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Surfactant-SWNT Assembly and Static Dielectrics of SWNTs

Published online by Cambridge University Press:  01 February 2011

Dan Wang ,
Wei Lu ,
Ru Zhang ,
Zi-Chen Li  and
Liwei Chen
Dan Wang
Affiliation:
dw301204@ohio.edu, Ohio University, Chemistry & Biochemistry, Athens, OH, 45701, United States
Wei Lu
Affiliation:
wl403506@ohio.edu, Ohio University, Chemistry & Biochemistry, Athens, OH, 45701, United States
Ru Zhang
Affiliation:
rz156005@ohio.edu, Ohio University, Physics & Astronomy, Athens, OH, 45701, United States
Zi-Chen Li
Affiliation:
zcli@pku.edu.cn, Peking University, Beijing, N/A, China, People's Republic of
Liwei Chen
Affiliation:
chenl1@ohio.edu, Ohio University, Dept. of Chemistry & Biochemistry, 136 Clippinger Labs, Athens, OH, 45701, United States, 740-593-2308
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Abstract

In this invited presentation, we report (1) the assembly of polymer surfactants at the single-walled carbon nanotube (SWNT) and water interface, which not only results in the dispersion of SWNTs in aqueous environments but also provides opportunities for controlled assembly of ternary complexes and the introduction of external stimuli-responsive SWNT dispersions; (2) the first experimental measurement of dc polarization of individual carbon nanotubes using modified scanning force microscopy techniques. The transverse dielectric constant of carbon nanotube is about 10, and this method could be used to distinguish metallic from semiconducting nanotubes.

Keywords

dielectric propertiesnanostructurescanning probe microscopy (SPM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1018: Symposium EE – Applications of Nanotubes and Nanowires , 2007 , 1018-EE03-05
Copyright
Copyright © Materials Research Society 2007

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References

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