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Meso-origami: Folding multilayer graphene sheets

Appl. Phys. Lett. 95, 123121 (2009); doi:10.1063/1.3223783

Published 25 September 2009

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Steven Cranford,1,2 Dipanjan Sen,1,3 and Markus J. Buehler1,2
1Center for Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, 02139 Massachusetts, USA
2Department of Civil and Environmental Engineering, Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 1-235A and B, Cambridge, 02139 Massachusetts, USA
3Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, 02139 Massachusetts, USA
Graphene features unique electronic, thermal, and mechanical properties, and the flexibility and strong attraction between graphene layers promotes the formation of self-folded nanostructures. Here we study the self-folding of mono- and multilayer graphene sheets, utilizing a coarse-grained hierarchical multiscale model derived directly from atomistic simulation. Our model, developed by enforcing assertion of energy conservation, enables the simulation of graphene folding across a range of length scales from nanometers to micrometers. Through theoretical and simulation analysis we show that the critical self-folded length is pisqrt(C/gamma ), where C and gamma are the bending stiffness per unit length and the surface energy per unit length. ©2009 American Institute of Physics
History: Received 24 July 2009; accepted 16 August 2009; published 25 September 2009
Permalink: http://link.aip.org/link/?APPLAB/95/123121/1
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KEYWORDS and PACS

Keywords
PACS
  • 81.16.-c
    Methods of nanofabrication and processing
  • 81.05.Tp
    Fullerenes and related materials; fabrication, treatment, testing and analysis
  • 61.48.De
    Structure of carbon nanotubes, boron nanotubes and closely related graphite-like systems
  • 68.65.Ac
    Multilayers (structure and nonelectronic properties)
  • 81.07.-b
    Nanoscale materials and structures: fabrication and characterization
  • 81.40.Lm
    Deformation, plasticity, and creep
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (21)
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