An Investigation of Ag-O-Cs Photoemissive Surfaces Using Auger Electron Spectroscopy.
Abstract
An investigation of the relationship between the photoemissive characteristics and the surface elemental compositon of Ag-O-Cs photocathodes was carried out. In support of this investigation it became desirable to examine the validity of the photocathode model proposed by Borziak, Bibik, and Kramerenko with respect to more recently acquired photoelectron energy distribution (EDC) and Auger electron emission data. The basis for this model is that the Ag-O-Cs photocathode is a composite of metallic silver particles dispersed in a cesium oxide matrix. With this premise, the photoelectric sensitivity in the ultraviolet (lambda < 300 nm) is ascribed to the cesium oxide and that in the visible and infrared (lambda > 300 nm) to the metallic silver particles. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1973
- Accession Number
- AD0767340
Entities
People
- Thomas W. Rusch
Organizations
- University of Minnesota