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What is the difference between LEDs and PN junction diode?
Led is made of compound elements i.e combination of two elements like GaAs,Gaph etc..the light emission is due to transmission of electrons.
It is also a PN junction diode.
A elementary compound can never act as a LED like SI, GE.
It is also a PN junction diode.
A elementary compound can never act as a LED like SI, GE.