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← ScienceWhich consequence occurs when quenching electron tunneling pathways within quantum dots?
A)Increased electron-hole recombination rates
B)Enhanced quantum confinement strength
C)Reduced material band gap energy
D)Decreased radiative emission intensity✓
💡 Explanation
Suppressed tunneling impacts electron wavefunction delocalization and consequently reduces exciton radiative recombination via Fermi's Golden Rule, because quenching alters dipole matrix elements; therefore, decreased emission emerges, rather than promoting other processes without pathway availability.
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