How Does A Photodiode Work - What Is The Working Principle Of Photodiode?

Principle of Photodiode: It works on the principle of the photoelectric effect. The operating principle of the photodiode is such that when the junction of this two terminal semiconductor device is illuminated then the electric current starts flowing through it.

How does a photodiode work simple?

Photodiode Working A photodiode is subjected to photons in the form of light which affects the generation of electron-hole pairs. If the energy of the falling photons (hv) is greater than the energy gap (Eg) of the semiconductor material, electron-hole pairs are created near the depletion region of the diode.