PHOTOSEMICONDUCTOR ELECTRODE, PHOTOELECTROCHEMICAL CELL, AND ENERGY SYSTEM
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United States of America Patent
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Aug 27, 2015
app pub date -
Oct 28, 2013
filing date -
Oct 31, 2012
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Abstract
A photosemiconductor electrode (400) of the present invention includes a conductor (410) and a photosemiconductor layer (first semiconductor layer) (420) provided on the conductor (410). The photosemiconductor layer (420) includes a photosemiconductor (e.g., a photosemiconductor film (421)) and an oxide containing iridium element (e.g., iridium oxide (422)). The Fermi level of the oxide containing iridium element is more negative than the Fermi level of the photosemiconductor and is more negative than −4.44 eV, with respect to the vacuum level.
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