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The formation of atomic nanoclusters on graphene sheets

Neek Amal, M ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1088/0957-4484/20/13/135602
  3. Publisher: 2009
  4. Abstract:
  5. The formation of atomic nanoclusters on suspended graphene sheets has been investigated by employing a molecular dynamics simulation at finite temperature. Our systematic study is based on temperature-dependent molecular dynamics simulations of some transition and alkali atoms on suspended graphene sheets. We find that the transition atoms aggregate and make various size nanoclusters distributed randomly on graphene surfaces. We also report that most alkali atoms make one atomic layer on graphene sheets. Interestingly, the potassium atoms almost deposit regularly on the surface at low temperature. We expect from this behavior that the electrical conductivity of a suspended graphene doped by potassium atoms would be much higher than in the case doped by the other atoms at low temperature. © 2009 IOP Publishing Ltd
  6. Keywords:
  7. Alkali atoms ; Atomic layers ; Graphene sheets ; Low temperatures ; Molecular dynamics simulations ; Potassium atoms ; Systematic studies ; Temperature dependents ; Dynamics ; Electric conductivity ; Nanoclusters ; Atoms ; Alkali ; Graphene ; Nanoparticle ; Potassium ; Article ; Atom ; Electric conductivity ; Low temperature ; Molecular dynamics ; Priority journal ; Simulation ; Temperature
  8. Source: Nanotechnology ; Volume 20, Issue 13 , 2009 ; 09574484 (ISSN)
  9. URL: https://iopscience.iop.org/article/10.1088/0957-4484/20/13/135602