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- Title
Analysis of the Behavior of Individual Emission Sites on the Surface of a Multi-Tip Field Cathode.
- Authors
Kolosko, A. G.; Popov, E. O.; Filippov, S. V.
- Abstract
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.
- Subjects
TRANSISTORS; CATHODES; FIELD emission; CURRENT-voltage characteristics; ELECTRON work function; CARBON composites
- Publication
Technical Physics Letters, 2019, Vol 45, Issue 3, p304
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785019030283