Electro-conductive nanotubular sheet of indium tin oxide as fabricated from the cellulose template

Yoshitaka Aoki, Jianguo Huang, Toyoki Kunitake

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Free-standing, nanotubular ITO sheet with different In/Sn ratios was fabricated by the surface sol-gel process using cellulose filter paper as template. The resulting materials have a hierarchical structure originating from the morphology of cellulosic paper, and the ITO nanotubes are composed of interconnected layers of ITO nanocrystals of a few nanometres. Semiconducting behavior was observed at temperatures above room temperature, probably because electronic migration is strongly affected by the scattering at the boundary between nanocrystals. The ITO sheet with In/Sn ratio of 93.5/6.5 showed an intrinsic electronic conductivity (0.53 S cm-1) that is higher than those of other nanostructured ITO, and a very low apparent density (3.3% of neat ITO). These features indicate that the nanotubular ITO sheet has a potential use for chemical sensors and other devices.

Original languageEnglish
Pages (from-to)292-297
Number of pages6
JournalJournal of Materials Chemistry
Volume16
Issue number3
DOIs
Publication statusPublished - Mar 9 2006
Externally publishedYes

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Tin oxides
Cellulose
Indium
Nanocrystals
Chemical sensors
Nanotubes
Sol-gel process
Scattering
Temperature
indium tin oxide

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Electro-conductive nanotubular sheet of indium tin oxide as fabricated from the cellulose template. / Aoki, Yoshitaka; Huang, Jianguo; Kunitake, Toyoki.

In: Journal of Materials Chemistry, Vol. 16, No. 3, 09.03.2006, p. 292-297.

Research output: Contribution to journalArticle

Aoki, Yoshitaka ; Huang, Jianguo ; Kunitake, Toyoki. / Electro-conductive nanotubular sheet of indium tin oxide as fabricated from the cellulose template. In: Journal of Materials Chemistry. 2006 ; Vol. 16, No. 3. pp. 292-297.
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