Surface-enhanced Raman scattering from small numbers of purified and oxidised single-walled carbon nanotubes

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Title: Surface-enhanced Raman scattering from small numbers of purified and oxidised single-walled carbon nanotubes
Authors: Al-Alttar, Nebras
Kennedy, Eamonn
Kopf, Ilona
Giordani, Silvia
Rice, James H.
Permanent link: http://hdl.handle.net/10197/4513
Date: 11-May-2012
Abstract: Surface enhanced resonance Raman scattering (SERRS) has been applied to investigate defects in purified and carboxylated single-walled carbon nanotubes (SWCNTs). For both samples SERRS spectra with temporal fluctuating peak intensities and positions in the range of 1000 to 1350 cm-1 have been observed. A series of peaks in this window were observed to coincide with peak positions that have been assigned to arise from Stone-Thrower-Wales and heptagonal-pentagonal intramolecular junction defects on the nanotubes surface. Two possible origins for these fluctuating spectral features are discussed ie the presence of Stone-Thrower-Wales defects in SWCNTs or amorphous carbon impurities.
Type of material: Journal Article
Publisher: Elsevier
Copyright (published version): 2012 Elsevier B.V.
Keywords: Carbon nanotubes;SERs;Raman;Surface enhanced Raman;Impurities
DOI: 10.1016/j.cplett.2012.03.092
Language: en
Status of Item: Peer reviewed
Appears in Collections:Physics Research Collection

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