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← ScienceWhich 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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