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← ScienceWhich mechanism causes reduced light emission when adding impurities within an LED's band gap?
A)Increased Auger recombination probability✓
B)Enhanced Förster resonance energy transfer
C)Decreased Dexter energy transfer
D)Reduced radiative efficiency bottlenecking
💡 Explanation
Introducing impurities creates defect states, therefore increasing the likelihood of non-radiative Auger recombination because energy is dissipated as heat rather than photons; rather than radiative recombination which emits light.
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