40% efficient metamorphic GaInPGaInAsGe multijunction solar cells

R. R. King; D. C. Law; K. M. Edmondson; C. M. Fetzer; G. S. Kinsey; H. Yoon; R. A. Sherif; N. H. Karam

doi:10.1063/1.2734507

40% efficient metamorphic GaInPGaInAsGe multijunction solar cells

R. R. King, D. C. Law, K. M. Edmondson, C. M. Fetzer, G. S. Kinsey, H. Yoon, R. A. Sherif, N. H. Karam

Research output: Contribution to journal › Article › peer-review

1120 Scopus citations

Abstract

An efficiency of 40.7% was measured and independently confirmed for a metamorphic three-junction GaInPGaInAsGe cell under the standard spectrum for terrestrial concentrator solar cells at 240 suns (24.0 W cm2, AM1.5D, low aerosol optical depth, 25 °C). This is the initial demonstration of a solar cell with over 40% efficiency, and is the highest solar conversion efficiency yet achieved for any type of photovoltaic device. Lattice-matched concentrator cells have now reached 40.1% efficiency. Electron-hole recombination mechanisms are analyzed in metamorphic Gax In1-x As and Gax In1-x P materials, and fundamental power losses are quantified to identify paths to still higher efficiencies.

Original language	English (US)
Article number	183516
Journal	Applied Physics Letters
Volume	90
Issue number	18
DOIs	https://doi.org/10.1063/1.2734507
State	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2734507

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@article{e9b9ab9c6062417799a4515f04b0c527,

title = "40% efficient metamorphic GaInPGaInAsGe multijunction solar cells",

abstract = "An efficiency of 40.7% was measured and independently confirmed for a metamorphic three-junction GaInPGaInAsGe cell under the standard spectrum for terrestrial concentrator solar cells at 240 suns (24.0 W cm2, AM1.5D, low aerosol optical depth, 25 °C). This is the initial demonstration of a solar cell with over 40% efficiency, and is the highest solar conversion efficiency yet achieved for any type of photovoltaic device. Lattice-matched concentrator cells have now reached 40.1% efficiency. Electron-hole recombination mechanisms are analyzed in metamorphic Gax In1-x As and Gax In1-x P materials, and fundamental power losses are quantified to identify paths to still higher efficiencies.",

author = "King, {R. R.} and Law, {D. C.} and Edmondson, {K. M.} and Fetzer, {C. M.} and Kinsey, {G. S.} and H. Yoon and Sherif, {R. A.} and Karam, {N. H.}",

note = "Funding Information: The authors would like to thank Robert McConnell, Martha Symko-Davies, Fannie Posey-Eddy, Keith Emery, James Kiehl, Tom Moriarty, Manuel Romero, and the entire multijunction solar cell team at Spectrolab. This work was supported in part by the NREL High Performance PV program (ZAT-4-33624-12), and by Spectrolab, Inc. ",

year = "2007",

doi = "10.1063/1.2734507",

language = "English (US)",

volume = "90",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "18",

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T1 - 40% efficient metamorphic GaInPGaInAsGe multijunction solar cells

AU - King, R. R.

AU - Law, D. C.

AU - Edmondson, K. M.

AU - Fetzer, C. M.

AU - Kinsey, G. S.

AU - Yoon, H.

AU - Sherif, R. A.

AU - Karam, N. H.

N1 - Funding Information: The authors would like to thank Robert McConnell, Martha Symko-Davies, Fannie Posey-Eddy, Keith Emery, James Kiehl, Tom Moriarty, Manuel Romero, and the entire multijunction solar cell team at Spectrolab. This work was supported in part by the NREL High Performance PV program (ZAT-4-33624-12), and by Spectrolab, Inc.

PY - 2007

Y1 - 2007

N2 - An efficiency of 40.7% was measured and independently confirmed for a metamorphic three-junction GaInPGaInAsGe cell under the standard spectrum for terrestrial concentrator solar cells at 240 suns (24.0 W cm2, AM1.5D, low aerosol optical depth, 25 °C). This is the initial demonstration of a solar cell with over 40% efficiency, and is the highest solar conversion efficiency yet achieved for any type of photovoltaic device. Lattice-matched concentrator cells have now reached 40.1% efficiency. Electron-hole recombination mechanisms are analyzed in metamorphic Gax In1-x As and Gax In1-x P materials, and fundamental power losses are quantified to identify paths to still higher efficiencies.

AB - An efficiency of 40.7% was measured and independently confirmed for a metamorphic three-junction GaInPGaInAsGe cell under the standard spectrum for terrestrial concentrator solar cells at 240 suns (24.0 W cm2, AM1.5D, low aerosol optical depth, 25 °C). This is the initial demonstration of a solar cell with over 40% efficiency, and is the highest solar conversion efficiency yet achieved for any type of photovoltaic device. Lattice-matched concentrator cells have now reached 40.1% efficiency. Electron-hole recombination mechanisms are analyzed in metamorphic Gax In1-x As and Gax In1-x P materials, and fundamental power losses are quantified to identify paths to still higher efficiencies.

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JF - Applied Physics Letters

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ER -

40% efficient metamorphic GaInPGaInAsGe multijunction solar cells

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ASJC Scopus subject areas

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