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Superlubricity of graphene nanoribbons on gold surfaces

Kawai, Shigeki and Benassi, Andrea and Gnecco, Enrico and Soede, Hajo and Pawlak, Remy and Feng, Xinliang and Muellen, Klaus and Passerone, Daniele and Pignedoli, Carlo A. and Ruffieux, Pascal and Fasel, Roman and Meyer, Ernst. (2016) Superlubricity of graphene nanoribbons on gold surfaces. Science, 351 (6276). pp. 957-961.

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Official URL: http://edoc.unibas.ch/52663/

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Abstract

The state of vanishing friction known as superlubricity has important applications for energy saving and increasing the lifetime of devices. Superlubricity, as detected with atomic force microscopy, appears when sliding large graphite flakes or gold nanoclusters across surfaces, for example. However, the origin of the behavior is poorly understood because of the lack of a controllable nanocontact. We demonstrated the superlubricity of graphene nanoribbons when sliding on gold with a joint experimental and computational approach. The atomically well-defined contact allows us to trace the origin of superlubricity, unraveling the role played by ribbon size and elasticity, as well as by surface reconstruction. Our results pave the way to the scale-up of superlubricity and thus to the realization of frictionless coatings.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Association for the Advancement of Science
ISSN:0036-8075
e-ISSN:1095-9203
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:18 May 2018 12:08
Deposited On:15 Feb 2017 10:42

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