Single-walled carbon nanotube networks for ethanol vapor sensing applications

I.V. Anoshkin (Corresponding Author), A.G. Nasibulin (Corresponding Author), P.R. Mudimela, M. He, Vladimir Ermolov, E.I. Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

25 Citations (Scopus)

Abstract

Networks of pristine high quality single walled carbon nanotubes (SWNTs), the SWNTs after Ar-plasma treatment (from 2 to 12 min) and carbon nanobuds (CNBs) have been tested for ethanol vapor sensing. It was found that the pristine high quality SWNTs do not exhibit any ethanol sensitivity, while the introduction of defects in the tubes results in the appearance of the ethanol sensitivity. The CNB network showed ethanol sensitivity without plasma treatment. Both CNB and low defect (after 3 min treatment) SWNT networks exhibit significant drift in the resistance baseline, while heavily plasma-treated (9 min) SWNTs exhibited high ethanol vapor sensitivity without the baseline change. The mechanisms of the ethanol sensitivity and stability after the plasma irradiation are attributed to the formation of sensitive dangling bonds in the SWNTs and formation of defect channels facilitating access of the ethanol vapor to all parts of the bundled nanotubes.
Original languageEnglish
Pages (from-to)77-86
Number of pages10
JournalNano Research
Volume6
Issue number2
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

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Single-walled carbon nanotubes (SWCN)
Ethanol
Vapors
Plasmas
Carbon
Defects
Dangling bonds
Nanotubes
Irradiation

Keywords

  • Ar-plasma
  • carbon nanobuds
  • ethanol vapor sensor
  • nanotubes
  • single walled carbon

Cite this

Anoshkin, I. V., Nasibulin, A. G., Mudimela, P. R., He, M., Ermolov, V., & Kauppinen, E. I. (2013). Single-walled carbon nanotube networks for ethanol vapor sensing applications. Nano Research, 6(2), 77-86. https://doi.org/10.1007/s12274-012-0282-6
Anoshkin, I.V. ; Nasibulin, A.G. ; Mudimela, P.R. ; He, M. ; Ermolov, Vladimir ; Kauppinen, E.I. / Single-walled carbon nanotube networks for ethanol vapor sensing applications. In: Nano Research. 2013 ; Vol. 6, No. 2. pp. 77-86.
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Anoshkin, IV, Nasibulin, AG, Mudimela, PR, He, M, Ermolov, V & Kauppinen, EI 2013, 'Single-walled carbon nanotube networks for ethanol vapor sensing applications', Nano Research, vol. 6, no. 2, pp. 77-86. https://doi.org/10.1007/s12274-012-0282-6

Single-walled carbon nanotube networks for ethanol vapor sensing applications. / Anoshkin, I.V. (Corresponding Author); Nasibulin, A.G. (Corresponding Author); Mudimela, P.R.; He, M.; Ermolov, Vladimir; Kauppinen, E.I.

In: Nano Research, Vol. 6, No. 2, 2013, p. 77-86.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Kauppinen, E.I.

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AB - Networks of pristine high quality single walled carbon nanotubes (SWNTs), the SWNTs after Ar-plasma treatment (from 2 to 12 min) and carbon nanobuds (CNBs) have been tested for ethanol vapor sensing. It was found that the pristine high quality SWNTs do not exhibit any ethanol sensitivity, while the introduction of defects in the tubes results in the appearance of the ethanol sensitivity. The CNB network showed ethanol sensitivity without plasma treatment. Both CNB and low defect (after 3 min treatment) SWNT networks exhibit significant drift in the resistance baseline, while heavily plasma-treated (9 min) SWNTs exhibited high ethanol vapor sensitivity without the baseline change. The mechanisms of the ethanol sensitivity and stability after the plasma irradiation are attributed to the formation of sensitive dangling bonds in the SWNTs and formation of defect channels facilitating access of the ethanol vapor to all parts of the bundled nanotubes.

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