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← ScienceWhich outcome occurs when an aluminum semiconductor's doping concentration grows past threshold?
A)Decreased efficiency of surface deposition
B)Increased quantum tunneling conductivity✓
C)Substantial photovoltaic potential reduction
D)Augmented sensitivity of magnetic hysteresis
💡 Explanation
Increased doping promotes band bending and lowers the barrier width; therefore, larger dopant concentration across thin junctions leads to substantial growth in total *quantum tunneling* probability, because electrons can directly tunnel through what would otherwise be barrier, rather than follow drift-diffusion currents.
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