Fluctuation enhanced gas sensing using UV irradiated Au-nanoparticle-decorated WO3-nanowire films Academic Article uri icon


  • Abstract WO3 nanowires (WO3-NWs) decorated with gold nanoparticles (AuNPs) were utilized in resistive gas sensor devices to detect ethanol by use of fluctuation enhanced sensing (FES). The experimental system records both DC resistance and fluctuations of the sensing film. Our data verify that the sensitivity and selectivity of the gas sensor are improved by applying FES when the sensor is stimulated with a combination of UV light and heating. We conclude that UV light can produce improved gas sensing at low operating temperatures for the investigated AuNP-decorated WO3-NWs films.

published proceedings

  • International Journal on Smart Sensing and Intelligent Systems

author list (cited authors)

  • Trawka, M., Smulko, J., Hasse, L., Granqvist, C. G., Ionescu, R., Annanouch, F. E., ETSE-DEEEA, E. L., & Kish, L. B.

citation count

  • 5

complete list of authors

  • Trawka, Maciej||Smulko, Janusz||Hasse, Lech||Granqvist, Claes G||Ionescu, Radu||Annanouch, Fatima E||ETSE-DEEEA, Eduard Llobet||Kish, Laszlo B

publication date

  • January 2014