| Issue |
EPL
Volume 85, Number 4, February 2009
|
|
|---|---|---|
| Article Number | 46002 | |
| Number of page(s) | 4 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/85/46002 | |
| Published online | 10 March 2009 | |
Rippling of graphene
Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin - Austin, TX, USA
Corresponding author: marder@mail.utexas.edu
Received:
4
November
2008
Accepted:
9
February
2009
We show that ripples observed in free-standing graphene sheets can be explained as a consequence of adsorbed OH molecules sitting on random sites. The adsorbates cause the bonds between carbon atoms to lengthen slightly. Static buckles then result from a mechanism like the one that leads to buckling of leaves. Buckles caused by roughly 20% coverage of adsorbates are consistent with experimental observations.
PACS: 62.20.mq – Buckling / 63.22.Dc – Free films / 68.35.Ct – Interface structure and roughness
© EPLA, 2009
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