Regensburg 2025 – scientific programme
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O: Fachverband Oberflächenphysik
O 49: Poster Nanostructures at Surfaces
O 49.2: Poster
Tuesday, March 18, 2025, 18:00–20:00, P2
XPS study of CuO, WO3 and CuWO nanoparticles-based films — •Michal Procházka1, Kalyani Shaji2, Stanislav Haviar2, Eliška Benediktová2, Radomír Čerstvý2, Ján Minár1, Petr Zeman2, and Jiří Čapek2 — 1New Technologies - Research Centre, University of West Bohemia, Univerzitní 8, Plzeň, 301 00, Czech Republic — 2Department of Physics and NTIS - European Centre of Excellence, University of West Bohemia, Univerzitní 8, Plzeň, 301 00, Czech Republic
Interest in clean and sustainable technologies is rapidly growing and hydrogen is widely used in this field. With this development, more emphasis is placed on hydrogen gas sensors as hydrogen poses significant risks due to its explosive nature and flammability [1]. Structural parameters and surface properties plays a significant role in interaction of gas with sensor material [2]. Therefore, the nanoparticles of various materials are more and more explored. To understand the surface evolution after annealing in the air we measured XRD, SEM and XPS of CuO, WO3 and CuWO nanoparticles-based films prepared by magnetron-based gas aggregation technique.
[1] P. S. Chauhan, S. Bhattacharya, Hydrogen gas sensing methods, materials, and approach to achieve parts per billion level detection: A review, Int. J. Hydrogen Energy. 44 (2019) 26076-26099.
[2] H. Zhao, Y. Wang, Y. Zhou, Accelerating the Gas-Solid Interactions for Conductometric Gas Sensors: Impacting Factors and Improvement Strategies, Materials. 16 (2023).
Keywords: XPS; Nanoparticles; Thin films; Gas sensing