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Discrimination and Quantification of Volatile Organic Compounds in the ppb-Range with Gas Sensitive SiC-Field Effect Transistors
Linköping University, Department of Physics, Chemistry and Biology, Applied Sensor Science. Linköping University, The Institute of Technology. Saarland University, Lab for Measurement Technology, Germany.
Saarland University, Lab for Measurement Technology, Germany.
Linköping University, Department of Physics, Chemistry and Biology, Applied Sensor Science. Linköping University, The Institute of Technology.
Saarland University, Germany. (Lab for Measurement Technology)
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2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Gas sensitive FETs based on SiC have been studied for the discrimination and quantification of hazardous volatile organiccompounds (VOCs) in the low ppb range. The sensor performance was increased by temperature cycled operation (TCO) anddata evaluation based on multivariate statistics, here Linear Discriminant Analysis (LDA). Discrimination of formaldehyde,naphthalene and benzene with varying concentrations in the ppb range is demonstrated. In addition, it is shown that naphthalenecan be quantified in the relevant concentration range independent of the relative humidity and against a high ethanol background.Hence, gas sensitive SiC-FETs are suitable sensors for determining indoor air quality.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 87, 604-607 p.
Keyword [en]
Indoor Air Quality; trace level; temperature modulation; pattern recognition; Linear Discriminant Analysis
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:liu:diva-115557DOI: 10.1016/j.proeng.2014.11.561OAI: oai:DiVA.org:liu-115557DiVA: diva2:795531
Conference
EUROSENSORS 2014, September 7-10, 2014, Brescia, Italy
Funder
EU, FP7, Seventh Framework Programme, 604311
Available from: 2015-03-16 Created: 2015-03-16 Last updated: 2015-03-19Bibliographically approved

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Bur, ChristianPuglisi, DonatellaLloyd Spetz, AnitaAndersson, Mike

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