https://doi.org/10.1140/epjd/s10053-023-00775-6
Regular Article – Clusters and Nanostructures
Modeling of field electron emission current with hemispherical protrusions consideration
Institute of Applied Physics, National Academy of Sciences of Ukraine, 58, Petropavlivska, 40000, Sumy, Ukraine
Received:
21
July
2023
Accepted:
23
October
2023
Published online:
7
November
2023
This work is devoted to the theoretical investigation of the surface morphology influence on the dark current. The proposed theoretical model of the cathode surface, considering micron and submicron irregularities, gives a satisfactory agreement of the breakdown field from model cathode with those obtained experimentally. Also, a model of the cathode surface is proposed that takes into account the statistical variation of the radii of curvature of the tips on the surface. It is shown that the presented model of the metal surface allows us to better simulate the field emission current and to match the theoretical model with experimental results.
Ihor Musiienko, Yuliia Lebedynska, Mykhailo Diachenko and Roman Kholodov have contributed equally to this work.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
