Analysis of the Behavior of Individual Emission Sites on the Surface of a Multi-Tip Field Cathode
- Авторы: Kolosko A.1, Popov E.1, Filippov S.1
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Учреждения:
- Ioffe Physical Technical Institute, Russian Academy of Sciences
- Выпуск: Том 45, № 3 (2019)
- Страницы: 304-307
- Раздел: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/208262
- DOI: https://doi.org/10.1134/S1063785019030283
- ID: 208262
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Аннотация
A method of analysis of the surface of multi-tip field cathodes using data obtained with the aid of a computer-controlled field emission projector and a system of fast high-voltage scanning is described. An investigation of a polymer/carbon nanotube composite field electron emitter by this method was used to determine the distribution of individual emission sites over the surface of a multi-tip field cathode and to estimate variation of the work function of separate emission sites depending on the applied voltage. The contributions of separate groups of emission sites to a change of the shape of current–voltage characteristic of a multi-tip cathode have been numerically estimated.
Об авторах
A. Kolosko
Ioffe Physical Technical Institute, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: agkolosko@mail.ru
Россия, St. Petersburg, 194021
E. Popov
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: agkolosko@mail.ru
Россия, St. Petersburg, 194021
S. Filippov
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: agkolosko@mail.ru
Россия, St. Petersburg, 194021