A cohesive law for interfaces in graphene/hexagonal boron nitride heterostructure

Chenxi Zhang, Jun Lou, Jizhou Song

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Graphene/hexagonal boron nitride (h-BN) heterostructure has showed great potential to improve the performance of graphene device. We have established the cohesive law for interfaces between graphene and monolayer or multi-layer h-BN based on the van der Waals force. The cohesive energy and cohesive strength are given in terms of area density of atoms on corresponding layers, number of layers, and parameters in the van der Waals force. It is found that the cohesive law in the graphene/multi-layer h-BN is dominated by the three h-BN layers which are closest to the graphene. The approximate solution is also obtained to simplify the expression of cohesive law. These results are very useful to study the deformation of graphene/h-BN heterostructure, which may have significant impacts on the performance and reliability of the graphene devices especially in the areas of emerging applications such as stretchable electronics.

Original languageEnglish (US)
Article number144308
JournalJournal of Applied Physics
Volume115
Issue number14
DOIs
StatePublished - Apr 14 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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