Thermionic cathode with a graphene sealing layer and method of making the same

Moody, Nathan; Gupta, Gautam; Mohite, Aditya

Title: Thermionic cathode with a graphene sealing layer and method of making the same

Abstract

According to an embodiment of the present disclosure, a thermionic cathode includes: a cathode body having an outer surface, and a sealing layer including one or more graphene sheets on the outer surface of the cathode body. According to another embodiment of the present disclosure, a method for manufacturing a thermionic cathode includes: depositing a sealing layer including one or more graphene sheets on an outer surface of a cathode body.

Inventors:: Moody, Nathan; Gupta, Gautam; Mohite, Aditya

Issue Date:: 2020-06-09

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1651001

Patent Number(s):: 10679816

Application Number:: 15/644,704

Assignee:: Triad National Security, LLC (Los Alamos, NM)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J1/142 - with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
H01J2201/02 - Arrangements for eliminating deleterious effects
H01J9/042 - {Manufacture, activation of the emissive part}

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DOE Contract Number:: AC52-06NA25396

Resource Type:: Patent

Resource Relation:: Patent File Date: 07/07/2017

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Moody, Nathan, Gupta, Gautam, and Mohite, Aditya. Thermionic cathode with a graphene sealing layer and method of making the same.  United States: N. p., 2020. 
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                    Moody, Nathan, Gupta, Gautam, & Mohite, Aditya. Thermionic cathode with a graphene sealing layer and method of making the same.  United States.

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                    Moody, Nathan, Gupta, Gautam, and Mohite, Aditya. Tue .  
        "Thermionic cathode with a graphene sealing layer and method of making the same".  United States.  https://www.osti.gov/servlets/purl/1651001.

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@article{osti_1651001,

  title        = {Thermionic cathode with a graphene sealing layer and method of making the same},

  author       = {Moody, Nathan and Gupta, Gautam and Mohite, Aditya},

  abstractNote = {According to an embodiment of the present disclosure, a thermionic cathode includes: a cathode body having an outer surface, and a sealing layer including one or more graphene sheets on the outer surface of the cathode body. According to another embodiment of the present disclosure, a method for manufacturing a thermionic cathode includes: depositing a sealing layer including one or more graphene sheets on an outer surface of a cathode body.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {6}

}

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Works referenced in this record:

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Moody, Nathan
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Vancil, Bernard K.
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High gain photo and electron multipliers and methods of manufacture thereof
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Choi, Jong-Seo; Lee, Hyek-Bok; Joo, Kyu-Nam
US Patent Document 6,800,990
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Semiconductor photocathode and method for manufacturing the same
patent, March 2015

Fuke, Shunro; Matsuo, Tetsuji; Ishigami, Yoshihiro
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Similar Records

Title: Thermionic cathode with a graphene sealing layer and method of making the same

Abstract

Citation Formats

Method and apparatus for producing an electron beam from a thermionic cathode patent, July 1985

Method for the reduction of graphene film thickness and the removal and transfer of epitaxial graphene films from SiC substrates patent-application, March 2011

Graphene-based structure, method of suspending graphene membrane, and method of depositing material onto graphene membrane patent-application, November 2009

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

High gain photo and electron multipliers and methods of manufacture thereof patent, August 2015

Method of reducing work function in carbon coated LaB6 cathodes patent, October 2017

Nanocomposite of Graphene and Metal Oxide Materials patent-application, November 2012

Cathode material including rare earth metal used as electron emission source for electron beam apparatus patent, October 2004

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 for the reduction of graphene film thickness and the removal and transfer of epitaxial graphene films from SiC substrates
patent-application, March 2011

Graphene-based structure, method of suspending graphene membrane, and method of depositing material onto graphene membrane
patent-application, November 2009

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

High gain photo and electron multipliers and methods of manufacture thereof
patent, August 2015

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patent, October 2017

Nanocomposite of Graphene and Metal Oxide Materials
patent-application, November 2012

Cathode material including rare earth metal used as electron emission source for electron beam apparatus
patent, October 2004

Semiconductor photocathode and method for manufacturing the same
patent, March 2015