Simulation of Space-Charge-Limited Current for Hot Electrons With Initial Velocity in a Vacuum Diode
In this article, a sheet model is utilized to model and simulate hot electron transport properties in vacuum gap. Based on this model, emitted electrons with constant initial velocities and Maxwell-Boltzmann distribution are considered. Numerical analyses of the potential, electric field, current de...
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Published in | IEEE transactions on electron devices Vol. 68; no. 7; pp. 3604 - 3610 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
01.07.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | In this article, a sheet model is utilized to model and simulate hot electron transport properties in vacuum gap. Based on this model, emitted electrons with constant initial velocities and Maxwell-Boltzmann distribution are considered. Numerical analyses of the potential, electric field, current density, velocity, and phase-space distribution are also performed. The accuracy of this model is verified by comparing with analytical results. Furthermore, we studied the velocity distribution of the emitted electrons at any position in the interelectrode gap and observed a significant change in the distribution. |
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ISSN: | 0018-9383 1557-9646 |
DOI: | 10.1109/TED.2021.3085164 |