Registry-Dependent Peeling of Layered Material Interfaces: The Case of Graphene Nanoribbons on Hexagonal Boron Nitride

Wengen Ouyang, Oded Hod*, Michael Urbakh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Peeling of layered materials from supporting substrates, which is central for exfoliation and transfer processes, is found to be dominated by lattice commensurability effects in both low and high velocity limits. For a graphene nanoribbon atop a hexagonal boron nitride surface, the microscopic peeling behavior ranges from stick-slip, through smooth-sliding, to pure peeling regimes, depending on the relative orientation of the contacting surfaces and the peeling angle. The underlying mechanisms stem from the intimate relation between interfacial registry, interlayer interactions, and friction. This, in turn, allows for devising simple models for extracting the interfacial adhesion energy from the peeling force traces.

Original languageEnglish
Pages (from-to)43533-43539
Number of pages7
JournalACS Applied Materials and Interfaces
Volume13
Issue number36
DOIs
StatePublished - 15 Sep 2021

Funding

FundersFunder number
ISF-NSFC1586/17, 3191/19
Naomi Foundation
Naomi Foundation
National Natural Science Foundation of China11890674, 12102307, 11890673
Israel Science Foundation1141/18
Tel Aviv University
Wuhan University

    Keywords

    • graphene nanoribbon
    • h-BN
    • interfacial friction
    • misfit angle
    • peeling
    • registry-dependent interlayer potential

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