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Which spectral consequence results when electrons tunnel through a quantum dot?

A)Fluorescence emission exhibits spectral broadening
B)Resonance shift to higher frequencies
C)Increased absorption spectral intensity
D)Phosphorescence lifetimes greatly extend

💡 Explanation

Fluorescence experiences spectral broadening because quantum tunneling affects energy levels, invoking the Heisenberg uncertainty principle, leading to uncertainty in emitted photon energies. Energy level broadening occurs, therefore resulting in broadened emission, rather than defined peaks under other mechanisms.

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