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← ScienceWhich 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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