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Which consequence results when interstitial copper atoms distort a silicon crystal lattice?

A)Decreased electron mobility
B)Increased thermal conductivity
C)Enhanced phonon propagation
D)Reduced radiative recombination

💡 Explanation

Decreased electron mobility occurs because lattice distortion due to copper atoms increases electron scattering via the deformation potential scattering mechanism, hindering free electron movement; therefore inhibiting conductivity rather than because defects enhance conductivity or affect thermal or radiative properties.

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