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← ScienceWhich outcome occurs when a silicon crystal contains excessive boron?
A)Increased free electron concentration
B)Increased hole carrier concentration✓
C)Reduced lattice vibrational distortion
D)Enhanced radiative recombination lifetime
💡 Explanation
Introducing boron into silicon leads to increased hole carrier concentration due to the doping process. Boron acts as an acceptor, creating holes. Therefore, hole concentration increases rather than electron concentration because boron accepts electrons to complete covalent bonds.
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