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Title: Graphene shield enhanced photocathodes and methods for making the same

Abstract

Disclosed are graphene shield enhanced photocathodes, such as high QE photocathodes. In certain embodiments, a monolayer graphene shield membrane ruggedizes a high quantum efficiency photoemission electron source by protecting a photosensitive film of the photocathode, extending operational lifetime and simplifying its integration in practical electron sources. In certain embodiments of the disclosed graphene shield enhanced photocathodes, the graphene serves as a transparent shield that does not inhibit photon or electron transmission but isolates the photosensitive film of the photocathode from reactive gas species, preventing contamination and yielding longer lifetime.

Inventors:
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1151826
Patent Number(s):
8,823,259
Application Number:
13/886,517
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Moody, Nathan Andrew. Graphene shield enhanced photocathodes and methods for making the same. United States: N. p., 2014. Web.
Moody, Nathan Andrew. Graphene shield enhanced photocathodes and methods for making the same. United States.
Moody, Nathan Andrew. 2014. "Graphene shield enhanced photocathodes and methods for making the same". United States. https://www.osti.gov/servlets/purl/1151826.
@article{osti_1151826,
title = {Graphene shield enhanced photocathodes and methods for making the same},
author = {Moody, Nathan Andrew},
abstractNote = {Disclosed are graphene shield enhanced photocathodes, such as high QE photocathodes. In certain embodiments, a monolayer graphene shield membrane ruggedizes a high quantum efficiency photoemission electron source by protecting a photosensitive film of the photocathode, extending operational lifetime and simplifying its integration in practical electron sources. In certain embodiments of the disclosed graphene shield enhanced photocathodes, the graphene serves as a transparent shield that does not inhibit photon or electron transmission but isolates the photosensitive film of the photocathode from reactive gas species, preventing contamination and yielding longer lifetime.},
doi = {},
url = {https://www.osti.gov/biblio/1151826}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 02 00:00:00 EDT 2014},
month = {Tue Sep 02 00:00:00 EDT 2014}
}