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Issue 9, 2013
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Graphene layers on Cu and Ni (111) surfaces in layer controlled graphene growth

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Abstract

The properties of graphene strongly depend on its thickness. It is important to understand the graphene–metal interaction to control its thickness during its growth on metal surfaces. Here, we used the DFT-D2 method of Grimme, which includes the critical long-range van der Waals forces in the graphene–metal interaction, to study the interfaces between mono-, bi-, and trilayer graphene and Cu and Ni (111) surfaces. Our results show the adsorption energy increases with the increase of graphene layers on Ni (111); in contrast, it decreases on Cu (111). Charge density and partial density of states analyses show that monolayer graphene adsorbed on Ni (111) is more reactive than that on Cu (111). Another graphene layer can be easily formed on top of monolayer or bilayer graphene adsorbed on Ni (111); but not on Cu (111). These findings provide a useful guide for achieving precise layer controlled graphene growth and designing graphene based devices.

Graphical abstract: Graphene layers on Cu and Ni (111) surfaces in layer controlled graphene growth

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Publication details

The article was received on 29 Nov 2012, accepted on 20 Dec 2012 and first published on 20 Dec 2012


Article type: Paper
DOI: 10.1039/C2RA23105K
Citation: RSC Adv., 2013,3, 3046-3053
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    Graphene layers on Cu and Ni (111) surfaces in layer controlled graphene growth

    Q. Wang, L. Wei, M. Sullivan, S. Yang and Y. Chen, RSC Adv., 2013, 3, 3046
    DOI: 10.1039/C2RA23105K

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