A Graphene Surface Force Balance
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Tartalom: http://dx.doi.org/10.1021/la5028493
Archívum: REAL
Gyűjtemény: Status = Published
Subject = Q Science / természettudomány: QC Physics / fizika: QC06 Physics of condensed matter / szilárdtestfizika
Type = Article
Cím:
A Graphene Surface Force Balance
Létrehozó:
Britton, Jude
Cousens, Nico E. A.
Coles, Samuel W.
van Engers, Christian D.
Babenko, Vitaliy
Murdock, Adrian T.
Koós, Antal Adolf
Perkin, Susan
Grobert, Nicole
Dátum:
2014
Téma:
QC06 Physics of condensed matter / szilárdtestfizika
Tartalmi leírás:
We report a method for transferring graphene, grown by chemical vapor deposition, which produces ultraflat graphene surfaces (root-mean-square roughness of 0.19 nm) free from polymer residues over macroscopic areas (>1 cm2). The critical step in preparing such surfaces involves the use of an intermediate mica template, which itself is atomically smooth. We demonstrate the compatibility of these model surfaces with the surface force balance, opening up the possibility of measuring normal and lateral forces, including friction and adhesion, between two graphene sheets either in contact or across a liquid medium. The conductivity of the graphene surfaces allows forces to be measured while controlling the surface potential. This new apparatus, the graphene surface force balance, is expected to be of importance to the future understanding of graphene in applications from lubrication to electrochemical energy storage systems.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Britton, Jude and Cousens, Nico E. A. and Coles, Samuel W. and van Engers, Christian D. and Babenko, Vitaliy and Murdock, Adrian T. and Koós, Antal Adolf and Perkin, Susan and Grobert, Nicole (2014) A Graphene Surface Force Balance. LANGMUIR, 30 (38). pp. 11485-11492. ISSN 0743-7463
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