Abstract
Surface-enhanced Raman scattering spectra of an individual multiwalled carbon nanotube (MWNT) with the innermost diameter ∼1nm, prepared by hydrogen arc discharge, show a single peak of radial breathing mode and multiple splitting of the tangential stretching G-band modes. Based on Lorentzian line shape analysis and related theoretical calculations, the G-band modes of MWNT are confirmed to be composed of both G-band modes (linewidth 4cm-1) from the innermost tube and graphite-like mode (linewidth ∼20cm -1) from the outer cylinders in MWNT. This observation indicates that MWNTs are unique and possess characteristic Raman spectra different from other sp2 carbon allotropes.
Original language | English |
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Pages (from-to) | 2550-2552 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 81 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2002 Sep 30 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)