Open access
Sep 2026
Influence of average electron injection velocity on space-charge-limited current in vacuum devices
Space-charge-limited current is a fundamental constraint in electron emission systems, traditionally described by the Child–Langmuir law for one-dimensional parallel plate geometry assuming zero electron injection velocity from the cathode. First, a simplified one-dimensional model of space charge is introduced in whic...
Nathaniel Hernandez, Marc Cahay, Jonathan Ludwick et al.
· Journal of Applied Physics · 0 citations