Fabrication of flexible transparent conductive films from long double-walled carbon nanotubes

Naoki Imazu, Tsuyohiko Fujigaya, Naotoshi Nakashima

Research output: Contribution to journalArticle

16 Citations (Scopus)


The fabrication of flexible transparent conducting films (TCFs) is important for the development of the next-generation flexible devices. In this study, we used double-walled carbon nanotubes (DWCNTs) as the starting material and described a fabrication method of flexible TCFs. We have determined in a quantitative way that the key factors are the length and the dispersion states of the DWCNTs as well as the weight-ratios of dispersant polymer/DWCNTs. By controlling such factors, we have readily fabricated a flexible highly transparent (94% transmittance) and conductive (surface resistivity=320 Ω sq-1) DWCNT film without adding any chemical doping that is often used to reduce the surface resistivity. By applying a wet coating, we have succeeded in the fabrication of large-scale conducting transparent DWCNT films based on the role-to-role method.

Original languageEnglish
Article number025005
JournalScience and Technology of Advanced Materials
Issue number2
Publication statusPublished - Apr 2014

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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