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Project detail
Duration: 01.03.2024 — 28.02.2025
Funding resources
Brno University of Technology - Vnitřní projekty VUT
- whole funder (2024-01-01 - 2025-12-31)
On the project
Following the obtained results from a previous IGA project (CEITEC VUT/FEKT-J-23-8307), graphite-based field emission cathodes will be tested as scanning tunneling microscopy (STM) probes. The best performance was obtained when graphite microlayer was applied on a substrate of glass microtips. These probes were able to operate at 1 and 10^-4 Pa and to scan the topography of a ~20 µm2 gold layer. The glass-graphite probes were higher in performance than tungsten polycrystalline probes, which requires in-situ cleaning before STM measurements.
Mark
CEITEC VUT/FEKT-J-24-8567
Default language
Czech
People responsible
Fohlerová Zdenka, doc. Mgr., Ph.D. - fellow researcherKošelová Zuzana, Mgr. - fellow researcherSobola Dinara, doc. Mgr., Ph.D. - fellow researcherAllaham Mohammad Mahmoud, M.A., M.Sc. - principal person responsible
Units
Central European Institute of Technology BUT- beneficiary (2024-01-01 - 2024-12-31)Advanced Ceramic Materials- internal (2024-01-01 - 2024-12-31)Department of Microelectronics- internal (2024-01-01 - 2024-12-31)Faculty of Electrical Engineering and Communication- internal (2024-01-01 - 2024-12-31)
Results
Mohammad M. Allaham. Comprehensive Analysis of E478 Single-Component Epoxy Resin and Tungsten-E478 Interface for Metallic-Polymer Composite Electron Source Applications. ACS OMEGA, 2024, vol. 9, no. 28, p. 30975-30985. ISSN: 2470-1343.Detail
KOŠELOVÁ, Z.; BURDA, D.; ALLAHAM, M.; FOHLEROVÁ, Z.; KNÁPEK, A. From deformation to performance: WO3-coated tungsten emitters created by anodization. In 2024 37th International Vacuum Nanoelectronics Conference (IVNC). IEEE, 2024. p. 79-80. ISBN: 979-8-3503-7975-4.Detail
KOŠELOVÁ, Z.; KNÁPEK, A.; FOHLEROVÁ, Z. Optimization of Tungsten Anodization for Thin WO₃ Layers for Aplication in Cold Field Emission Cathodes. Proceedings of 14th solid state surfaces and interfaces. Bratislava: Comenius University Bratislava, 2024. p. 31-34. ISBN: 978-80-223-5941-2.Detail
KNÁPEK, A.; ALLAHAM, M.; KOŠELOVÁ, Z.; BURDA, D.; PODSTRÁNSKÝ, J.; MOUSA, M.; SOBOLA, D. Comparative analysis of surface layer functionality in STM and AFM probes: Effects of coating on emission characteristics. Journal of Electrical Engineering, 2024, vol. 75, no. 4, p. 268-274. ISSN: 1339-309X.Detail
KOŠELOVÁ, Z.; KNÁPEK, A.; FOHLEROVÁ, Z. Analysing Geometrical Effects on Electric Field Distribution in Silicon-Based Pyramid for Cold Field Emission. 10th IMAPS FLASH CONFERENCE 2024. 10. 2024. p. 54-55. ISBN: 9788021462793.Detail
ALLAHAM, M.; DARADKEH, S.; AL-BRAIKAT, H.; DALLAEV, R.; BURDA, D.; KOŠELOVÁ, Z.; AL-AKHRAS, M.; JABER, A.; MOUSA, M.; SOBOLA, D.; KOLAŘÍK, V.; KNÁPEK, A. Comprehensive analysis of charge carriers dynamics through the honeycomb structure of graphite thin films and polymer graphite with applications in cold field emission and scanning tunneling microscopy. SURFACES AND INTERFACES, 2024, vol. 53, no. October 2024, p. 1-15. ISSN: 2468-0230.Detail