Publication detail

Gas sensors based on nanoparticle WO(3) thick films

KHATKO, V., IONESCU, R., LLOBET, E., VILANOVA, X., BREZMES, J., HUBÁLEK, J., MALYSZ, K., CORREIG, X.

Original Title

Gas sensors based on nanoparticle WO(3) thick films

Type

conference paper

Language

English

Original Abstract

The gas sensing properties of chemical sensors based on nanoparticle WO(3) thick films doped with indium and bismuth are studied. Commercial WO(3) nanopowder with spherical diameter up to 33.1 nm was mixed with either InCl(3) or BiCl(3). The sensing films of the sensors were prepared using three different concentrations of each doping metal (1.5 wt.%, 3.0 wt.% and 5.0 wt.%, respectively). The performances of the sensors were tested for different concentrations of ammonia, nitrogen dioxide and carbon monoxide diluted in synthetic dry air. The sensors were operated at 250 degrees C, 300 degrees C and 350 degrees C in order to analyze the effect of the temperature on their responses. The score plot of a Principal Component Analysis (PCA) showed a linear separation between the three investigated gases. The response characteristics of the produced sensors are discussed on the base of structural properties of screen printed nanoparticle WO(3) thick films. The results obtained show the possibility to classify and quantity between different gases with nanoparticle WO(3)-doped gas sensors.

Keywords

Bismuth and indium doped tungsten oxide thick film; WO(3) gas sensor; gas sensing properties; qualitative gas analyses

Authors

KHATKO, V., IONESCU, R., LLOBET, E., VILANOVA, X., BREZMES, J., HUBÁLEK, J., MALYSZ, K., CORREIG, X.

Released

15. 10. 2004

Publisher

IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA

Location

USA

ISBN

0-7803-8692-2

Book

PROCEEDINGS OF THE IEEE SENSORS 2004

Edition

1

Edition number

1

Pages from

188

Pages to

191

Pages count

4

BibTex

@inproceedings{BUT104450,
  author="Jaromír {Hubálek}",
  title="Gas sensors based on nanoparticle WO(3) thick films",
  booktitle="PROCEEDINGS OF THE IEEE SENSORS 2004",
  year="2004",
  series="1",
  number="1",
  pages="188--191",
  publisher="IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA",
  address="USA",
  doi="10.1109/ICSENS.2004.1426132",
  isbn="0-7803-8692-2"
}