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Efficient bipolar AIE emitters for high-performance nondoped OLEDs
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2020-07-16 , DOI: 10.1039/d0tc02566f
Jiasen Zhang 1, 2, 3, 4, 5 , Yongqi Bai 1, 2, 3, 4 , Qiang Wei 1, 2, 3, 4 , Liang Cao 1, 2, 3, 4, 5 , Tao Wang 4, 5, 6, 7 , Ziyi Ge 1, 2, 3, 4, 8
Affiliation  

Three luminogens were designed and synthesized by integrating TPE with hole-transporting carbazole (Cz) and/or electron-transporting 1,2-diphenyl-1H-benzimidazole (PBi), and bare tetraphenylethene and another donor–acceptor (D–A) compound with aggregation-caused quenching (ACQ) were also prepared for comparison. In nondoped OLEDs, the best one with both aggregation-induced emission (AIE) properties and donor–acceptor (D–A) structures showed excellent performances with Lmax, CEmax, PEmax, and EQEmax of 24 308 cd m−2, and 15.10 cd A−1, 14.82 lm W−1, and 5.34%, respectively, which reached the theoretical limit of fluorescent OLEDs.

中文翻译:

适用于高性能非掺杂OLED的高效双极AIE发射器

通过将TPE与空穴传输的咔唑(Cz)和/或电子传输的1,2-二苯基-1 H-苯并咪唑(PBi)以及裸露的四苯基乙烯和另一种供体受体(D–A)集成在一起,设计并合成了三种发光剂。还准备了具有聚集引起的猝灭(ACQ)的化合物进行比较。在未掺杂的OLED中,具有聚集诱导发射(AIE)特性和施主-受主(D–A)结构的最佳OLED表现出优异的性能,其L max,CE max,PE max和EQE max为24308 cd m -2。和15.10光盘-1,14.82流明w ^ -1和分别达到5.34%的荧光OLED达到理论极限。
更新日期:2020-09-03
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