Photovoltaic devices
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United States of America Patent
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Jan 16, 2018
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N/A
app pub date -
Jun 21, 2013
filing date -
Jun 21, 2013
priority date (Note) -
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Abstract
A photovoltaic device is presented. The photovoltaic device includes a layer stack; and an absorber layer is disposed on the layer stack. The absorber layer includes cadmium, tellurium, and selenium. A semiconductor layer is further disposed on the absorber layer, wherein a valence band offset between the semiconductor layer and the absorber layer is less than about 1.3 electron Volts, and a band gap of the semiconductor layer is in a range from about 1.2 electron Volts to about 3.5 electron Volts.
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