MP38 - Impedance Spectroscopy: A Key to More Selective and Reliable Chemoresistive Gas Sensors
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster I
- Chapter
- Gas Sensors
- Author(s)
- M. Magoni - Eurac Research, Bolzano (Italy), G. Andrea, M. Valt, P. Tosato, A. Orlando, R. Furlan - Fondazione Bruno Kessler, Trento (Italy)
- Pages
- 279 - 280
- DOI
- 10.5162/EUROSENSORS2025/MP38
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
This proceeding explores the usage of impedance spectroscopy to enhance the performance ofchemoresistive gas sensors. By employing and studying a frequency dependent response across various concen-tration of two gases, Hydrogen and Methane, we were able to identify distinct impedance signatures. Preliminaryresults suggest improvement regarding the time of response, limit of detection, sensitivity and selectivity comparedto a more conventional approach by using the resistive readouts. Moreover, impedance leads into a richer datasetfor sensor characterization integrating data analysis techniques to support both gas classification and quantification.