Working Principle of Light Emitting Diode

This page is about working principle of light emitting diode. It describes how a pn junction diode emits light when it is doped with particular elements.

Light Emitting Diode (LED) - Working, Construction and Symbol - Diode

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LED or Light Emitting Diode - Pin Diagram, Construction, Working

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How do diodes and light-emitting diodes (LEDs) work?

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LED or Light Emitting Diode - Pin Diagram, Construction, Working

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Light Emitting Diode (LED) - Working, Construction and Symbol - Diode