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Proceedings 2017, 1(4), 476; doi:10.3390/proceedings1040476

Separation of Sensitivity Contributions in Tin Oxide Thick Film Sensors by Transmission Line Model Measurements at Isothermal and Thermally Modulated Operation

1
Institute for Sensor and Information Systems, Karlsruhe University of Applied Sciences, 76133 Karlsruhe, Germany
2
Department of Chemistry and Food Chemistry, Dresden University of Technology, 01069 Dresden, Germany
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 9 August 2017
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Abstract

Transmission line modelling (TLM) techniques were used to study the sensitivity behaviour to CO and propene in distinct regions of tin oxide thick film gas sensors operated in isothermal and thermo-cyclic mode. The sensitive layer showed an increased sensitivity to propene in the vicinity of the Pt electrodes at isothermal operation and pronounced specific features at thermo-cyclic operation. Simulation by Finite Element Analysis (FAE) gives insight into the electrical behaviour of the contact area and enables a detailed analysis of the thickness dependence of sensitivity effects.
Keywords: transmission line modeling; tin oxide; thermo-cyclic mode transmission line modeling; tin oxide; thermo-cyclic mode
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Knoblauch, J.; Murugavel, K.; Kohler, H.; Guth, U. Separation of Sensitivity Contributions in Tin Oxide Thick Film Sensors by Transmission Line Model Measurements at Isothermal and Thermally Modulated Operation. Proceedings 2017, 1, 476.

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