On the Selectivity of Nanostructured Semiconductor Gas Sensors
2007 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 244, no 11, 4331-4335 p.Article in journal (Refereed) Published
Different methods are presented for improving chemical selectivity and sensitivity of semiconductor gassensors consisting of nanostructured thin films. Pure and doped WO3 nanoparticles, forming nanoporouslayers, are used as test material. The chemical selectivity is increased by applying different operating tem-peratures, using temperature modulation and pattern recognition methods, and by a fluctuation enhancedspectroscopy technique. The selectivity improvement of a fluctuation enhanced sensor is compared to thatof a classical resistive sensor.
Place, publisher, year, edition, pages
2007. Vol. 244, no 11, 4331-4335 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-14406DOI: 10.1002/pssb.200776183ISI: 000251355800104OAI: oai:DiVA.org:uu-14406DiVA: diva2:42176