Direct Imaging of Lattice Atoms and Topological Defects in Graphene Membranes

被引：972

作者：

Meyer, Jannik C. ^{[1
,2
]}

Kisielowski, C. ^{[3
]}

Erni, R. ^{[3
]}

Rossell, Marta D. ^{[3
]}

Crommie, M. F. ^{[1
,2
]}

Zettl, A. ^{[1
,2
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA

来源：

NANO LETTERS | 2008年 / 8卷 / 11期

关键词：

D O I：

10.1021/nl801386m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a transmission electron microscopy investigation of graphene membranes, crystalline foils with a thickness of only I atom. By using aberration-correction in combination with a monochromator, 1-angstrom resolution is achieved at an acceleration voltage of only 80 kV. The low voltage is crucial for the stability of these membranes. As a result, every individual carbon atom in the field of view is detected and resolved. We observe a highly crystalline lattice along with occasional point defects. The formation and annealing of Stone-Wales defects is observed in situ. Multiple five- and seven-membered rings appear exclusively in combinations that avoid dislocations and disclinations, in contrast to previous observations on highly curved (tube- or fullerene-like) graphene surfaces.

引用

页码：3582 / 3586

页数：5

共 28 条

[11]

Kirkland E. J., 2020, Advanced Computing in Electron Microscopy, V3rd

[12]

KISIELOWSKI C, 2008, NAT MAT IN PRESS

[13] High-resolution imaging with an aberration-corrected transmission electron microscope [J].

Lentzen, M ;

Jahnen, B ;

Jia, CL ;

Thust, A ;

Tillmann, K ;

Urban, K .

ULTRAMICROSCOPY, 2002, 92 (3-4) :233-242

[14] On the roughness of single- and bi-layer graphene membranes [J].

Meyer, J. C. ;

Geim, A. K. ;

Katsnelson, M. I. ;

Novoselov, K. S. ;

Obergfell, D. ;

Roth, S. ;

Girit, C. ;

Zettl, A. .

SOLID STATE COMMUNICATIONS, 2007, 143 (1-2) :101-109

[15] Hydrocarbon lithography on graphene membranes [J].

Meyer, Jannik C. ;

Girit, C. O. ;

Crommie, M. F. ;

Zettl, A. .

APPLIED PHYSICS LETTERS, 2008, 92 (12)

[16] The structure of suspended graphene sheets [J].

Meyer, Jannik C. ;

Geim, A. K. ;

Katsnelson, M. I. ;

Novoselov, K. S. ;

Booth, T. J. ;

Roth, S. .

NATURE, 2007, 446 (7131) :60-63

[17] Brittle and ductile behavior in carbon nanotubes [J].

Nardelli, MB ;

Yakobson, BI ;

Bernholc, J .

PHYSICAL REVIEW LETTERS, 1998, 81 (21) :4656-4659

[18] Two-dimensional atomic crystals [J].

Novoselov, KS ;

Jiang, D ;

Schedin, F ;

Booth, TJ ;

Khotkevich, VV ;

Morozov, SV ;

Geim, AK .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (30) :10451-10453

[19] Two-dimensional gas of massless Dirac fermions in graphene [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Katsnelson, MI ;

Grigorieva, IV ;

Dubonos, SV ;

Firsov, AA .

NATURE, 2005, 438 (7065) :197-200

[20] Electric field effect in atomically thin carbon films [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Zhang, Y ;

Dubonos, SV ;

Grigorieva, IV ;

Firsov, AA .

SCIENCE, 2004, 306 (5696) :666-669

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