SEYDOU, Mahamadou; MARSAUDON, Sophie; BUCHOUX, Julien; AIMÉ, Jean Pierre; BONNOT, Anne-Marie

doi:10.1103/PhysRevB.80.245421

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SEYDOU, Mahamadou
Centre de physique moléculaire optique et hertzienne [CPMOH]

MARSAUDON, Sophie
Centre de physique moléculaire optique et hertzienne [CPMOH]

BUCHOUX, Julien
Centre de physique moléculaire optique et hertzienne [CPMOH]

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Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2009-12-15, vol. 80, p. 245421

American Physical Society

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The interaction between a carbon nanotube ͑CNT͒ and a graphene sheet is investigated to describe the contact properties between a CNT atomic force microscope ͑AFM͒ tip and a graphite surface. The energy of the whole system is calculated using MM+ molecular mechanical modeling. With the numerical calculations, one explores the sliding motion of the CNT on the graphene sheet either at the CNT apex or with a given CNT length contacting the surface. The aim is to mimic the AFM CNT tip scanning a graphite surface. To do so we calculate the energy barriers, the tips have to overcome to achieve a full translation. The results show that the barrier heights markedly depend on the contact length between the CNT and the graphene but show a weak dependence, if any, on the CNT tube diameter.< Leer menos

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Molecular mechanics investigations of carbon nanotube and graphene sheet interaction

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