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Which electrical outcome results when localized defects distort a p-type semiconductor's energy bands?

A)Lowered open-circuit voltage occurs
B)Increased thermal runaway susceptibility
C)Accelerated minority carrier recombination
D)Enhanced majority carrier mobility

💡 Explanation

The open-circuit voltage drops via band bending near the defect which causes Shockley-Read-Hall (SRH) recombination. Because the defects act as stepping stones for electrons to recombine with holes, the voltage is suppressed; therefore, SRH recombination rather than increased mobility occurs.

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