SOLAR CELL WITH REAR SIDE MULTI-LAYER ANTI-REFLECTION COATING
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United States of America Patent
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Issued Date -
Sep 29, 2016
app pub date -
Jan 19, 2016
filing date -
Mar 26, 2015
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Abstract
A solar cell includes a semiconductor substrate with a first surface and a second surface, a doped emitter layer on the first surface, at least one front anti-reflection coating (ARC) on the first surface, a front electrode on the front ARC, a passivation layer on the second surface, a first rear ARC on the passivation layer, a second rear ARC on the first rear ARC, a third rear ARC on the second rear ARC, and a rear electrode on the third rear ARC. The first rear ARC has a refractive index that is smaller than 2.1, while the second rear ARC has a refractive index that is greater than or equal to 2.1. The second rear ARC has a refractive index that is greater than that of the third rear ARC.
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