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← ScienceWhich risk increases when aromatic molecules in OLED displays degrade?
A)Reduced exciton formation efficiency✓
B)Increased electron-phonon coupling
C)Higher singlet-triplet energy splitting
D)Enhanced spin-orbit coupling
💡 Explanation
Aromatic molecule degradation means fewer intact pi-conjugated systems because it disrupts electron delocalization, harming orbital overlap due to diminished resonance stabilization. Therefore, exciton formation reduces, rather than increasing competing decay channels under standard low temperature conditions.
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