Preparation and characterization of transparent and conductive thin films of single-walled carbon nanotubes

Yutaka Maeda; Kazuki Komoriya; Katsuya Sode; Junki Higo; Takayuki Nakamura; Michio Yamada; Tadashi Hasegawa; Takeshi Akasaka; Takeshi Saito; Jing Lu; Shigeru Nagase

doi:10.1039/C0NR00940G

Preparation and characterization of transparent and conductive thin films of single-walled carbon nanotubes†

Yutaka Maeda,*^ab Kazuki Komoriya,^a Katsuya Sode,^a Junki Higo,^a Takayuki Nakamura,^a Michio Yamada,^a Tadashi Hasegawa,^a Takeshi Akasaka,*^c Takeshi Saito,^bd Jing Lu^e and Shigeru Nagase^f

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* Corresponding authors

^a Department of Chemistry, Tokyo Gakugei University, Tokyo, Japan
E-mail: ymaeda@u-gakugei.ac.jp
Fax: +81-42-329-7512

^b PRESTO, Japan Science and Technology Agency, Chiyoda, Tokyo, Japan

^c Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
E-mail: akasaka@tara.tsukuba.ac.jp
Fax: +81-29-853-6409

^d Nanotube Research Center, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan

^e Mesoscopic Physics Laboratory, Department of Physics, Peking University, Beijing, P. R. China

^f Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Japan

Abstract

Single-walled carbon nanotubes (SWNTs), synthesized using the arc-discharge method and the direct-injection-pyrolytic synthesis (DIPS) method, were dispersed in a tetrahydrofuran solution containing propylamine and used to prepare transparent and conductive thin films on PET films using an airbrush technique. The SWNTs were analyzed using vis-near infrared absorption spectroscopy, Raman spectroscopy, scanning electron microscopy, and atomic force microscopy. The surface resistivity of the SWNT films on the substrates was measured using a four-point probe conductivity measurement. The results revealed that the purity, length, and proportion of the metallic SWNTs are important factors in decreasing the sheet resistance.

Nanoscale

Preparation and characterization of transparent and conductive thin films of single-walled carbon nanotubes†

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Preparation and characterization of transparent and conductive thin films of single-walled carbon nanotubes

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