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What is the process number of Schokley-Read-Hall Theory processes? Process-‘ The capture of an electron from the conduction band by an initially neutral empty trap’

What is the process number of Schokley-Read-Hall Theory processes? Process-‘ The capture of an electron from the conduction band by an initially neutral empty trap’ Correct Answer Process1

This is the first process of Schokley-Read-Hall theory of Recombination.

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At what condition, the rate of electron capture from the conduction band and the rate of the electron emission back into the conduction band must be equal?
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