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← ScienceWhich consequence results when quenching molecular orbitals in OLEDs?
A)Increased singlet exciton formation rate
B)Reduced quantum efficiency overall output✓
C)Enhanced phosphorescence emission efficacy
D)Greater operational energy effectiveness observed
💡 Explanation
Reduced quantum efficiency results because quenching orbitals deactivates excited states by non-radiative decay; a process known as intersystem crossing. Therefore output is lessened rathen than phosphorescent increase or greater operational effectiveness.
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