Using oxidation to increase the electrical conductivity of carbon nanotube electrodes

被引：89

作者：

Tantang, Hosea ^{[1
]}

Ong, Jie Yi ^{[1
]}

Loh, Chen Lung ^{[1
]}

Dong, Xiaochen ^{[1
,2
]}

Chen, Peng ^{[2
]}

Chen, Yuan ^{[2
]}

Hu, Xiao ^{[1
]}

Tan, Lay Poh ^{[1
]}

Li, Lain-Jong ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore, Singapore

[2] Nanyang Technol Univ, Sch Chem & Biomol Engn, Singapore, Singapore

来源：

CARBON | 2009年 / 47卷 / 07期

关键词：

TRANSPARENT; WALL;

D O I：

10.1016/j.carbon.2009.03.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recent studies have demonstrated that significantly low sheet resistance (Rs) (<100 Omega/sq; comparable to ITO) were achieved in single-walled carbon nanotube (SWCNT) films treated with HNO3 followed by thionyl chloride. Here we show that H2SO4 can effectively reduce the Rs of SWCNT electrodes. H2SO4 treatment generates defects (COOH and SO3H functionalities) on SWCNTs and the produced chemical functionalities are beneficial for enhancing the electrical conductivity in SWCNT electrodes. It is plausible that the H2SO4 p-dopes the SWCNTs and the attachment of chemical functionalities helps to stabilize p-doping owing to their electron-deficient property. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1867 / 1870

页数：4

共 9 条

[1] Electronic and vibrational properties of chemically modified single-wall carbon nanotubes [J].

Burghard, M .

SURFACE SCIENCE REPORTS, 2005, 58 (1-4) :1-109

[2] Effect of acid treatment on carbon nanotube-based flexible transparent conducting films [J].

Geng, Hong-Zhang ;

Kim, Ki Kang ;

So, Kang Pyo ;

Lee, Young Sil ;

Chang, Youngkyu ;

Lee, Young Hee .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (25) :7758-+

[3] Doping of single-walled carbon nanotube bundles by Bronsted acids [J].

Graupner, R ;

Abraham, J ;

Vencelová, A ;

Seyller, T ;

Hennrich, F ;

Kappes, MM ;

Hirsch, A ;

Ley, L .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (24) :5472-5476

[4] Carbon nanotube films for transparent and plastic electronics [J].

Gruner, G. .

JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (35) :3533-3539

[5] In situ Raman spectroscopy study of oxidation of double- and single-wall carbon nanotubes [J].

Osswald, S ;

Flahaut, E ;

Gogotsi, Y .

CHEMISTRY OF MATERIALS, 2006, 18 (06) :1525-1533

[6] Improved conductivity of transparent single-wall carbon nanotube thin films via stable postdeposition functionalization [J].

Parekh, Bhavin B. ;

Fanchini, Giovanni ;

Eda, Goki ;

Chhowalla, Manish .

APPLIED PHYSICS LETTERS, 2007, 90 (12)

[7]

Rakov E.G., 2006, NANOMATERIALS HDB, V105-176, P105

[8] Effects of vacancy-carboxyl pair functionalization on electronic properties of carbon nanotubes [J].

Wang, Chenchen ;

Zhou, Gang ;

Wu, Jian ;

Gu, Bing-Lin ;

Duan, Wenhui .

APPLIED PHYSICS LETTERS, 2006, 89 (17)

[9]

WANG YG, 2008, ADV MATER, V20, P1

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