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← ScienceWhich mechanism lowers the signal in avalanche photodiodes?
A)Dead space avalanche multiplication quenching✓
B)Direct bandgap recombination tunneling effects
C)Auger recombination depleting carrier effects
D)Indirect bandgap scattering photon absorption
💡 Explanation
Dead space avalanche multiplication quenching limits the voltage because, at high electric fields, charge carriers might not gain sufficient energy between ionization events to trigger a detectable avalanche; therefore, the signal is reduced, rather than amplified, as intended.
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