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Nanostructured Mixed Phase Vanadium Oxide Thin Films as Highly Sensitive Ammonia Sensing Material
University of Oulu, Finland. (Microelectronics and Material Physics Laboratories)
Linköping University, Department of Physics, Chemistry and Biology, Applied Sensor Science. Linköping University, Faculty of Science & Engineering.
University of Oulu, Finland. (Microelectronics and Material Physics Laboratories)
Linköping University, Department of Physics, Chemistry and Biology, Applied Sensor Science. Linköping University, Faculty of Science & Engineering. (Applied Sensor Science)ORCID iD: 0000-0002-2817-3574
2014 (English)In: Procedia Engineering, ISSN 1877-7058, E-ISSN 1877-7058, Vol. 87, 1035-1038 p.Article in journal (Refereed) Published
Abstract [en]

Pulsed laser deposition was used to produce vanadium oxide thin films on oxidized silicon substrates. Structural characterization concluded that the films consisted of two phases, orthorombic V2O5 and triclinc V7O16. Thin films performance as conductometric gas sensors was tested and they were found to be sensitive to ammonia gas already at ppb-level concentrations. Also selectivity of NH3 to NO was high. The cross-sensitivity measurements between ammonia and NO showed that the responses to these gases can be discriminated from each other even at 20 ppm concentrations. This is promising result from selective catalytic reduction point of view.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 87, 1035-1038 p.
Keyword [en]
Vanadium Oxide; V7O16; V2O5; Thin Film; Gas Sensing; Ammonia
National Category
Physical Sciences Medical Biotechnology
Identifiers
URN: urn:nbn:se:liu:diva-113287DOI: 10.1016/j.proeng.2014.11.338ISI: 000369531700249OAI: oai:DiVA.org:liu-113287DiVA: diva2:780741
Conference
28th European Conference on Solid-State Transducers (EUROSENSORS), Brescia, Italy, Sep 7-10 2014
Available from: 2015-01-15 Created: 2015-01-15 Last updated: 2017-12-05Bibliographically approved

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Björklund, RobertLloyd Spetz, Anita
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