Is the phenomenon of radiative recombination exclusive to direct-gap semiconductors? If yes, please explain why it cannot occur in indirect-gap semiconductors. If not, please explain how it can occur in indirect gap semiconductors if it can.
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Is the phenomenon of radiative recombination exclusive to direct-gap semiconductors? If yes, please explain why it cannot occur in indirect-gap semiconductors. If not, please explain how it can occur in indirect gap semiconductors if it can.
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