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

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.

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Acknowledgments

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

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

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

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