Hexagonal Single Crystal Domains of Few-Layer Graphene on Copper Foils

被引：281

作者：

Robertson, Alex W. ^{[1
]}

Warner, Jamie H. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

NANO LETTERS | 2011年 / 11卷 / 03期

关键词：

Graphene; chemical vapor deposition; APCVD; CVD; LARGE-AREA; FILMS;

D O I：

10.1021/nl104142k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hexagonal-shaped single crystal domains of few layer graphene (FLG) are synthesized on copper foils using atmospheric pressure chemical vapor deposition with a high methane flow. Scanning electron microscopy reveals that the graphene domains have a hexagonal shape and are randomly orientated on the copper foil. However, the sites of graphene nucleation exhibit some correlation by forming linear rows. Transmission electron microscopy is used to examine the folded edges of individual domains and reveals they are few-layer graphene consisting of approximately 5-10 layers in the central region and thinning out toward the edges of the domain. Selected area electron diffraction of individual isolated domains reveals they are single crystals with AB Bernal stacking and free from the intrinsic rotational stacking faults that are associated with turbostratic graphite. We study the time-dependent growth dynamics of the domains and show that the final continuous FLG film is polycrystalline, consisting of randomly connected single crystal domains.

引用

页码：1182 / 1189

页数：8

共 20 条

[11] Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils [J].

Li, Xuesong ;

Cai, Weiwei ;

An, Jinho ;

Kim, Seyoung ;

Nah, Junghyo ;

Yang, Dongxing ;

Piner, Richard ;

Velamakanni, Aruna ;

Jung, Inhwa ;

Tutuc, Emanuel ;

Banerjee, Sanjay K. ;

Colombo, Luigi ;

Ruoff, Rodney S. .

SCIENCE, 2009, 324 (5932) :1312-1314

[12] 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

[13] Anomalies in thickness measurements of graphene and few layer graphite crystals by tapping mode atomic force microscopy [J].

Nemes-Incze, P. ;

Osvath, Z. ;

Kamaras, K. ;

Biro, L. P. .

CARBON, 2008, 46 (11) :1435-1442

[14] Electronic properties of graphene [J].

Novoselov, K. S. ;

Morozov, S. V. ;

Mohinddin, T. M. G. ;

Ponomarenko, L. A. ;

Elias, D. C. ;

Yang, R. ;

Barbolina, I. I. ;

Blake, P. ;

Booth, T. J. ;

Jiang, D. ;

Giesbers, J. ;

Hill, E. W. ;

Geim, A. K. .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2007, 244 (11) :4106-4111

[15] 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

[16] 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

[17] 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

[18] Large Area, Few-Layer Graphene Films on Arbitrary Substrates by Chemical Vapor Deposition [J].

Reina, Alfonso ;

Jia, Xiaoting ;

Ho, John ;

Nezich, Daniel ;

Son, Hyungbin ;

Bulovic, Vladimir ;

Dresselhaus, Mildred S. ;

Kong, Jing .

NANO LETTERS, 2009, 9 (01) :30-35

[19]

Warner JH, 2008, NANO LETT, V8, P1005, DOI [10.1021/nl0726104, 10.1021/nl8025949]

[20] Graphene Islands on Cu Foils: The Interplay between Shape, Orientation, and Defects [J].

Wofford, Joseph M. ;

Nie, Shu ;

McCarty, Kevin F. ;

Bartelt, Norman C. ;

Dubon, Oscar D. .

NANO LETTERS, 2010, 10 (12) :4890-4896

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