Cathode-driven or assisted solar cell
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United States of America Patent
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Aug 15, 2017
Grant Date -
Aug 21, 2014
app pub date -
Mar 28, 2012
filing date -
Mar 28, 2011
priority date (Note) -
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Abstract
In one form, a photoelectrochemical cell comprising a p-type sensitized photocathode including a sensitizer dye and a water-based electrolyte. In another form, the sensitizer dye and an adjacent semiconductor may have a reduction potential that is sufficiently high to either reduce a desired chemical feedstock in the cell or reduce protons in the water to hydrogen gas. The semiconductor to which the sensitizer dye is affixed may be nickel oxide. The photoelectrochemical cell can include a sensitized photocathode and an electrolyte that contains an electron acceptor, where light illumination of the sensitized photocathode results in reduction of the electron acceptor. The electrolyte can include water.
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