Discrimination and Quantification of Volatile Organic Compounds in the ppb-Range with Gas Sensitive SiC-Field Effect Transistors
2014 (English)Conference paper (Refereed)
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.
Indoor Air Quality; trace level; temperature modulation; pattern recognition; Linear Discriminant Analysis
Other Environmental Engineering
IdentifiersURN: urn:nbn:se:liu:diva-115557DOI: 10.1016/j.proeng.2014.11.561OAI: oai:DiVA.org:liu-115557DiVA: diva2:795531
EUROSENSORS 2014, September 7-10, 2014, Brescia, Italy
FunderEU, FP7, Seventh Framework Programme, 604311