Photodiodes are semiconductor light sensors that generate a current or voltage when the P-N junction in the semiconductor is illuminated by light. The team photodiode can be broadly defined to include even solar batteries, but it usually refers to sensors used to detect the intensity of light.
Photodiode type is as below:
-- PN photodiode
-- PIN photodiode
-- Schottky type photodiode
-- APD (Avalanche photodiode)
All these types provide the following features and are widely for the detection of the intensity, position, color and presence of light.
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