COMPOUND SEMICONDUCTOR SOLAR CELLS AND METHODS OF FABRICATING THE SAME
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United States of America Patent
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Issued Date -
Jul 26, 2012
app pub date -
Jan 7, 2010
filing date -
Oct 12, 2009
priority date (Note) -
Abandoned
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Abstract
Provided is a tandem-type compound semiconductor solar cell. The solar cell includes a transparent substrate and a plurality of solar cell layers provided on at least one surface of the transparent substrate. The plurality of solar cell layers respectively includes window layer and light absorbing layer. The light absorbing layer includes Cu(InGa)Se2 (CIGS) nanoparticles and the light absorbing layers included in the plurality of solar cell layers have different bandgaps due to different gallium (Ga) contents.
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