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Discrimination and Quantification of Volatile Organic Compounds in the ppb-Range with Gas Sensitive SiC-Field Effect Transistors.

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Title: Discrimination and Quantification of Volatile Organic Compounds in the ppb-Range with Gas Sensitive SiC-Field Effect Transistors.
Authors: Bur, C.1,2 chrbu@ifm.liu.se, Bastuck, M.2, Puglisi, D.1, Schütze, A.2, Spetz, A. Lloyd1, Andersson, M.1
Source: Procedia Engineering. 2014, Vol. 87, p604-607. 4p.
Subjects: Volatile organic compounds, Predicate calculus, Gas detectors, Silicon carbide, Field-effect transistors, Pattern recognition systems
Abstract: Gas sensitive FETs based on SiC have been studied for the discrimination and quantification of hazardous volatile organic compounds (VOCs) in the low ppb range. The sensor performance was increased by temperature cycled operation (TCO) and data 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 naphthalene can 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. [ABSTRACT FROM AUTHOR]
Copyright of Procedia Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 100235481
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  Data: <searchLink fieldCode="DE" term="%22Volatile+organic+compounds%22">Volatile organic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Predicate+calculus%22">Predicate calculus</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+detectors%22">Gas detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+carbide%22">Silicon carbide</searchLink><br /><searchLink fieldCode="DE" term="%22Field-effect+transistors%22">Field-effect transistors</searchLink><br /><searchLink fieldCode="DE" term="%22Pattern+recognition+systems%22">Pattern recognition systems</searchLink>
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  Data: Gas sensitive FETs based on SiC have been studied for the discrimination and quantification of hazardous volatile organic compounds (VOCs) in the low ppb range. The sensor performance was increased by temperature cycled operation (TCO) and data 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 naphthalene can 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Procedia Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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      – SubjectFull: Gas detectors
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