Method of making a back contacted solar cell

Gee, James M

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Title: Method of making a back contacted solar cell

Abstract

A back-contacted solar cell having laser-drilled vias connecting the front-surface carrier-collector junction to an electrode grid on the back surface. The structure may also include a rear surface carrier-collector junction connected to the same grid. The substrate is connected to a second grid which is interdigitated with the first. Both grids are configured for easy series connection with neighboring cells. Several processes are disclosed to produce the cell.

Inventors:

Gee, James M ^[1]

Albuquerque, NM

Issue Date:: 1995-01-01

Research Org.:: AT&T

OSTI Identifier:: 870168

Patent Number(s):: 5468652

Assignee:: Sandia Corporation (Albuquerque, NM)

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
H01L31/022458 - {for emitter wrap-through [EWT] type solar cells, e.g. interdigitated emitter-base back-contacts}
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
H01L31/0682 - {back-junction, i.e. rearside emitter, solar cells, e.g. interdigitated base-emitter regions back-junction 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
Y02E10/547 - Monocrystalline silicon PV cells

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S438/928 - Front and rear surface processing
Y10S438/94 - Laser ablative material removal

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DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; contacted; solar; cell; back-contacted; laser-drilled; vias; connecting; front-surface; carrier-collector; junction; electrode; grid; surface; structure; rear; connected; substrate; interdigitated; grids; configured; easy; series; connection; neighboring; cells; processes; disclosed; produce; rear surface; solar cell; series connection; neighboring cell; electrode grid; junction connected; /438/136/

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                    Gee, James M. Method of making a back contacted solar cell.  United States: N. p., 1995. 
        Web.

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                    Gee, James M. Method of making a back contacted solar cell.  United States.

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                    Gee, James M. Sun .  
        "Method of making a back contacted solar cell".  United States.  https://www.osti.gov/servlets/purl/870168.

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@article{osti_870168,

  title        = {Method of making a back contacted solar cell},

  author       = {Gee, James M},

  abstractNote = {A back-contacted solar cell having laser-drilled vias connecting the front-surface carrier-collector junction to an electrode grid on the back surface. The structure may also include a rear surface carrier-collector junction connected to the same grid. The substrate is connected to a second grid which is interdigitated with the first. Both grids are configured for easy series connection with neighboring cells. Several processes are disclosed to produce the cell.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1995},

  month        = {1}

}

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Works referenced in this record:

Emitter wrap-through solar cell
conference, January 1993

Gee, J. M.; Schubert, W. K.; Basore, P. A.
Conference Record of the Twenty Third IEEE Photovoltaic Specialists Conference - 1993 (Cat. No.93CH3283-9)
https://doi.org/10.1109/PVSC.1993.347173

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Title: Method of making a back contacted solar cell

Abstract

Citation Formats

Emitter wrap-through solar cell conference, January 1993

Emitter wrap-through solar cell
conference, January 1993