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Abstract
Resistive gas sensors are very popular and reliable but suffer from low selectivity and sensitivity. Various methods have been suggested to improve both features without increasing the number of sensors in gas detection systems. Fluctuation enhanced gas sensing was proposed to improve gas detection efficiency by analyzing low-frequency resistance fluctuations, and noise parameters can be more informative than the single DC resistance and can advance gas detection systems by improving detection and limiting energy consumption. Gas sensor temperature can be modulated as well to further increase selectivity and sensitivity. Finally, some gas sensing layers exhibit a photo-catalytic effect, which can be applied to improve detection and yield lower operating temperatures of the gas sensing materials.
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Authors (8)
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Claes G. Granqvist
- Uppsala University Department of Engineering Sciences The Ångström Laboratory
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Radu Ionescu
- University Tarragona, Spain Department of Electronics Rovira i Virgily University Tarragona
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Fatima E. Annanouch
- University Tarragona, Spain Department of Electronics Rovira i Virgily University Tarragona
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Eduard Llobet
- University Tarragona, Spain Department of Electronics Rovira i Virgily University Tarragona
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Laszlo B. Kish
- University College Station Department of Electrical Engineering Texas A&M
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Keywords
Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- Proceedings of 2014 Eighth International Conference on Sensing Technology strony 13 - 18
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Smulko J., Trawka M., Hasse L., Granqvist C., Ionescu R., Annanouch F., Llobet E., Kish L.: New approaches for improving selectivity and sensitivity of resistive gas sensors: A review// Proceedings of 2014 Eighth International Conference on Sensing Technology/ Liverpool, UK: The Built Environment and Sustainable Technologies (BEST) Research Institute, 2014, s.13-18
- DOI:
- Digital Object Identifier (open in new tab) 10.1108/sr-12-2014-0747
- Verified by:
- Gdańsk University of Technology
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