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Title: Low-workfunction photocathodes based on acetylide compounds

Patent ·
OSTI ID:1132049

A low-workfunction photocathode includes a photoemissive material employed as a coating on the photocathode. The photoemissive material includes A.sub.nMC.sub.2, where A is a first metal element, the first element is an alkali metal, an alkali-earth element or the element Al; n is an integer that is 0, 1, 2, 3 or 4; M is a second metal element, the second metal element is a transition metal or a metal stand-in; and C.sub.2 is the acetylide ion C.sub.2.sup.2-. The photoemissive material includes a crystalline structure or non-crystalline structure of rod-like or curvy 1-dimensional polymeric substructures with MC.sub.2 repeating units embedded in a matrix of A.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
8,729,799
Application Number:
13/688,605
OSTI ID:
1132049
Resource Relation:
Patent File Date: 2012 Nov 29
Country of Publication:
United States
Language:
English

References (1)

Electron emitter and method of fabrication patent May 1976