Hybrid emitter all back contact solar cell

Title: Hybrid emitter all back contact solar cell

Abstract

An all back contact solar cell has a hybrid emitter design. The solar cell has a thin dielectric layer formed on a backside surface of a single crystalline silicon substrate. One emitter of the solar cell is made of doped polycrystalline silicon that is formed on the thin dielectric layer. The other emitter of the solar cell is formed in the single crystalline silicon substrate and is made of doped single crystalline silicon. The solar cell includes contact holes that allow metal contacts to connect to corresponding emitters.

Inventors:: Loscutoff, Paul; Rim, Seung

Issue Date:: 2016-04-12

Research Org.:: SunPower Corporation, San Jose, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1246834

Patent Number(s):: 9312406

Application Number:: 13/720,721

Assignee:: SunPower Corporation (San Jose, CA)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L31/022441 - {Electrode arrangements specially adapted for back-contact solar cells}

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
Y02E10/546 - Polycrystalline silicon PV cells
Y02E10/50 - Photovoltaic [PV] energy

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L31/1804 - {comprising only elements of Group IV of the Periodic System}
H01L31/022458 - {for emitter wrap-through [EWT] type solar cells, e.g. interdigitated emitter-base back-contacts}

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
Y02E10/547 - Monocrystalline silicon PV cells

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L31/182 - {Special manufacturing methods for polycrystalline Si, e.g. Si ribbon, poly Si ingots, thin films of polycrystalline Si}
H01L31/028 - including, apart from doping material or other impurities, only elements of Group IV of the Periodic System
H01L31/0682 - {back-junction, i.e. rearside emitter, solar cells, e.g. interdigitated base-emitter regions back-junction cells}
H01L31/068 - the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
H01L31/18 - Processes or apparatus peculiar to the manufacture or treatment of these devices or of parts thereof
H01L31/03682 - {including only elements of Group IV of the Periodic System}

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DOE Contract Number:: FC36-07GO17043

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Dec 19

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; 36 MATERIALS SCIENCE

Citation Formats


                    Loscutoff, Paul, and Rim, Seung. Hybrid emitter all back contact solar cell.  United States: N. p., 2016. 
        Web.

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                    Loscutoff, Paul, & Rim, Seung. Hybrid emitter all back contact solar cell.  United States.

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                    Loscutoff, Paul, and Rim, Seung. Tue .  
        "Hybrid emitter all back contact solar cell".  United States.  https://www.osti.gov/servlets/purl/1246834.

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@article{osti_1246834,

  title        = {Hybrid emitter all back contact solar cell},

  author       = {Loscutoff, Paul and Rim, Seung},

  abstractNote = {An all back contact solar cell has a hybrid emitter design. The solar cell has a thin dielectric layer formed on a backside surface of a single crystalline silicon substrate. One emitter of the solar cell is made of doped polycrystalline silicon that is formed on the thin dielectric layer. The other emitter of the solar cell is formed in the single crystalline silicon substrate and is made of doped single crystalline silicon. The solar cell includes contact holes that allow metal contacts to connect to corresponding emitters.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {4}

}

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Works referenced in this record:

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Photovoltaic solar cell
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Title: Hybrid emitter all back contact solar cell

Abstract

Citation Formats

Photovoltaic solar cells: An overview of state-of-the-art cell development and environmental issues journal, January 2005

Method of fabricating back surface point contact solar cells patent, May 1990

Radiation resistant passivation of silicon solar cells patent, July 1991

Bilevel contact solar cells patent, October 1991

Method of fabricating polysilicon emitters for solar cells patent, October 1991

Method of forming thin silicon oxide film with high dielectric breakdown and hot carrier resistance patent, December 1997

Back side contact solar cell with doped polysilicon regions patent, December 2008

Back side contact solar cell with doped polysilicon regions patent-application, December 2009

Photovoltaic solar cell patent, September 2015

Photovoltaic solar cells: An overview of state-of-the-art cell development and environmental issues
journal, January 2005

Method of fabricating back surface point contact solar cells
patent, May 1990

Radiation resistant passivation of silicon solar cells
patent, July 1991

Bilevel contact solar cells
patent, October 1991

Method of fabricating polysilicon emitters for solar cells
patent, October 1991

Method of forming thin silicon oxide film with high dielectric breakdown and hot carrier resistance
patent, December 1997

Back side contact solar cell with doped polysilicon regions
patent, December 2008

Back side contact solar cell with doped polysilicon regions
patent-application, December 2009

Photovoltaic solar cell
patent, September 2015