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← ScienceWhich outcome increases within a quantum dot laser when the electron well dimension approaches the exciton Bohr radius?
A)Increased Auger recombination losses✓
B)Enhanced electron-phonon interactions
C)Suppressed lasing quantum efficiency
D)Reduced optical gain broadening
💡 Explanation
Increased Auger recombination losses occur because the quantum confinement enhances electron-electron interactions via Coulomb interaction. This promotes non-radiative transitions, therefore increasing losses and decreasing laser efficiency, rather than enhancing the laser's radiative properties or suppressing others.
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