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Adsorbate-induced curvature and stiffening of graphene
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Svatek, Simon A., Scott, Oliver R., Rivett, Jasmine P. H., Wright, Katherine, Baldoni, Matteo, Bichoutskaia, Elena, Taniguchi, Takashi, Watanabe, Kenji, Marsden, Alexander J., Wilson, Neil R. and Beton, Peter H. (2014) Adsorbate-induced curvature and stiffening of graphene. Nano Letters, Volume 15 (Number 1). pp. 159-164. doi:10.1021/nl503308c ISSN 1530-6984.
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Official URL: http://dx.doi.org/10.1021/nl503308c
Abstract
The adsorption of the alkane tetratetracontane (TTC, C44H90) on graphene induces the formation of a curved surface stabilized by a gain in adsorption energy. This effect arises from a curvature-dependent variation of a moiré pattern due to the mismatch of the carbon–carbon separation in the adsorbed molecule and the period of graphene. The effect is observed when graphene is transferred onto a deformable substrate, which in our case is the interface between water layers adsorbed on mica and an organic solvent, but is not observed on more rigid substrates such as boron nitride. Our results show that molecular adsorption can be influenced by substrate curvature, provide an example of two-dimensional molecular self-assembly on a soft, responsive interface, and demonstrate that the mechanical properties of graphene may be modified by molecular adsorption, which is of relevance to nanomechanical systems, electronics, and membrane technology.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Graphene | ||||
Journal or Publication Title: | Nano Letters | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 1530-6984 | ||||
Official Date: | 3 November 2014 | ||||
Dates: |
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Volume: | Volume 15 | ||||
Number: | Number 1 | ||||
Page Range: | pp. 159-164 | ||||
DOI: | 10.1021/nl503308c | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Date of first compliant deposit: | 29 December 2015 | ||||
Date of first compliant Open Access: | 29 December 2015 | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), European Research Council (ERC) | ||||
Grant number: | EP/K01773X/1 (EPSRC) |
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