Question

what's a photodiode and explain its working​

Answer 1

Answer:

A photodiode is a semiconductor device that converts light into an electrical current. The current is generated when photons are absorbed in the photodiode. Photodiodes may contain optical filters, built-in lenses, and may have large or small surface areas.

The working principle of a photodiode is, when a photon of ample energy strikes the diode, it makes a couple of an electron-hole. ... Therefore, holes in the region move toward the anode, and electrons move toward the cathode, and a photocurrent will be generated.

Explanation:

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Answer 2

Answer:

A photodiode is a semiconductor device that converts light into an electrical current.

Explanation:

Working of Photodiode

Working of PhotodiodeThe working principle of a photodiode is, when a photon of ample energy strikes the diode, it makes a couple of an electron-hole. ... Therefore, holes in the region move toward the anode, and electrons move toward the cathode, and a photocurrent will be generated.