Higher-order spectra in nanoparticle gas sensors

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

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

It has previously been shown that resistance fluctuations in resistive sensors provide enhanced sensitivity and selectivity for gas detection. We report measurements and analysis of non-Gaussian components in nanoparticle Pdz(WO3)1-z film gas sensors, with z being 0.01 or 0.12, in different ambients. These components can be characterized by higher-order spectra. Contour plots are given of bispectra, and plots of integrated bispectra and trispectra. The phase of the integrated higher-order spectra is analyzed as well

Original languageEnglish
JournalFluctuation and Noise Letters
Volume4
Issue number4
DOIs
Publication statusPublished - Dec 2004

Fingerprint

Bispectrum
Gas Sensor
Nanoparticles
plots
Higher Order
nanoparticles
sensors
Selectivity
gases
selectivity
Fluctuations
Sensor
sensitivity
Gas
Resistance

Keywords

  • Gas detection
  • Gas sensor
  • Nanoparticle
  • Pattern generation
  • Resistance fluctuation
  • Signal processing
  • Tungsten oxide

ASJC Scopus subject areas

  • Mathematics(all)

Cite this

Higher-order spectra in nanoparticle gas sensors. / Smulko, J. M.; Ederth, J.; Kish, L. B.; Heszler, P.; Granqvist, C. G.

In: Fluctuation and Noise Letters, Vol. 4, No. 4, 12.2004.

Research output: Contribution to journalArticle

Smulko, J. M. ; Ederth, J. ; Kish, L. B. ; Heszler, P. ; Granqvist, C. G. / Higher-order spectra in nanoparticle gas sensors. In: Fluctuation and Noise Letters. 2004 ; Vol. 4, No. 4.
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