FLEXIBLE SOLAR CELLS COMPRISING THICK AND THIN ABSORBER REGIONS
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United States of America Patent
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Mar 24, 2016
app pub date -
Sep 24, 2014
filing date -
Sep 24, 2014
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A solar cell includes a p-type semiconductor substrate including a plurality of thin absorption regions and a plurality of thick absorption regions. The plurality of thin absorption regions and the plurality of thick absorption regions are coplanar on a bottom side thereof. An n-type semiconductor layer is disposed over a top side of the p-type semiconductor substrate. The n-type semiconductor layer has a substantially uniform thickness. Metallurgy is disposed on top of the n-type semiconductor layer. The plurality of thin absorption regions are sufficiently thin to render the semiconductor substrate flexible.
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