Observation of a snap-through instability in graphene

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

doi:10.1063/1.3676059

Observation of a snap-through instability in graphene

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

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We examine the competition between adhesive and bending energies for few-layer graphene (FLG) samples placed on microscale-corrugated metallic 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 of 1.1 eV/nm ².

Original language	English (US)
Article number	021910
Journal	Applied Physics Letters
Volume	100
Issue number	2
DOIs	https://doi.org/10.1063/1.3676059
State	Published - Jan 9 2012

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Physics and Astronomy (miscellaneous)

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10.1063/1.3676059

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abstract = "We examine the competition between adhesive and bending energies for few-layer graphene (FLG) samples placed on microscale-corrugated metallic 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 of 1.1 eV/nm 2.",

author = "Scott Scharfenberg and Nikhita Mansukhani and Cesar Chialvo and Weaver, {Richard L.} and Nadya Mason",

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AB - We examine the competition between adhesive and bending energies for few-layer graphene (FLG) samples placed on microscale-corrugated metallic 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 of 1.1 eV/nm 2.

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Observation of a snap-through instability in graphene

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