Physics, asked by manindersinghkg3, 6 months ago

Why do not Leds start to glow immediately when you provide forward

bias to it?

Answers

Answered by Anonymous

4

LEDs operate only in forward bias condition. When light emitting diode is reverse biased, the free electrons (majority carriers) from n-side and holes (majority carriers) from p-side moves away from the junction. As a result, the width of depletion region increases and no recombination of charge carriers occur.

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