When the light increases, the reverse current in a photo-diode

Photo-Diode:

• A photodiode is a semiconductor p–n junction device that converts light into an electrical current
• The current is generated when photons are absorbed in the photodiode.
• The photodiode is a special type of diode which operates in reverse bias conditions.
• When the incident light on the photodiode increases, the reverse current in a photo-diode also increases.
• Diode current flows from n to p.
• Net current flowing is due to only minority charge carriers.
• The current flowing in the photodiode is due to diffusion current only.