Current-matched high-efficiency, multijunction monolithic solar cells

Title: Current-matched high-efficiency, multijunction monolithic solar cells

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Abstract

The efficiency of a two-junction (cascade) tandem photovoltaic device is improved by adjusting (decreasing) the top cell thickness to achieve current matching. An example of the invention was fabricated out of Ga.sub.0.52 In.sub.0.48 P and GaAs. Additional lattice-matched systems to which the invention pertains include Al.sub.x Ga.sub.1-x /GaAS (x= 0.3-0.4), GaAs/Ge and Ga.sub.y In.sub.l-y P/Ga.sub.y+0.5 In.sub.0.5-y As (0<5).

Inventors:

Olson, Jerry M ^[1]; Kurtz, Sarah R ^[2]

Lakewood, CO
Golden, CO

Issue Date:: 1993-01-01

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

OSTI Identifier:: 868827

Patent Number(s):: 5223043

Assignee:: United States of America as represented by United States (Washington, DC)

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
H01L31/0687 - Multiple junction or tandem 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
Y02E10/544 - Solar cells from Group III-V materials

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DOE Contract Number:: AC02-83CHI0093

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: current-matched; high-efficiency; multijunction; monolithic; solar; cells; efficiency; two-junction; cascade; tandem; photovoltaic; device; improved; adjusting; decreasing; top; cell; thickness; achieve; current; matching; example; fabricated; 52; 48; gaas; additional; lattice-matched; systems; pertains; 1-x; 3-0; l-y; 5-y; cell thickness; solar cell; solar cells; photovoltaic device; tandem photovoltaic; monolithic solar; top cell; /136/

Citation Formats


                    Olson, Jerry M, and Kurtz, Sarah R. Current-matched high-efficiency, multijunction monolithic solar cells.  United States: N. p., 1993. 
        Web.

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                    Olson, Jerry M, & Kurtz, Sarah R. Current-matched high-efficiency, multijunction monolithic solar cells.  United States.

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                    Olson, Jerry M, and Kurtz, Sarah R. Fri .  
        "Current-matched high-efficiency, multijunction monolithic solar cells".  United States.  https://www.osti.gov/servlets/purl/868827.

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@article{osti_868827,

  title        = {Current-matched high-efficiency, multijunction monolithic solar cells},

  author       = {Olson, Jerry M and Kurtz, Sarah R},

  abstractNote = {The efficiency of a two-junction (cascade) tandem photovoltaic device is improved by adjusting (decreasing) the top cell thickness to achieve current matching. An example of the invention was fabricated out of Ga.sub.0.52 In.sub.0.48 P and GaAs. Additional lattice-matched systems to which the invention pertains include Al.sub.x Ga.sub.1-x /GaAS (x= 0.3-0.4), GaAs/Ge and Ga.sub.y In.sub.l-y P/Ga.sub.y+0.5 In.sub.0.5-y As (0<5).},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1993},

  month        = {1}

}

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