Fabrication of densely packed multi-walled carbon nanotube ultrathin films using a liquid-liquid interface

Jun Matsui, Kohei Yamamoto, Nobuhiro Inokuma, Hironori Orikasa, Takashi Kyotani, Tokuji Miyashita

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

We describe the fabrication of a densely packed ultrathin film of multi-walled carbon nanotubes (MWCNTs) at a liquid-liquid interface. The MWCNTs, which were synthesized using an anodic aluminium oxide (AAO) film as a template, were dispersed in water. Then hexane was added to the dispersion to create the liquid-liquid interface. The MWCNTs were smoothly assembled at the interface to form an ultrathin film when ethanol was added to the MWCNT water dispersion/hexane solution. The ultrathin film can be transferred onto a solid substrate using the Langmuir-Blodgett deposition technique. With addition of 10 vol% ethanol to the solution, an ultrathin film of MWCNTs with coverage of about 70% was fabricated. The multilayer film was fabricated by repeated deposition of the ultrathin film.

Original languageEnglish
Pages (from-to)3806-3811
Number of pages6
JournalJournal of Materials Chemistry
Volume17
Issue number36
DOIs
Publication statusPublished - 2007 Sep 17

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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