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← ScienceWhich mechanism limits energy transfer efficiency in organic LEDs?
A)Förster resonance energy transfer✓
B)Stark broadening
C)Debye relaxation
D)Raman scattering
💡 Explanation
Energy transfer is limited by the specific **Förster resonance energy transfer** rate between organic molecule orbitals. This mechanism is distance-dependent because the overlap integral decreases rapidly, therefore emission quenching occurs in some OLEDs rather than uniformly, under ideal geometry.
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