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← TechnologyWhich mechanism primarily enhances LED efficiency in microdisplays?
A)Surface plasmon resonance coupling✓
B)Quantum tunneling enhancement barrier
C)Impact ionization gain
D)Avalanche multiplication generation
💡 Explanation
Surface plasmon resonance (SPR) enhances light extraction because it allows coupling of guided light modes within the LED to external radiation more efficiently. Therefore, light output increases rather than internal losses limiting efficiency.
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