Which risk increases when an organic light-emitting diode (OLED) ages?

💡 Explanation

Excitation energy traps increase because oxidative degradation modifies the molecular orbitals and creates defects via exciton quenching; therefore the emission efficiency drops, because these traps steal excitons rather than allowing light emission.

• Which risk increases significantly when submarine fiber optic cables experience microbends?
• Which outcome occurs when a geothermal plant turbine's inlet steam contains excessive liquid water?
• Which consequence occurs to transformer core magnetic domains cycling near saturation?
• Which limitation arises when an uncorrected pulsed laser heats a Bragg grating?
• Which outcome occurs when neutron moderation degrades inside a CANDU reactor core?
• Which risk increases during control rod ejection in a pressurized water reactor?