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← ScienceWhich consequence results when a quantum dot's oxide layer degrades?
A)Increased electron tunneling leakage current✓
B)Slower electron-phonon relaxation rate
C)Increased radiative recombination efficiency
D)Reduced quantum confinement energy level
💡 Explanation
Increased oxide defects enhance electron tunneling to the substrate, creating leakage current because of Fowler-Nordheim tunneling. Therefore, tunneling-related leakage rises, rather than enhanced recombination or relaxed energy, under these specific quantum-confined degraded conditions.
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