Efficient bipolar AIE emitters for high-performance nondoped OLEDs,Journal of Materials Chemistry C

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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 L_max, CE_max, PE_max, and EQE_max 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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