OT5.154 - Gas Sensing Performance of CuO Sensors Functionalized with Different Stabilized Au-NP
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Lectures
- Chapter
- OT5 - Chemical Sensors
- Author(s)
- C. Maier, L. Egger, A. Köck - Materials Center Leoben Forschung GmbH, Leoben (Austria), S. Becker, J. S. Niehaus - Fraunhofer Center for Applied Nanotechnology, Hamburg (Germany)
- Pages
- 119 - 120
- DOI
- 10.5162/EUROSENSORSXXXVI/OT5.154
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
In this work, we present chemical nanosensors based on ultrathin CuO/Cu2O films, which are fabricated by thermal evaporation and subsequent oxidation on SiN-based micro-hotplate chips. The sensors are tested against various target gases like carbon monoxide (CO), carbon dioxide (CO2), and hydro-carbons (HCmix). The CuO/Cu2O films are functionalized with Au nanoparticles (Au-NPs) stabilized with different types of ligands: PEG-MUA, MPA and citrate. While the Au-NPs clearly increase the sensor performance in particular for CO2, we have found that the ligands have a significant impact.