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← ScienceWhich phenomenon causes increased scattering in polycrystalline silicon?
A)Grain boundary electron deflection✓
B)Phonon-induced band structure damping
C)Intrinsic carrier concentration decrease
D)Increased silicon dioxide interface states
💡 Explanation
Grain boundary electron deflection occurs, because lattice discontinuities impede electron movement; therefore, scattering increases rather than decreasing carrier concentration or band damping at grain interfaces.
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