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Scarselli, M., Camilli, L., Persichetti, L., Castrucci, P., Lefrant, S., Gautron, E. & De Crescenzi, M. (2012) Strain analysis of noble metal islands grown on multiwalled carbon nanotubes. Carbon, 50 3616–3621.
Added by: Laurent Cournède (2016-03-10 21:28:38) |
| Type de référence: Article DOI: 10.1016/j.carbon.2012.03.032 Numéro d'identification (ISBN etc.): 0008-6223 Clé BibTeX: Scarselli2012 Voir tous les détails bibliographiques  |
Catégories: PMN Créateurs: Camilli, Castrucci, De Crescenzi, Gautron, Lefrant, Persichetti, Scarselli Collection: Carbon |
Consultations : 1/506
Indice de consultation : 3% Indice de popularité : 0.75% |
| Résumé |
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We analyze the local microscopic deformation left by Au, Ag and Cu islands on carbon nanotube walls observed by transmission electron microscopy. We employ finite-element simulations within continuum elasticity theory to demonstrate that the observed deformation of the tube walls is the result of elastic strain energy relaxation induced by the nucleation of noble metal clusters on the graphene lattice. We find that the magnitude of the tube deformation is strictly correlated to the lattice mismatch of the metal/carbon system under study. In this context, the tube deformation under the island is a proof of the pseudomorphical character of the system, even in the case of high lattice misfit (similar to 15\%) as for Au and Ag. (C) 2012 Elsevier Ltd. All rights reserved.
Added by: Laurent Cournède |