EPITAXIAL SILICON SOLAR CELLS WITH MOISTURE BARRIER
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United States of America Patent
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Apr 2, 2015
app pub date -
Sep 27, 2013
filing date -
Sep 27, 2013
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Abstract
A thin epitaxial silicon solar cell includes one or more layers of doped oxides on the backside. A silicon nitride layer that serves as a moisture barrier is formed on the one or more layers of doped oxides. The doped oxides provide dopants for forming doped regions in an epitaxial silicon layer. Metal contacts are electrically coupled to the doped regions through the silicon nitride layer and the one or more layers of doped oxides.
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