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← TechnologyWithin an LED display under thermal stress, which outcome occurs due to decreased quantum efficiency?
A)Increased forward voltage requirement
B)Reduced light output (lumen depreciation)✓
C)Greater reverse recovery time
D)Higher dominant wavelength emission
💡 Explanation
Reduced quantum efficiency in LEDs experiencing heat leads to decreased radiative recombination events because fewer electron-hole pairs emit photons; therefore, luminous flux diminishes rapidly, rather than shifting the emission wavelength or impacting electrical recovery times.
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