Meso-origami: Folding multilayer graphene sheets

Cranford, Steven; Sen, Dipanjan; Buehler, Markus J.
September 2009
Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p123121
Academic Journal
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 [formula], where C and γ are the bending stiffness per unit length and the surface energy per unit length.


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