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Which outcome results when high doping alters the band structure?

A)Mott transition to metallic conduction
B)Increased intrinsic breakdown voltage
C)Enhanced piezoelectric polarization
D)Decreased thermionic emission current

💡 Explanation

A high dopant concentration causes a transition to metallic conduction because band overlap creates a continuous band, hence eliminating the band gap via the mechanism *Mott transition*; therefore conduction increases rather than remaining semiconducting.

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