Article,

The Kataura plot for single wall carbon nanotubes on top of crystalline quartz

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PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 247 (11-12): 2835-2837 (2010)24th International Winterschool on Electronic Properties of Novel Materials - Molecular Nanostructures (IWEPNM 2010), Tirol, AUSTRIA, MAR 06-13, 2010.
DOI: 10.1002/pssb.201000239

Abstract

In this work, we have studied the radial breathing mode (RBM) resonance Raman spectra of single-wall carbon nanotube serpentines. Each serpentine consists of a series of straight, parallel, and regularly spaced segments, connected by alternating U-turns formed on top of crystalline miscut quartz. We compare our omega(RBM) and E(ii) values with the results in the literature and find a strong environmental effect related to the tube substrate interaction. We establish experimentally the omega(RBM) = (227/d(t)) root 1 + (0.082 +/- 0.009)d(t)(2) relation between RBM frequency (omega(RBM)) and tube diameter (d(t)), with a 100 +/- 30 meV downshift in the optical transition energies with respect to the E(ii) values measured for the standard ``supergrowth'' samples. (c) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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