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On the Selectivity of Nanostructured Semiconductor Gas Sensors
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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
Abstract [en]

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.

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2007. Vol. 244, no 11, 4331-4335 p.
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Engineering and Technology
URN: urn:nbn:se:uu:diva-14406DOI: 10.1002/pssb.200776183ISI: 000251355800104OAI: oai:DiVA.org:uu-14406DiVA: diva2:42176
Available from: 2008-01-30 Created: 2008-01-30 Last updated: 2011-03-25Bibliographically approved

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Granqvist, Claes G
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Solid State Physics
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