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Issue 22, 2015
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Peculiar pressure effect on Poisson ratio of graphone as a strain damper

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Abstract

Hydrogenation is an effective way to modify the electronic and magnetic properties of graphene. The semi-hydrogenated graphene, known as “graphone”, has promising applications in nanoelectronics including field-effect transistors. However, the elastic limit of this two-dimensional material remains unknown despite its importance in applications as well as strain engineering to tailor functions and properties. Here we report using first-principles calculations an abnormal increase in the Poisson ratio of graphone in response to an increase in pressure. This peculiar behavior is proposed to originate from the asymmetry of hydrogenation and could be used to design a nanodevice of strain damper to reduce harmful strains in graphene-based nanoelectronics.

Graphical abstract: Peculiar pressure effect on Poisson ratio of graphone as a strain damper

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Publication details

The article was received on 30 Dec 2014, accepted on 30 Mar 2015 and first published on 01 Apr 2015


Article type: Communication
DOI: 10.1039/C4NR07665F
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Citation: Nanoscale, 2015,7, 9975-9979
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    Peculiar pressure effect on Poisson ratio of graphone as a strain damper

    Q. Peng, A. K. Dearden, X. Chen, C. Huang, X. Wen and S. De, Nanoscale, 2015, 7, 9975
    DOI: 10.1039/C4NR07665F

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