Studies of Multiwall Carbon Nanotubes Using Raman Spectroscopy and Atomic Force Microscopy

Abstract:

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Preliminary results of Raman scattering measurements of multiwall carbon nanotubes (MWCNT) are presented. The nanotubes have been carefully dissolved, separated and then characterized by AFM. The micro-Raman spectra are taken with 514,5nm wavelength excitations in the range 4K - 400K. Basically the spectra are quite similar to the well known single wall carbon nanotube spectra, but the low frequency band is absent. The major Raman bands, observed in single wall nanotubes are found in the spectra. In particular the disorder effects are visible due to the pronounced D band at ~1350 cm-1. Metallic and semiconducting type of conductivity is distinguished through analysis of the G (LO) mode at ~1600 cm-1. A new feature in these spectra exists at ~843 cm-1. Low energy radial breathing mode absence has been explained.

Info:

Periodical:

Solid State Phenomena (Volumes 99-100)

Edited by:

Witold Lojkowski and John R. Blizzard

Pages:

265-268

DOI:

10.4028/www.scientific.net/SSP.99-100.265

Citation:

M. Zdrojek et al., "Studies of Multiwall Carbon Nanotubes Using Raman Spectroscopy and Atomic Force Microscopy", Solid State Phenomena, Vols. 99-100, pp. 265-268, 2004

Online since:

July 2004

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Price:

$35.00

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