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Browse Journals & Magazines > Applied Physics Letters ...> Volume:92 Issue:24 Help

Characterization of the disaggregation state of single-walled carbon nanotube bundles by dielectrophoresis and Raman spectroscopy

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2 Author(s)
Kumatani, A. ; London Centre for Nanotechnology, London WC1H 0AH, United Kingdom and Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, United Kingdom ; Warburton, P.A.

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We have used a combination of dielectrophoretic assembly and Raman spectroscopy to characterize the disaggregation state of bundles of single-walled carbon nanotubes. The presence of semiconducting nanotubes following assembly indicates incomplete disaggregation of the nanotubes in the surfactant/solvent. We show that this combined technique is a more sensitive measure of the aggregation state of nanotubes than either optical absorption measurement or Raman spectroscopy alone.

Published in:
Applied Physics Letters  (Volume:92 ,  Issue: 24 )

Date of Publication: Jun 2008

Page(s):
243123 - 243123-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2949071
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Jun 2008

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