40% efficient metamorphic GaInPGaInAsGe multijunction solar cells

Richard 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 journalArticle

937 Citations (Scopus)

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 languageEnglish (US)
Article number183516
JournalApplied Physics Letters
Volume90
Issue number18
DOIs
StatePublished - 2007
Externally publishedYes

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solar cells
concentrators
power loss
cells
optical thickness
aerosols

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

King, R., Law, D. C., Edmondson, K. M., Fetzer, C. M., Kinsey, G. S., Yoon, H., ... Karam, N. H. (2007). 40% efficient metamorphic GaInPGaInAsGe multijunction solar cells. Applied Physics Letters, 90(18), [183516]. https://doi.org/10.1063/1.2734507

40% efficient metamorphic GaInPGaInAsGe multijunction solar cells. / King, Richard; Law, D. C.; Edmondson, K. M.; Fetzer, C. M.; Kinsey, G. S.; Yoon, H.; Sherif, R. A.; Karam, N. H.

In: Applied Physics Letters, Vol. 90, No. 18, 183516, 2007.

Research output: Contribution to journalArticle

King, R, Law, DC, Edmondson, KM, Fetzer, CM, Kinsey, GS, Yoon, H, Sherif, RA & Karam, NH 2007, '40% efficient metamorphic GaInPGaInAsGe multijunction solar cells', Applied Physics Letters, vol. 90, no. 18, 183516. https://doi.org/10.1063/1.2734507
King R, Law DC, Edmondson KM, Fetzer CM, Kinsey GS, Yoon H et al. 40% efficient metamorphic GaInPGaInAsGe multijunction solar cells. Applied Physics Letters. 2007;90(18). 183516. https://doi.org/10.1063/1.2734507
King, Richard ; Law, D. C. ; Edmondson, K. M. ; Fetzer, C. M. ; Kinsey, G. S. ; Yoon, H. ; Sherif, R. A. ; Karam, N. H. / 40% efficient metamorphic GaInPGaInAsGe multijunction solar cells. In: Applied Physics Letters. 2007 ; Vol. 90, No. 18.
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