skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Photocathodes with protective in-situ graphene gas barrier films and method of making the same

Patent ·
OSTI ID:1568612

According to an embodiment of the present disclosure, a photocathode may include: a mesh having a first surface and a second surface facing away from the first surface, and including metallic, semiconductor or ceramic mesh grid with micron-sized openings in the mesh; a photosensitive film on the first surface of the mesh and extending at least partially into the openings of the mesh; and a graphene layer including one or more graphene sheets on the second surface of the mesh.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Number(s):
10,354,828
Application Number:
15/644,711
OSTI ID:
1568612
Resource Relation:
Patent File Date: 07/07/2017
Country of Publication:
United States
Language:
English

References (18)

High-Brightness, Long Life Thermionic Cathode and Methods of its Fabrication patent-application April 2014
Graphene-based structure, method of suspending graphene membrane, and method of depositing material onto graphene membrane patent-application November 2009
Semiconductor photocathode and method for manufacturing the same patent March 2015
Method and apparatus for producing an electron beam from a thermionic cathode patent July 1985
Method of reducing work function in carbon coated LaB6 cathodes patent October 2017
Discharge Lamp patent-application April 2004
Plastic Outlet Valve for Transport and Storage Containers for Liquids patent-application March 2005
Syringe for Obtaining Nano-Sized Materials for Selective Assays and Related Methods of Use patent-application September 2015
Thermionic Cathode and Method for Manufacturing Thermionic Cathode patent-application May 2014
Method for the reduction of graphene film thickness and the removal and transfer of epitaxial graphene films from SiC substrates patent-application March 2011
Cathode material including rare earth metal used as electron emission source for electron beam apparatus patent October 2004
Metal cathode and indirectly heated cathode assembly having the same patent September 2004
Graphene shield enhanced photocathodes and methods for making the same patent September 2014
Miniature wire mount cathode with modulating electrode patent February 2015
Separation Membranes Formed from Perforated Graphene and Methods for Use Thereof patent-application March 2016
High gain photo and electron multipliers and methods of manufacture thereof patent August 2015
High Brightness Thermionic Cathode patent-application August 2005
Nanocomposite of Graphene and Metal Oxide Materials patent-application November 2012