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← TechnologyWhich light emission change occurs when LED current exceeds rated capacity?
A)Decreased quantum efficiency results✓
B)Increased spectral bandwidth occurs
C)Uniform spectral shift happens
D)Enhanced carrier recombination happens
💡 Explanation
Exceeding the rated current induces increased non-radiative recombination via Auger recombination, because the **Auger effect** causes electron-hole pairs to recombine without emitting photons; therefore, quantum efficiency decreases, rather than enhancing useful light output or shifting the spectrum.
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