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Mechanics of multi walled Carbon nanotubes probed by AFM

Published online by Cambridge University Press:  21 March 2011

S. Decossas ,
L. Patrone ,
F. Comin  and
J. Chevrier
S. Decossas
Affiliation:
ESRF, BP 220, F38043 Grenoble Cedex FRANCE
L. Patrone
Affiliation:
SCM, CEA/Saclay, 91191 Gif-sur-Yvette cedex, FRANCE
F. Comin
Affiliation:
ESRF, BP 220, F38043 Grenoble Cedex FRANCE
J. Chevrier
Affiliation:
ESRF, BP 220, F38043 Grenoble Cedex FRANCE LEPES-CNRS, BP 166, 38042 Grenoble Cedex 9, FRANCE Université Joseph Fourier (UJF), Grenoble, FRANCE
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Abstract

Using the AFM tip, nanotubes are caught on a raw sample then deposited on a clean surface with an absolute precision better than 500nm. A nanostructured surface made of smooth Germanium dots on flat silicon was used as deposition sample. Nanotube mechanics is probed by AFM tip induced displacement. Nanotubes are shown to be blocked by Ge dots: it is impossible to induce a controlled displacement of the nanotube over a Ge dot when it is pushed against the dot. Elastic energy due to the bending of the nanotube is at the root of that behavior.

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References

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