Alkali semi-metal films and method and apparatus for fabricating them

Bhandari, Harish B.; Nagarkar, Vivek V.; Ovechkina, Olena E.; Frisch, Henry J.; Attenkofer, Klaus; Smedley, John M.

Title: Alkali semi-metal films and method and apparatus for fabricating them

Abstract

Methods and systems for fabricating a film, such as, for example, a photocathode, having a tailored band structure and thin-film components that can be tailored for specific applications, such as, for example photocathode having a high quantum efficiency, and simple components fabricated by those methods.

Inventors:: Bhandari, Harish B.; Nagarkar, Vivek V.; Ovechkina, Olena E.; Frisch, Henry J.; Attenkofer, Klaus; Smedley, John M.

Issue Date:: 2018-03-13

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1426751

Patent Number(s):: 9916958

Application Number:: 14/608,777

Assignee:: Radiation Monitoring Devices, Inc. (Watertown, MA); The University of Chicago (Chicago, IL); Brookhaven Science Associates, LLC (Upton, NY)

Patent Classifications (CPCs):: C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH

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C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C14/0036 - {Reactive sputtering}
C23C14/025 - {Metallic sublayers}
C23C14/06 - characterised by the coating material
C23C14/165 - {by cathodic sputtering}
C23C14/3414 - {Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy}
C23C14/545 - {using measurement on deposited material}
C23C14/548 - {Controlling the composition}

C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
C30B23/02 - Epitaxial-layer growth
C30B29/40 - AIIIBV compounds {wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi}

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/63 - optically excited

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J1/34 - Photo-emissive cathodes
H01J9/12 - of photo-emissive cathodes

H - ELECTRICITY H02 - GENERATION H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
H02S50/15 - using optical means, e.g. using electroluminescence

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/50 - Photovoltaic [PV] energy

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DOE Contract Number:: SC0009540, SC0008172, AC02-98CH10886, SC0012704

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Jan 29

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Bhandari, Harish B., Nagarkar, Vivek V., Ovechkina, Olena E., Frisch, Henry J., Attenkofer, Klaus, and Smedley, John M.. Alkali semi-metal films and method and apparatus for fabricating them.  United States: N. p., 2018. 
        Web.

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                    Bhandari, Harish B., Nagarkar, Vivek V., Ovechkina, Olena E., Frisch, Henry J., Attenkofer, Klaus, & Smedley, John M.. Alkali semi-metal films and method and apparatus for fabricating them.  United States.

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                    Bhandari, Harish B., Nagarkar, Vivek V., Ovechkina, Olena E., Frisch, Henry J., Attenkofer, Klaus, and Smedley, John M.. Tue .  
        "Alkali semi-metal films and method and apparatus for fabricating them".  United States.  https://www.osti.gov/servlets/purl/1426751.

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@article{osti_1426751,

  title        = {Alkali semi-metal films and method and apparatus for fabricating them},

  author       = {Bhandari, Harish B. and Nagarkar, Vivek V. and Ovechkina, Olena E. and Frisch, Henry J. and Attenkofer, Klaus and Smedley, John M.},

  abstractNote = {Methods and systems for fabricating a film, such as, for example, a photocathode, having a tailored band structure and thin-film components that can be tailored for specific applications, such as, for example photocathode having a high quantum efficiency, and simple components fabricated by those methods.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {3}

}

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Works referenced in this record:

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Coating Material Based On A Copper-Indium-Gallium Alloy, In Particular For The Production Of Sputter Targets, Tubular Cathodes And The Like
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Intercalation compounds, method for preparing them and use thereof, particularly in pyrotechnics
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US Patent Document 5,972,506
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5972506

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Title: Alkali semi-metal films and method and apparatus for fabricating them

Abstract

Citation Formats

Theoretical Analysis of a Geis-Spindt Cold Cathode Diamond Emitter journal, September 1996

Hot Wall Evaporation of High-Sensitivity, High-Resolution CeBr3 Scintillator journal, October 2012

Preparation of a basic catalyst avoiding high temperatures patent-application, November 2001

Development of high-gain gaseous photomultipliers for the visible spectral range journal, July 2009

Coating Material Based On A Copper-Indium-Gallium Alloy, In Particular For The Production Of Sputter Targets, Tubular Cathodes And The Like patent-application, May 2008

Vacuum vapor deposition apparatus patent-application, July 2006

ALD reactor and method with controlled wall temperature patent-application, October 2002

Intercalation compounds, method for preparing them and use thereof, particularly in pyrotechnics patent, October 1999

Theoretical Analysis of a Geis-Spindt Cold Cathode Diamond Emitter
journal, September 1996

Hot Wall Evaporation of High-Sensitivity, High-Resolution CeBr₃ Scintillator
journal, October 2012

Preparation of a basic catalyst avoiding high temperatures
patent-application, November 2001

Development of high-gain gaseous photomultipliers for the visible spectral range
journal, July 2009

Coating Material Based On A Copper-Indium-Gallium Alloy, In Particular For The Production Of Sputter Targets, Tubular Cathodes And The Like
patent-application, May 2008

Vacuum vapor deposition apparatus
patent-application, July 2006

ALD reactor and method with controlled wall temperature
patent-application, October 2002

Intercalation compounds, method for preparing them and use thereof, particularly in pyrotechnics
patent, October 1999