[Solved] The recombination in indirect band-gap semiconductors is slow.

Q.	The recombination in indirect band-gap semiconductors is slow.
A.	true
B.	false
Answer» A. true
Explanation: in an indirect band-gap semiconductor, the maximum and minimum energies occur at different values of crystal momentum. however, three-particle recombination process is far less probable than the two-particle process exhibited by direct band-gap semiconductors. hence, the recombination in an indirect band-gap semiconductor is relatively slow.

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