Low-workfunction photocathodes based on acetylide compounds

Terdik, Joseph Z; Spentzouris, Linda; Terry, Jeffrey H; Harkay, Katherine C; Nemeth, Karoly; Srajer, George

Title: Low-workfunction photocathodes based on acetylide compounds

Abstract

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.

Inventors:: Terdik, Joseph Z; Spentzouris, Linda; Terry, Jr., Jeffrey H; Harkay, Katherine C; Nemeth, Karoly; Srajer, George

Issue Date:: 2014-05-20

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1132049

Patent Number(s):: 8729799

Application Number:: 13/688,605

Assignee:: U.S. Department of Energy (Washington, DC)

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
H01J40/06 - Photo-emissive cathodes

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DOE Contract Number:: AC02-06CH11357

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Nov 29

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Terdik, Joseph Z, Spentzouris, Linda, Terry, Jr., Jeffrey H, Harkay, Katherine C, Nemeth, Karoly, and Srajer, George. Low-workfunction photocathodes based on acetylide compounds.  United States: N. p., 2014. 
        Web.

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                    Terdik, Joseph Z, Spentzouris, Linda, Terry, Jr., Jeffrey H, Harkay, Katherine C, Nemeth, Karoly, & Srajer, George. Low-workfunction photocathodes based on acetylide compounds.  United States.

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                    Terdik, Joseph Z, Spentzouris, Linda, Terry, Jr., Jeffrey H, Harkay, Katherine C, Nemeth, Karoly, and Srajer, George. Tue .  
        "Low-workfunction photocathodes based on acetylide compounds".  United States.  https://www.osti.gov/servlets/purl/1132049.

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@article{osti_1132049,

  title        = {Low-workfunction photocathodes based on acetylide compounds},

  author       = {Terdik, Joseph Z and Spentzouris, Linda and Terry, Jr., Jeffrey H and Harkay, Katherine C and Nemeth, Karoly and Srajer, George},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {5}

}

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Works referenced in this record:

Electron emitter and method of fabrication
patent, May 1976

Gutierrez, William A.; Wilson, Herbert L.
US Patent Document 3,959,038
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3959038

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Title: Low-workfunction photocathodes based on acetylide compounds

Abstract

Citation Formats

Electron emitter and method of fabrication patent, May 1976

Electron emitter and method of fabrication
patent, May 1976