HIGH-EFFICIENCY PHOTOVOLTAIC BACK-CONTACT SOLAR CELL STRUCTURES AND MANUFACTURING METHODS USING THREE-DIMENSIONAL SEMICONDUCTOR ABSORBERS
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Dec 9, 2010
filing date -
Dec 9, 2009
priority date (Note) -
Abandoned
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Abstract
Back contact back junction three dimensional solar cell and methods for manufacturing are provided. The back contact back contact back junction three dimensional solar cell comprises a three-dimensional substrate. The substrate comprises a light capturing frontside surface with a passivation layer, a doped base region, and a doped backside emitter region with a polarity opposite the doped base region. A backside passivation layer is positioned on the doped backside emitter region. Backside emitter contacts and backside base contacts connected to metal interconnects and selectively formed on three-dimensional features of the backside of three-dimensional solar cell.
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