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Solution-processed organic light-emitting devices (OLEDs) still require improvements in their operational lifetime in order for them to become commercially viable. One factor that limits the lifetime of these devices is the instability of the hole injection layer (HIL). Therefore, understanding its degradation mechanism is crucial for the development of more stable solution-processed OLEDs. In this...
The lifetime of a phosphorescent organic light-emitting device (PhOLED) may range over several orders of magnitude depending on the choice of the phosphorescent emitter guest material and its concentration. This behavior, we find, results primarily from different rates of exicton–polaron-induced aggregation (EPIA) of the host material due to exciton–polaron interactions. We investigate the influence...
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