P5 - Electrical Characterization of CeO 2 /SnO 2 Hydrogen Sensors
- Event
- iCCC2026 - iCampus Cottbus Conference
2026-05-05 - 2026-05-07
Cottbus - Band
- Poster
- Chapter
- Bio- & Umweltsensorik
- Author(s)
- A. Mudundi, C. A. Chavarin, C. Wenger - IHP Leibniz-Institut für innovative Mikroelektronik, Frankfurt (Oder), A. Kalra, I. A. Fischer, C. Morales, J. I. Flege - BTU Cottbus-Senftenberg, Cottbus
- Pages
- 139 - 142
- DOI
- 10.5162/iCCC2026/P5
- ISBN
- 978-3-910600-10-2
- Price
- free
Abstract
Growing environmental and energy sustainability challenges are driving increased interest in hydrogen as an emerging clean energy carrier and practical alternative to fossil fuels. Effective monitoring of H₂ concentrations in air is a critical requirement to ensure the safe operation of H₂-based technologies. Metal oxide (MOx)-based resistive sensing is widely investigated, but their elevated working temperatures, often exceeding 300°C, lead to substantial increases in power consumption and reduce device longevity. Therefore, achieving H₂ sensing at or near room temperature is desirable for durable and scalable use. In this work, we report the use of CeO₂ and SnO₂-based heterostructures as potential sensing materials capable of lowering the operating temperature for H₂ detection in air. With this objective, we characterise the electrical behavior of the fabricated sensor devices under varying voltage and temperature conditions to assess baseline sensor currents. The gas sensing performance is also evaluated upon exposure to a 1% H₂/air mixture.