Comparison of classical and fluctuation-enhanced gas sensing with Pd xWO 3 nanoparticle films

J. Ederth, J. M. Smulko, L. B. Kish, P. Heszler, C. G. Granqvist

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Nanoparticle films of Pd xWO 3, with x being 0.01 or 0.12, were made by dual-beam gas evaporation. The stochastic signal component (fluctuation-enhanced signal) originating from resistance fluctuations and the dc resistance (classical sensor signal) were measured during exposure to ethanol and hydrogen gas. For ethanol concentrations exceeding 50 ppm, changes in the resistance fluctuations gave 300 times larger detection sensitivity than changes in the dc resistance.

Original languageEnglish
Pages (from-to)310-315
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume113
Issue number1
DOIs
Publication statusPublished - Jan 17 2006

Fingerprint

Ethanol
Gases
Nanoparticles
nanoparticles
gases
Hydrogen
Evaporation
ethyl alcohol
Sensors
evaporation
sensors
hydrogen

Keywords

  • Gas detection
  • Gas evaporation
  • Gas sensor
  • Resistance fluctuation
  • Tungsten oxide

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Comparison of classical and fluctuation-enhanced gas sensing with Pd xWO 3 nanoparticle films. / Ederth, J.; Smulko, J. M.; Kish, L. B.; Heszler, P.; Granqvist, C. G.

In: Sensors and Actuators, B: Chemical, Vol. 113, No. 1, 17.01.2006, p. 310-315.

Research output: Contribution to journalArticle

Ederth, J. ; Smulko, J. M. ; Kish, L. B. ; Heszler, P. ; Granqvist, C. G. / Comparison of classical and fluctuation-enhanced gas sensing with Pd xWO 3 nanoparticle films. In: Sensors and Actuators, B: Chemical. 2006 ; Vol. 113, No. 1. pp. 310-315.
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