Which phenomenon causes a quantum-dot LED efficiency to decrease significantly at high drive currents?

💡 Explanation

When electrons and holes are driven excessively into quantum dots, Auger recombination becomes dominant because the electron-hole pair recombines, and give its energy to another electron or hole. Therefore non-radiative Auger process dominates, reducing light output rather than Förster, Stark, or polariton effects which happen under differing quantum conditions.

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