Macroscopic graphene membranes and their extraordinary stiffness

被引：515

作者：

Booth, Tim J. ^{[1
]}

Blake, Peter ^{[2
]}

Nair, Rahul R. ^{[1
]}

Jiang, Da ^{[2
]}

Hill, Ernie W. ^{[3
]}

Bangert, Ursel ^{[4
]}

Bleloch, Andrew ^{[5
]}

Gass, Mhairi ^{[5
]}

Novoselov, Kostya S. ^{[1
]}

Katsnelson, M. I. ^{[6
]}

Geim, A. K. ^{[1
]}

机构：

[1] Univ Manchester, Schuster Lab, Dept Phys & Astron, Manchester M13 9PL, Lancs, England

[2] Graphene Ind Ltd, Manchester M16 8TA, Lancs, England

[3] Univ Manchester, Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England

[4] Univ Manchester, Ctr Mat Sci, Manchester M1 7HS, Lancs, England

[5] Daresbury Lab, SuperSTEM, Daresbury WA4 4AD, Cheshire, England

[6] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

来源：

NANO LETTERS | 2008年 / 8卷 / 08期

关键词：

D O I：

10.1021/nl801412y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The properties of suspended graphene are currently attracting enormous interest, but the small size of available samples and the difficulties in making them severely restrict the number of experimental techniques that can be used to study the optical, mechanical, electronic, thermal, and other characteristics of this one-atom-thick material. Here, we describe a new and highly reliable approach for making graphene membranes of a macroscopic size (currently up to 100 mu m in diameter) and their characterization by transmission electron microscopy. In particular, we have found that long graphene beams supported by only one side do not scroll or fold, in striking contrast to the current perception of graphene as a supple thin fabric, but demonstrate sufficient stiffness to support extremely large loads, millions of times exceeding their own weight, in agreement with the presented theory. Our work opens many avenues for studying suspended graphene and using it in various micromechanical systems and electron microscopy.

引用

页码：2442 / 2446

页数：5

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