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Which consequence results when increased doping modifies gallium arsenide's energy bands?

A)Metallic conductivity supplants semiconduction
B)Increased intrinsic carrier concentration emerges
C)Excitation generates electron-hole plasma
D)Phonon limited mobility is mitigated

💡 Explanation

Metallic conductivity supplants semiconduction because increased doping significantly reduces the band gap via band-bending effects. Therefore, the semiconductor transitions into exhibiting metallic conductive properties rather than remaining semiconducting, limiting intrinsic conductivity or alternative high energy behaviours.

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