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1Degradation Mechanisms in Blue Organic Light-Emitting Diodes显示文摘An organic light-emitting diode(OLED)is required to exhibit long-time operation without degradation as an inorganic LED.Sufficiently long operation time has been demonstrated for green-and red-emitting OLEDs.However,a blue device that is important for full-color display and lighting exhibits a much shorter operational lifetime than the other color devices.The short lifetime is mainly attributed to the molecular dissociation and the defects and radical species formation through various unimolecular and bimolecular processes,including direct photolysis,exciton–exciton interaction,and exciton–polaron interaction,and so on.Dan Wang Cong Cheng Taiju Tsuboi Qisheng Zhang 2020CCS Chemistry2020,2,4:1
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