Question

Write notes on led, photodiode and solar cell.

Answer 1

Led is a semiconductor device that emits visible light when current pass through it.
A photodiode is a semiconductor conductor that converts light into electric current.
A solar cell is a device that converts protons from sun into electricity

Answer 2

Notes on led, photodiode and solar cell:

LED, diode and solar cell are three very different equipments that are related to light and electricity, but all three of them are very different from each others work.

LED:

• LED, the "Light Emitting Diode" which produces light when certain amount of electrical signal is given to it. Therefore it is known as light emitting diode.

Photodiode:

• While the the photodiode is a converter equipment which changes the light energy into electrical signals and acts as a diode.

Solar cell:

• When light falls on it similar to the photodiode, the solar cell which again changes or converts the signals of light or energy from photons into energy of electricity.

To know more:

Difference between photodiode and photovoltaic cell

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Why is LED better option for testing the conduction of electricity?

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What is solar cell? Why and how is a solar cell application and panel prepared? list two limitations of these panels.

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