Gas sensors made of multiwall carbon nanotubes modified by tin dioxide

V. M. Arakelyan, M. S. Aleksanyan, R. V. Hovhannisyan, G. E. Shahnazaryan, V. M. Aroutiounian, K. Hernádi, Z. Németh, L. Forro

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Thin film gas sensors made of nanocomposite MWCNT·SnO2(1:66), semiconductor compound WO3·SnO2(1:9), and also multicomponent structure MWCNT·SnO2(1:66)/WO3·SnO2(1:9) have been fabricated by high-frequency magnetron sputtering and electron-beam deposition methods. Sensitivity of the prepared sensors to influence of gases, such as hydrogen, methane, butane, and also ethanol vapors, was investigated. Sensors made of MWCNT·SnO2(1:66) and WO3·SnO2(1:9) show appreciable sensitivity to hydrogen and alcohol vapors already at working body temperature 100-150°C. Sensors made of MWCNT·SnO2(1:66)·WO3·SnO2(1:9) can be used for detection of low concentrations of hydrogen and ethanol vapors; besides, monotonous increase in the structure sensitivity with increase in content of the alcohol vapors allows one to apply these sensors also for fast detection of concentration of these vapors in air.

Original languageEnglish
Pages (from-to)176-183
Number of pages8
JournalJournal of Contemporary Physics
Volume48
Issue number4
DOIs
Publication statusPublished - Jul 2013

Fingerprint

dioxides
tin
carbon nanotubes
vapors
sensors
gases
sensitivity
alcohols
ethyl alcohol
hydrogen
body temperature
butanes
low concentrations
magnetron sputtering
nanocomposites
methane
electron beams
air
thin films

Keywords

  • carbon nanotubes
  • gas sensor
  • sensitivity
  • tin dioxide

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Arakelyan, V. M., Aleksanyan, M. S., Hovhannisyan, R. V., Shahnazaryan, G. E., Aroutiounian, V. M., Hernádi, K., ... Forro, L. (2013). Gas sensors made of multiwall carbon nanotubes modified by tin dioxide. Journal of Contemporary Physics, 48(4), 176-183. https://doi.org/10.3103/S1068337213040063

Gas sensors made of multiwall carbon nanotubes modified by tin dioxide. / Arakelyan, V. M.; Aleksanyan, M. S.; Hovhannisyan, R. V.; Shahnazaryan, G. E.; Aroutiounian, V. M.; Hernádi, K.; Németh, Z.; Forro, L.

In: Journal of Contemporary Physics, Vol. 48, No. 4, 07.2013, p. 176-183.

Research output: Contribution to journalArticle

Arakelyan, VM, Aleksanyan, MS, Hovhannisyan, RV, Shahnazaryan, GE, Aroutiounian, VM, Hernádi, K, Németh, Z & Forro, L 2013, 'Gas sensors made of multiwall carbon nanotubes modified by tin dioxide', Journal of Contemporary Physics, vol. 48, no. 4, pp. 176-183. https://doi.org/10.3103/S1068337213040063
Arakelyan VM, Aleksanyan MS, Hovhannisyan RV, Shahnazaryan GE, Aroutiounian VM, Hernádi K et al. Gas sensors made of multiwall carbon nanotubes modified by tin dioxide. Journal of Contemporary Physics. 2013 Jul;48(4):176-183. https://doi.org/10.3103/S1068337213040063
Arakelyan, V. M. ; Aleksanyan, M. S. ; Hovhannisyan, R. V. ; Shahnazaryan, G. E. ; Aroutiounian, V. M. ; Hernádi, K. ; Németh, Z. ; Forro, L. / Gas sensors made of multiwall carbon nanotubes modified by tin dioxide. In: Journal of Contemporary Physics. 2013 ; Vol. 48, No. 4. pp. 176-183.
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