Spectral Extension of Potassium Photocathode Sensitivity
- 1 December 1966
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 37 (13) , 4768-4773
- https://doi.org/10.1063/1.1708135
Abstract
Photoelectric measurements on potassium deposited in argon at pressures of 1 to 24 Torr have shown photoemission which is spectrally extended into the red when compared to vacuum‐deposited potassium. In addition, these cathodes have exhibited a larger magnitude of increase of output current with increase of anode voltage than that obtained with vacuum‐deposited cathodes. A mechanism based upon the cathode structure formed by gas ambient deposition is presented to explain these effects.This publication has 3 references indexed in Scilit:
- Thermionic EmissionReviews of Modern Physics, 1949
- Electron emission in intense electric fieldsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1928
- The thermionic and photo-electric properties of the electro- positive metalsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1923