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← ScienceWhich outcome occurs when a pulsed electric field causes dielectric breakdown in amorphous silicon?
A)Increased free carrier concentration✓
B)Reduced dielectric constant magnitude
C)Decreased electron-hole recombination
D)Enhanced interband optical absorption
💡 Explanation
Dielectric breakdown generates significantly increased free carrier concentration because the electric field enables impact ionization, triggering an avalanche multiplication of charge carriers. Therefore, conductivity rises, rather than decreased recombination or other effects under normal insulator conditions.
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