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Interactions in Carbon Nanotubes and Polymer/Nanotubes Composites as Evidenced by Raman Spectroscopy (Invited)

Published online by Cambridge University Press:  15 March 2011

Serge Lefrant ,
Jean-Pierre Buisson ,
Olivier Chauvet ,
Jean-Michel Benoit ,
M. Baibarac ,
I. Baltog  and
P. Bernier
Serge Lefrant
Affiliation:
Institut des Matériaux, CNRS/University of Nantes, France
Jean-Pierre Buisson
Affiliation:
Institut des Matériaux, CNRS/University of Nantes, France
Olivier Chauvet
Affiliation:
Institut des Matériaux, CNRS/University of Nantes, France
Jean-Michel Benoit
Affiliation:
Institut des Matériaux, CNRS/University of Nantes, France
M. Baibarac
Affiliation:
National Institute of Materials, Bucharest, Romania
I. Baltog
Affiliation:
National Institute of Materials, Bucharest, Romania
P. Bernier
Affiliation:
GDPC, University of Montpellier II, France
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Abstract

Carbon nanotubes systems have revealed large potentialities in terms of applications, especially at a nanometric scale. As a consequence, the different interactions which can take place can be of primary importance. In this paper, we report studies carried out on different carbon systems such as single-walled or multi-walled nanotubes and polymer/nanotubes composites. By using Raman spectroscopy, apart from the expected interactions between tubes in bundles which have initiated experiments on individual entities, we put in evidence strong chemical reactions at the interface metal/nanotubes when Ag or Au surfaces are used to carry out Surface Enhanced Raman Scattering experiments. We show in particular that a different behavior is observed for metallic and semiconducting tubes. Also, a high state of disorder is observed, together with the transformation of nanotubes to other carbon compounds. In the case of multi-walled nanotubes, theoretical calculations allow us to interpret the low frequency Raman modes by introducing interactions in concentric tubes, in rather good agreement with experiments. Finally, in polymer/nanotubes composites, an upshift of the radial breathing mode is observed and we show in this case that it originates from the dynamical stress applied by the polymer on the bundles in response to the breathing vibration.

Type
Article
Information
MRS Online Proceedings Library (OPL) , Volume 706: Symposium Z – Making Functional Materials with Nanotubes , 2001 , Z7.2.1
Copyright
Copyright © Materials Research Society 2002

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References

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