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arXiv · 1109.5962

Observation of a Snap-Through Instability in Graphene

Scott Scharfenberg·Nikhita Mansukhani·Cesar Chialvo·Richard L. Weaver·Nadya Mason
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Abstract

We examine the competition between adhesive and bending energies for few-layered graphene samples placed on rigid, microscale-corrugated substrates. Using atomic force microscopy, we show that the graphene undergoes a sharp "snap-through" transition as a function of layer thickness, where the material transitions between conforming to the substrate and lying flat on top of the substrate. By utilizing the critical snap-through thickness in an elasticity model for the FLG's bending, we extract a value for graphene-surface adhesion energy that is larger than expected for van der Waals forces.

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Scott Scharfenberg, Nikhita Mansukhani, Cesar Chialvo, Richard L. Weaver, Nadya Mason. 2011-09-27. Observation of a Snap-Through Instability in Graphene. https://doi.org/10.1063/1.3676059

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