled Carbon Nanotubes

Parrott, Edward P. J.
Zeitler, J. Axel
McGregor, James
Oei, Shu-Pei
Ünalan, Hüsnü Emrah
Milne, William I.
Tessonnier, Jean-Philippe
Su, Dong Sheng
Schloegl, Robert
Gladden, Lynn F.
Terahertz: spectroscopy is used to definitively distinguish between two multi-walled carbon nanotubes (see figure), which have commercial applications in a number of advanced materials. Other techniques do not provide a sensitive discrimination of the measured properties. This observation is rationalized by considering the dielectric nature of the materials and the relationship of this to their structural differences.