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Phenothiazine dioxide based high triplet energy host materials for blue phosphorescent organic light-emitting diodes

机译:用于蓝色磷光有机发光二极管的二氧化吩噻嗪基高三重态能量主体材料

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摘要

Donor-acceptor type high triplet energy host materials were derived from a phenothiazine dioxide based electron transport moiety and a carbazole based hole transport moiety. Three phenothiazine dioxide type materials, 1'-(3,5-di(9H-carbazol-9-yl) phenyl)-10H-phenothiazine 5,5-dioxide (DCzPO), 10-(3',5'-di(9H-carbazol- 9-yl)-[1,1'-biphenyl]-3-yl)-1'H-phenothiazine 5,5-dioxide (DCzmPPO), and 10-(3',5'-di(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-1'-H-phenothiazine 5,5-dioxide (DCzpPPO), could transport both holes and electrons effectively and showed high triplet energy for use in blue phosphorescent organic light-emitting diodes. Device optimization of the DCzPO, DCzmPPO, and DCzpPPO host based blue devices could realize high EQE of 24.3%.
机译:供体-受体型高三重态能量主体材料衍生自二氧化吩噻嗪基电子传输部分和咔唑基空穴传输部分。三种二氧化吩噻嗪类材料,1'-(3,5-二(9H-咔唑-9-苯基)苯基)-10H-吩噻嗪5,5-二氧化物(DCzPO),10-(3',5'-di( 9H-咔唑-9-基)-[1,1'-联苯] -3-基)-1'H-吩噻嗪5,5-二氧化物(DCzmPPO)和10-(3',5'-di(9H -carbazol-9-yl)-[1,1'-biphenyl] -4-yl)-1'-H-吩噻嗪5,5-二氧化物(DCzpPPO)能有效地传输空穴和电子,并显示出高的三重态能量。用于蓝色磷光有机发光二极管。基于DCzPO,DCzmPPO和DCzpPPO主机的蓝色设备的设备优化可以实现24.3%的高EQE。

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