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← ScienceWhich consequence results when a quantum dot's barrier narrows?
A)Increased electron wavefunction overlap✓
B)Decreased Coulomb blockade effect
C)Enhanced photon emission rate
D)Reduced quantum yield from dot
💡 Explanation
Increased wavefunction overlap occurs because quantum tunneling allows electrons to penetrate the narrowed potential barrier. Therefore, electrons tunnel more readily, and wavefunctions overlap increases, rather than reduced tunneling due to a widening barrier.
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