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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.:
LANL (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) LANL
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. Tue . "Graphene shield enhanced photocathodes and methods for making the same". United States. doi:. 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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 02 00:00:00 EDT 2014},
month = {Tue Sep 02 00:00:00 EDT 2014}
}

Patent:

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