A step towards multipoint hydrogen sensing: development of metal hydride-coated FBG hydrogen sensors
Hydrogen, a key component of a net-carbon free society, requires precise sensing solutions. This research focuses on the development of metal hydride-coated Fibre Bragg Grating (FBG) based hydrogen sensors, marking a significant step towards the realisation of multipoint hydrogen sensing systems—a growing demand in the industry. The performance of three FBG sensors coated with nanometre-thick tantalum, palladium, and palladium-gold hydrogen sensing metal thin films, deposited via magnetron sputtering, is presented. Among these, the novel tantalum sensor exhibited the best performance, achieving a minimum detection limit of 50 ppm and and an enhanced sensitivity below 0.1% H<sub>2</sub> levels at room temperature.
Authors
- Roger M. Groves (ORCID: https://orcid.org/0000-0001-9169-9256)
- Kasun Prabuddha Wasantha Dissanayake (ORCID: https://orcid.org/0000-0002-9845-0047)
- Herman Schreuders (ORCID: https://orcid.org/0000-0002-7993-2489)
- Lars J. Bannenberg (ORCID: https://orcid.org/0000-0001-8150-3694)
- Ziqing Yuan
- H. Sandra Dewi
Institutions
- Delft University of Technology (NL)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3061713
- Citations
- 1
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.73