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← ScienceWhich consequence results when electron orbitals in a quantum dot are excited beyond their saturation limit?
A)Quantum tunneling barrier reduction
B)Increased electron-phonon coupling✓
C)Reduced Coulomb blockade effect
D)Enhanced Fermi level averaging
💡 Explanation
Exciting electron orbitals beyond saturation in a quantum dot will lead to increased electron-phonon coupling because the excess energy stimulates lattice vibrations via non-radiative transitions. Therefore, the coupling rises rather than tunneling reduction, because of dominant energy release mechanisms.
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