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Which consequence results when core electrons tunnel between orbitals in silicon nanocrystals?

A)Auger recombination increases rapidly
B)Photoluminescence becomes more structured
C)Bandgap energy exhibits blue-shift
D)Phonon scattering rate is reduced

💡 Explanation

Auger recombination increases because electron tunneling populates higher energy states, enhancing electron-hole interactions; the Auger effect then dominates. Silicon loses energy rather than photoluminescing, therefore, suppressing radiative decay processes, rather than structuring luminescence.

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