Multijunction Solar Cells with Group IV/III-V Hybrid Alloys for Terrestrial Applications
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United States of America Patent
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Issued Date -
Nov 11, 2010
app pub date -
May 8, 2009
filing date -
May 8, 2009
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Abandoned
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Abstract
A solar cell including a substrate; a first solar subcell composed of GeSiSn disposed over the substrate and having a first band gap; a second solar subcell composed of GaAs, InGaAsP, or InGaP and disposed over the first solar subcell having a second band gap greater than the first band gap and lattice matched to said first solar subcell; and a third solar subcell composed of GaInP and disposed over the second solar subcell having a third band gap greater than the second band gap and lattice matched with respect to the second subcell.
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