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← ScienceWhich outcome arises when a semiconductor’s doping surpasses the Mott limit?
A)Insulator-metal transition occurs fundamentally✓
B)Increased reverse bias breakdown voltage
C)Enhanced piezoelectric output appears suddenly
D)Increased carrier mobility near depletion
💡 Explanation
An insulator-metal transition occurs because exceeding the Mott limit causes band overlap leading to delocalized electrons throughout, with conduction arising through band transport rather than hopping; therefore conductivity suddenly appears, rather than enhanced piezoelectric effects.
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