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String like Assembly of Aligned Single-Wall Carbon Nanotubes in a Single-Chiral State

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Published 6 June 2013 • Copyright (c) 2013 The Japan Society of Applied Physics
, , Citation Hideki Kawai et al 2013 Appl. Phys. Express 6 065103 DOI 10.7567/APEX.6.065103

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Author affiliations

1 Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan

2 Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan

3 Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8564, Japan

4 Department of Applied Science, Waseda University, Shinjyuku, Tokyo 169-8555, Japan

Dates

  1. Received 27 April 2013
  2. Accepted 26 May 2013
  3. Published

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Abstract

We prepared string like assemblies of aligned single-wall carbon nanotubes (SWCNTs) in a (6,5) nearly single-chiral state. We observed that by simply adjusting the temperature and incubation time of SWCNT monodispersed solutions, string-like assemblies of aligned SWCNTs could be generated. Polarized Raman and scanning electron microscopy measurements clearly indicated that the SWCNTs were aligned parallel to the string axis. These assemblies exhibited good field-effect performances, exhibiting an on/off ratio of 6.8×103 and a maximum mobility of 106.5 cm2 V-1 s-1.

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10.7567/APEX.6.065103