Graphite Anode Surface to Aid Electron Emission in Field Emission Diodes
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20
Graphite is used on the inside anode surface of a field-emission diode so that the prepulse voltage creates a uniform reproducible plasma sheath on the surface of the cathode. Electron emission is then not delayed nor weak or erratic since there is no reliance upon metallic irregularities of the cathode surface to start the cathode plasma sheath.