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← ScienceWhich outcome occurs when electron orbitals overlap in semiconductor nanocrystals?
A)Quantum confinement effect enhancement✓
B)Auger recombination dominates emission
C)Phonon bottleneck reduces cooling
D)Surface trap states decrease significantly
💡 Explanation
Overlapping orbitals increase electron delocalization; size decreases, energy increases, and spatial quantum confinement gets stronger because the electron's wavelength becomes more confined. Therefore confinement enhances, rather than recombination dominating because the particle in a box scales smaller.
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