Direct exfoliation of graphite using a non-ionic polymer surfactant for fabrication of transparent and conductive graphene films

被引：58

作者：

Kang, Min Soo ^{[1
]}

Kim, Kyung Tae ^{[1
]}

Lee, Jea Uk ^{[2
]}

Jo, Won Ho ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea

[2] Korea Inst Mat Sci, Composite Mat Res Grp, Chang Won 642831, Gyeongnam, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 09期

关键词：

LARGE-AREA; CARBON NANOTUBES; OXIDE-FILMS; REDUCTION;

D O I：

10.1039/c2tc00586g

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A high-yielding dispersion of graphene at high concentration in solvent is critical for practical applications. Herein, we demonstrate the formation of a stable dispersion of pristine graphene in ethanol by exfoliating graphite flakes into individual graphene layers using a non-ionic polymer surfactant under bath-type sonication. Oligothiophene-terminated poly(ethylene glycol) was synthesized and used as a non-ionic and amphiphilic surfactant for exfoliating graphite into graphene. A high-quality graphene film was fabricated from the exfoliated graphene solution by the vacuum filtration method. TEM and SEM reveal that the size of exfoliated graphene flakes is larger than 1 mu m. When the graphene film was treated with nitric acid and thionyl chloride after washing with solvent, the film showed high performance with a sheet resistance of 0.3 k Omega sq(-1) and a transparency of 74% at 550 nm.

引用

页码：1870 / 1875

页数：6

共 53 条

[1]

Bae S, 2010, NAT NANOTECHNOL, V5, P574, DOI [10.1038/nnano.2010.132, 10.1038/NNANO.2010.132]

[2] Evaluation of solution-processed reduced graphene oxide films as transparent conductors [J].

Becerril, Hdctor A. ;

Mao, Jie ;

Liu, Zunfeng ;

Stoltenberg, Randall M. ;

Bao, Zhenan ;

Chen, Yongsheng .

ACS NANO, 2008, 2 (03) :463-470

[3] Electronic confinement and coherence in patterned epitaxial graphene [J].

Berger, Claire ;

Song, Zhimin ;

Li, Xuebin ;

Wu, Xiaosong ;

Brown, Nate ;

Naud, Cecile ;

Mayou, Didier ;

Li, Tianbo ;

Hass, Joanna ;

Marchenkov, Atexei N. ;

Conrad, Edward H. ;

First, Phillip N. ;

de Heer, Wait A. .

SCIENCE, 2006, 312 (5777) :1191-1196

[4] Graphene-based liquid crystal device [J].

Blake, Peter ;

Brimicombe, Paul D. ;

Nair, Rahul R. ;

Booth, Tim J. ;

Jiang, Da ;

Schedin, Fred ;

Ponomarenko, Leonid A. ;

Morozov, Sergey V. ;

Gleeson, Helen F. ;

Hill, Ernie W. ;

Geim, Andre K. ;

Novoselov, Kostya S. .

NANO LETTERS, 2008, 8 (06) :1704-1708

[5] Thiophene adsorption on Single Wall Carbon Nanotubes and graphene [J].

Denis, Pablo A. ;

Iribarne, Federico .

JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 2010, 957 (1-3) :114-119

[6] Ultra-large single-layer graphene obtained from solution chemical reduction and its electrical properties [J].

Dong, Xiaochen ;

Su, Ching-Yuan ;

Zhang, Wenjing ;

Zhao, Jianwen ;

Ling, Qidan ;

Huang, Wei ;

Chen, Peng ;

Li, Lain-Jong .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (09) :2164-2169

[7] Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material [J].

Eda, Goki ;

Fanchini, Giovanni ;

Chhowalla, Manish .

NATURE NANOTECHNOLOGY, 2008, 3 (05) :270-274

[8] Raman spectrum of graphene and graphene layers [J].

Ferrari, A. C. ;

Meyer, J. C. ;

Scardaci, V. ;

Casiraghi, C. ;

Lazzeri, M. ;

Mauri, F. ;

Piscanec, S. ;

Jiang, D. ;

Novoselov, K. S. ;

Roth, S. ;

Geim, A. K. .

PHYSICAL REVIEW LETTERS, 2006, 97 (18)

[9] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[10] Graphene: Status and Prospects [J].

Geim, A. K. .

SCIENCE, 2009, 324 (5934) :1530-1534

← 1 2 3 4 5 6 →