Spontaneous Formation of a ZnO Monolayer by the Redox Reaction of Zn on Graphene Oxide

ACS Applied Materials & Interfaces
Seungwoo SonZonghoon Lee

Abstract

Graphene-based two-dimensional heterostructures are of substantial interest both for fundamental studies and their various potential applications. Particularly interesting are atomically thin semiconducting oxides on graphene, which uniquely combine a wide band gap and optical transparency. Here, we report the atomic-scale investigation of a novel self-formation of a ZnO monolayer from the Zn metal on a graphene oxide substrate. The spontaneous oxidation of the ultrathin Zn metal occurs by a reaction with oxygen supplied from the graphene oxide substrate, and graphene oxide is deoxygenated by a transfer of oxygen from O-containing functional groups to the zinc metal. The ZnO monolayer formed by this spontaneous redox reaction shows a graphene-like structure and a band gap of about 4 eV. This study demonstrates a unique and straightforward synthetic route to atomically thin two-dimensional heterostructures made from a two-dimensional metal oxide and graphene, formed by the spontaneous redox reaction of a very thin metal layer directly deposited on graphene oxide.

References

Aug 20, 2004·Nature·Ayako HashimotoSumio Iijima
Apr 12, 2006·Physical Review Letters·Colin L FreemanJohn H Harding
Dec 25, 2007·Nano Letters·Konstantin N KudinRoberto Car
Jul 26, 2008·Nature Nanotechnology·Kazu SuenagaSumio Iijima
Jun 12, 2009·Ultramicroscopy·Jucheol ParkGyeong-Su Park
Apr 22, 2011·Nanotechnology·Yong-Jin KimChunli Liu
Apr 24, 2014·Nano Letters·Saptarshi DasAndreas Roelofs
Oct 7, 2014·Nature Nanotechnology·F H L KoppensM Polini
Feb 11, 2015·ACS Applied Materials & Interfaces·Iordania ConstantinouFranky So
Mar 24, 2016·The Journal of Physical Chemistry Letters·Junseok LeeXingyi Deng
Dec 23, 2016·Nano Letters·Hyo-Ki HongZonghoon Lee

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Citations

Aug 8, 2021·Nanomaterials·Jong Chan YoonGyeong Hee Ryu

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