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Which outcome occurs when a quantum dot's passivating shell is decreased in thickness?

A)Increased probability of electron tunneling
B)Reduced quantum confinement effect
C)Enhanced Förster resonance energy transfer
D)Decreased radiative recombination lifetime

💡 Explanation

Decreasing oxide thickness increases **quantum tunneling** because a thinner barrier permits wavefunction penetration; therefore, electron transfer rates increase rather than being reduced via quantum confinement increase or affecting other processes without tunneling probability increases at thinner shell levels.

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