Edinburgh Research Explorer

Determination of the Bending Rigidity of Graphene via Electrostatic Actuation of Buckled Membranes

Research output: Contribution to journalArticle

Related Edinburgh Organisations

Open Access permissions

Open

Documents

  • Download as Adobe PDF

    Rights statement: Copyright © 2012 by the American Chemical Society. All rights reserved.

    Accepted author manuscript, 1 MB, PDF document

http://pubs.acs.org/doi/full/10.1021/nl301080v
Original languageEnglish
Pages (from-to)3526-3531
Number of pages6
JournalNano Letters
Volume12
Issue number7
Early online date18 Jun 2012
DOIs
Publication statusPublished - 11 Jul 2012

Abstract

Classical continuum mechanics is used extensively to predict the properties of nanoscale materials such as graphene. The bending rigidity, κ, is an important parameter that is used, for example, to predict the performance of graphene
nanoelectromechanical devices and also ripple formation. Despite its importance, there is a large spread in the theoretical predictions of κ for few-layer graphene. We have used the snap-through behavior of convex buckled graphene membranes under the application of electrostatic pressure to determine experimentally values of κ for double-layer graphene membranes. We demonstrate how to prepare convex-buckled suspended graphene ribbons and fully clamped suspended membranes and show how the determination of the curvature of the membranes and the critical snap-through voltage, using AFM, allows us to extract κ. The bending rigidity of bilayer graphene membranes under ambient conditions was determined to be 35.5±15.0 eV. Monolayers are shown to have significantly lower κ than bilayers.

    Research areas

  • few-layer graphene, bending rigidity, buckled membranes

Download statistics

No data available

ID: 4195613