The Mathematical Institute, University of Oxford, Eprints Archive

The sensitivity of Graphene ‘Snap-through’ to substrate
geometry

Wagner, T. J. W. and Vella, D. (2012) The sensitivity of Graphene ‘Snap-through’ to substrate
geometry.
Applied Physics Letters .

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Abstract

We study theoretically the deposition of Few Layer Graphene sheets onto a grooved substrate incorporating adhesion between substrate and sheet. We develop a model to understand the equilibrium of the sheet allowing for partial conformation of sheet to substrate. This model gives new insight into recent observations of ‘snap-through’ from flat to conforming states and emphasizes the crucial role of substrate shape in determining the nature of this transition. Our analytical results are consistent with numerical simulations using a van der Waals-like interaction . Finally we propose a novel substrate shape that should exhibit a continuous, rather than ‘snap-through’, transition.

Item Type:Article
Subjects:D - G > General
Research Groups:Oxford Centre for Collaborative Applied Mathematics
ID Code:1535
Deposited By:Peter Hudston
Deposited On:04 Jul 2012 09:07
Last Modified:04 Jul 2012 09:07

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