Measurement Technique Sheds New Light on Semiconductors for Solar Fuels (IMAGE)
Caption
A semitransparent gold Kelvin probe measures the photovoltage of an illuminated semiconductor film in contact with an electrode and a water solution. The photovoltage can be positive or negative, depending on the direction of charge transport.
Credit
Image courtesy of Frank Osterloh, University of California, Davis
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Image courtesy of Frank Osterloh, University of California, Davis
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