In a GaAs DH LEDS the generated photons is mainly due to: Select one: A. Recombination of holes with electrons being injected to the n-regions B. Hole current injected into the p-region O C. Recombination of both electrons and holes being injected into the opposite region D. Recombination of electrons with holes being injected to the p-regions E. Non of the answers is true
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