Article with buffer layer
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United States of America Patent
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Jun 2, 2020
Grant Date -
Sep 15, 2016
app pub date -
Dec 9, 2015
filing date -
Mar 12, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An article, for example a solar cell, includes a first substrate having a first surface and a second surface. An underlayer is located over the second surface. A first conductive layer is located over the underlayer. An overlayer is located over the first conductive layer. A semiconductor layer is located over the conductive oxide layer. A second conductive layer is located over the semiconductor layer. The first conductive layer can include a conductive oxide and at least one dopant selected from the group consisting of tungsten, molybdenum, niobium, and/or fluorine. The overlayer can include a buffer layer having tin oxide and at least one of zinc, indium, gallium, and magnesium.
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