OHMIC CONTACT BETWEEN THIN FILM SOLAR CELL AND CARBON-BASED TRANSPARENT ELECTRODE
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United States of America Patent
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Issued Date -
Dec 27, 2012
app pub date -
Jun 21, 2011
filing date -
Jun 21, 2011
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Abstract
A photovoltaic device and method include a photovoltaic stack having an N-doped layer, a P-doped layer and an intrinsic layer. A transparent electrode is formed on the photovoltaic stack and includes a carbon based layer and a high work function metal layer. The high work function metal layer is disposed at an interface between the carbon based layer and the P-doped layer such that the high work function metal layer forms a reduced barrier contact and is light transmissive.
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