mohamedgamalabdellah mohamedgamalabdellah

19-05-2024
Engineering

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2. Why GaAs LEDs are more efficient than Crystalline silicon LEDS? (a) GaAs is a direct gap and silicon is an indirect gap material (b) Recombination events are correlated in GaAs. (c) electron injection efficiency is much higher in GaAs than that in silicon

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