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Which outcome results when surface oxidation on a quantum dot increases its surface state density?

A)Decreased quantum yield via Auger recombination
B)Enhanced Förster resonance energy transfer
C)Increased electron-phonon scattering rates
D)Suppression of band-edge photoluminescence

💡 Explanation

Auger recombination increases following oxidation because surface states trap carriers and promote NON-RADIATIVE ENERGY TRANSFER between carriers therefore lowering quantum yield rather than enhancing it, because pathways compete and shunt desired light emission

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