Transforming Moiré blisters into geometric graphene nano-bubbles.

Nature Communications
Jiong LuKian Ping Loh

Abstract

Strain engineering has been proposed as an alternative method for manipulating the electronic properties of graphene. However, the bottleneck for strain engineering in graphene has been the ability to control such strain patterns at the nanoscale. Here we show that high level of control can be accomplished by chemically modifying the adherence of graphene on metal. Using scanning tunnelling microscopy, the shape evolution of graphene Moiré blisters towards geometrically well-defined graphene bubbles was studied during the controlled, sub-layer oxidation of the ruthenium substrate. Understanding the dynamics of the oxidation process and defects generation on the Ru substrate allows us to control the size, shape and the density of the bubbles and its associated pseudo-magnetism. We also show that a modification of the same procedure can be used to create antidots in graphene by catalytic reaction of the same nanobubbles.

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Citations

May 11, 2013·Nano Letters·Zenan QiA H Castro Neto
Oct 26, 2013·Nature Communications·Jiong LuKian Ping Loh
Dec 15, 2015·ACS Applied Materials & Interfaces·Andrey BabichevVladimir Y Butko
Feb 5, 2014·Nano Letters·Hiroki ShioyaSeigo Tarucha
Aug 5, 2015·Nano Letters·Giovanni ZamborliniAndrea Locatelli
Jul 15, 2015·Nano Letters·Merijntje S BronsgeestPascal Pochet
Feb 18, 2017·Nano Letters·Alexander GeorgiMarkus Morgenstern
Jun 11, 2016·Scientific Reports·Nitin MuralidharanCary L Pint
Feb 9, 2016·Scientific Reports·Koen SchoutedenKyungwha Park
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Dec 12, 2013·Advanced Materials·Guang-Xin NiBarbaros Ozyilmaz
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Mar 7, 2013·Nature Communications·Candy Haley Yi Xuan LimKian Ping Loh
Jan 26, 2017·Scientific Reports·Rongshan Qin
Jun 30, 2018·Nanotechnology·S YooJ-S Kim
Aug 14, 2012·Small·Jiong LuKian Ping Loh
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