When light hits the system, an electrical potential builds up. The metal oxide layer acts as a photo anode and is the site of oxygen formation. It is connected to the solar cell by way of a conducting bridge made of graphite (black). Since only the metal oxide layer is in contact with the electrolyte, the silicon solar cell remains safe from corrosion. A platinum spiral serves as the cathode where hydrogen is formed.

Image Credit : TU Delf.

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1 Comment so far

  1. Naresh on June 8, 2015 6:30 AM

    Different testing methods for bismuth vanadate pigments along with their testing standards and also their uses in road marking.

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