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Research Article | Open Access

Moiré patterns arising from bilayer graphone/graphene superlattice

Hu Li1,2( ), Raffaello Papadakis3, Tanveer Hussain4, Amir Karton4, Jiangwei Liu1( )
Key Laboratory of High Efficiency and Clean Mechanical Manufacture, School of Mechanical Engineering, Shandong University, Jinan 250061, China
School of Electrical and Electronic Engineering, University of Manchester, M13 9PL Manchester, UK
Department of Chemistry, Ångström Laboratory, Uppsala University, 75 121 Uppsala, Sweden
School of Molecular Sciences, University of Western Australia, WA6009 Perth, Australia
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Graphical Abstract

Abstract

Moiré patterns from two-dimensional (2D) graphene heterostructures assembled via van der Waals interactions have sparked considerable interests in physics with the purpose to tailor the electronic properties of graphene. Here we report for the first time the observation of moiré patterns arising from a bilayer graphone/graphene superlattice produced through direct single-sided hydrogenation of a bilayer graphene on substrate. Compared to pristine graphene, the bilayer superlattice exhibits a rippled surface and two types of moiré patterns are observed: triangular and linear moiré patterns with the periodicities of 11 nm and 8-9 nm, respectively. These moiré patterns are revealed from atomic force microscopy and further confirmed by following fast Fourier transform (FFT) analysis. Density functional theory (DFT) calculations are also performed and the optimized lattice constants of bilayer superlattice heterostructure are in line with our experimental analysis. These findings show that well-defined triangular and linear periodic potentials can be introduced into the graphene system through the single-sided hydrogenation and also open a route towards the tailoring of electronic properties of graphene by various moiré potentials.

Keywords

Moiré patternsgraphone/graphene superlatticeatomic force microscopytriangular patternlinear pattern

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Nano Research
Volume 13 Issue 4,
April 2020
Pages 1060-1064
DOI: 10.1007/s12274-020-2744-6
Cite this article:
Li H, Papadakis R, Hussain T, et al. Moiré patterns arising from bilayer graphone/graphene superlattice. Nano Research, 2020, 13(4): 1060-1064. https://doi.org/10.1007/s12274-020-2744-6
Topics:
Density functional theoryElectronic propertiesHydrogenationLattice constantsLattice theoryVan der Waals forces

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Received: 02 October 2019
Revised: 12 February 2020
Accepted: 04 March 2020
Published: 13 April 2020
© The author(s) 2020

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