Mo-CHS-08 - Highly Stable Pt-activated Graphene Gas Sensors with Antimony Oxide Coatings

Event

EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich

Band

Poster

Chapter

Chemical Sensors

Author(s)

A. B. Baloglu, M. Kodu, T. Kahro, R. Pärna, A. Kasikov, R. Jaaniso - University of Tartu,Tartu (Estonia)

Pages

404 - 405

DOI

10.5162/eurosensors2026/Mo-CHS-08

ISBN

978-3-910600-12-6

Price

free

Abstract

We report a significant improvement in the thermal stability of graphene-based gas sensors. By depositing a thin antimony oxide layer on graphene via pulsed laser deposition, a protective effect was observed at operating temperatures above 200 °C under humid air and harsh ozone conditions over extended periods, enabling sensors to maintain a stable response. Importantly, this protective layer preserves the CO-sensing capability introduced by Pt functionalization, indicating that the typical sensitivitystability trade-off can be effectively mitigated without compromising the response to target gases.