Application of the molecular beam technique to the growth of alkali metal antimonide photocathodes: Study of the growth kinetics
Abstract
Alkali metal source generators, developed to use with a molecular beam technique for the fabrication of photocathodes (Sb, Na, K, Cs) are discussed. The simultaneous use of the different sources makes it possible to obtain homogeneous, pure layers whose stoichiometry is controlled by regulating the sources. As the chemical reactions between the elements only occur on the substrate, the technique provides a simple means of controlling crystal layer growth. Results obtained in the growth of trialkali photocathodes are shown to be reproducible while characterization of the fabricated materials indicates the value of the technique for the development of photocathodes with high photoelectric sensitivity.
- Publication:
-
Final Report Laboratoires d'Electronique et de Physique Appliquee
- Pub Date:
- March 1977
- Bibcode:
- 1977depa.rept.....M
- Keywords:
-
- Antimonides;
- Molecular Beams;
- Photocathodes;
- Stoichiometry;
- Vacuum Deposition;
- Cesium Vapor;
- Crystal Structure;
- Electromagnetic Absorption;
- Potassium;
- Sodium Vapor;
- Ultrahigh Vacuum;
- Atomic and Molecular Physics