Outrageously Funny Word Dictionary :: Photocathode

👉 A photocathode is a type of cathode that is used in photovoltaic cells. It consists of a semiconductor material, such as silicon or gallium nitride, which has an electron-hole pair between its conduction and valence bands. When light passes through the photocathode, it is absorbed by the semiconductor material, causing an electric current to flow through the cathode. This process allows electricity to be produced from sunlight.

photocathode