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← TechnologyWhich failure develops in photodiodes operating near saturation?
A)Increased minority carrier injection
B)Reversed avalanche breakdown occurs
C)Kirk effect reduces response✓
D)Depletion layer remains stable
💡 Explanation
At high current densities, the *Kirk effect* modulates the base charge in the photodiode's junction. This is because high carrier concentration alters the electric field. Therefore, performance degrades, rather than the junction behaving as designed during optimal operating conditions.
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