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Which 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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