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Surrounding effects in single-walled and multi-walled carbon nanotubes

Published online by Cambridge University Press:  15 March 2011

Jean-Pierre Buisson ,
Olivier Chauvet ,
Serge Lefrant ,
Christophe Stephan  and
Jean-Michel Benoit
Jean-Pierre Buisson
Affiliation:
Institut des Matériaux Jean Rouxel, Nantes University 2 rue de la Houssiniére, BP32229, Nantes, France
Olivier Chauvet
Affiliation:
Institut des Matériaux Jean Rouxel, Nantes University 2 rue de la Houssiniére, BP32229, Nantes, France
Serge Lefrant
Affiliation:
Institut des Matériaux Jean Rouxel, Nantes University 2 rue de la Houssiniére, BP32229, Nantes, France
Christophe Stephan
Affiliation:
Institut des Matériaux Jean Rouxel, Nantes University 2 rue de la Houssiniére, BP32229, Nantes, France
Jean-Michel Benoit
Affiliation:
also at Trinity College, Dublin, Ireland
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Abstract

The low frequency RBM observed in SWNTs has been proved to probe efficiently their diameter distribution. We have built a model to estimate the interactions between individual nanotubes when arranged in bundles which leads to a RBM upshift of 10 to 20 cm−1. In a PMMA-SWNTs composite, our model shows that an upshift can be also predicted as due to the stress applied by the polymer on the bundles upon breathing. Finally, the interaction between concentric layers in MWNTs can lead to low frequency modes originating from the RBM of individual tubes as observed experimentally.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 633: Symposium A – Nanotubes and Related Materials , 2000 , A14.12
Copyright
Copyright © Materials Research Society 2001

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References

[1] see for instance “Physical properties of carbon nanotubes”, ed. Saito, R., Dresselhaus, G., Dresselhaus, M., Imperial College Press, London (1998)Google Scholar
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[10] for PMMA: Young modulus E=3.3 GPa, Poisson ratio v∼0.3Google Scholar