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← ScienceWhich mechanism causes silicon doping to alter semiconductor conductivity via electron availability?
A)Hybrid orbital construction influencing carrier density✓
B)Lattice vibration changes impeding electron flow
C)Band gap narrowing enhancing thermal activations
D)Surface state generation trapping additional charge
💡 Explanation
When silicon is doped, hybrid orbital construction occurs because dopant atoms introduce new energy levels which alter the electron and hole carrier density. This influences overall conductivity. Therefore, hybrid orbital contruction influencing carrier density correctly describes semiconductors, rather than lattice vibrations, gap alterations, or surface state changes under normal conditions.
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