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Integrated Ferroelectrics
An International Journal
Volume 145, 2013 - Issue 1
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Original Articles

Purification and Dispersion of Single-walled Carbon Nanotubes for Transparent Conducting Films

Li-Ting Chen State Key Laboratory of Hollow Fiber Membrane Materials & Membrane Processing, School of Materials Science and Engineering, Tianjin Polytechnic University, No. 399, Binshui Xi Rd., Xiqing Dist., Tianjin, 300387, P. R. China
,
Hong-Zhang Geng State Key Laboratory of Hollow Fiber Membrane Materials & Membrane Processing, School of Materials Science and Engineering, Tianjin Polytechnic University, No. 399, Binshui Xi Rd., Xiqing Dist., Tianjin, 300387, P. R. China
,
Wen-Yi Wang State Key Laboratory of Hollow Fiber Membrane Materials & Membrane Processing, School of Materials Science and Engineering, Tianjin Polytechnic University, No. 399, Binshui Xi Rd., Xiqing Dist., Tianjin, 300387, P. R. China
,
Jing Gao State Key Laboratory of Hollow Fiber Membrane Materials & Membrane Processing, School of Materials Science and Engineering, Tianjin Polytechnic University, No. 399, Binshui Xi Rd., Xiqing Dist., Tianjin, 300387, P. R. China
,
Li-Jun Cui State Key Laboratory of Hollow Fiber Membrane Materials & Membrane Processing, School of Materials Science and Engineering, Tianjin Polytechnic University, No. 399, Binshui Xi Rd., Xiqing Dist., Tianjin, 300387, P. R. China
&
Hu Li State Key Laboratory of Hollow Fiber Membrane Materials & Membrane Processing, School of Materials Science and Engineering, Tianjin Polytechnic University, No. 399, Binshui Xi Rd., Xiqing Dist., Tianjin, 300387, P. R. China
Pages 80-87 | Received 23 Jul 2012, Accepted 01 Feb 2013, Published online: 12 Jul 2013
 
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Abstract

In our study, air oxidation together with three different procedures for purifying single-walled carbon nanotubes (SWCNTs) was investigated. High purity SWCNTs were obtained. The purified SWCNTs were dispersed into four different types of dispersants and different ratio of SWCNTs to dispersant was evaluated in order to find the optimal condition. Transparent conducting films were fabricated by the purified and well dispersed SWCNT solution. Nitric acid concentration was optimized to enhance the film conductivity. SWCNT films with low sheet resistance and high transmittance were obtained by nitric acid treatment.

Acknowledgments

This work is supported by the Natural Science Foundation of Tianjin city (12JCZDJC27300).

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