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

A. Kumatani; P. A. Warburton

doi:10.1063/1.2949071

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

A. Kumatani, P. A. Warburton

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

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.

Original language	English
Article number	243123
Journal	Applied Physics Letters
Volume	92
Issue number	24
DOIs	https://doi.org/10.1063/1.2949071
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2949071

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abstract = "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.",

author = "A. Kumatani and Warburton, {P. A.}",

note = "Funding Information: This work is supported by the UK-EPSRC through the IRC in Nanotechnology. The authors would like to thank Dr. S. Firth and Dr. C. A. Howard for helpful discussions. ",

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AU - Kumatani, A.

AU - Warburton, P. A.

N1 - Funding Information: This work is supported by the UK-EPSRC through the IRC in Nanotechnology. The authors would like to thank Dr. S. Firth and Dr. C. A. Howard for helpful discussions.

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

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

Abstract

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