Hyperbranched polymers with aggregation-induced emission property for solution-processed white organic light-emitting diodes

被引：9

作者：

Wu, Dongyu ^{[1
,2
]}

Zhang, Tiaomei ^{[1
,2
]}

Sun, Jing ^{[1
,2
]}

Wu, Yuling ^{[1
,2
]}

Liao, Xiaoqing ^{[3
]}

Lu, Guojing ^{[1
,2
]}

Yang, Jingjing ^{[1
,2
]}

Wang, Hua ^{[1
,2
]}

Li, Lu ^{[3
]}

Xu, Bingshe ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Minist Educ, Key Lab Interface Sci & Engn Adv Mat, Taiyuan 030024, Shanxi, Peoples R China

[2] Taiyuan Univ Technol, Res Ctr Adv Mat Sci & Technol, Taiyuan 030024, Shanxi, Peoples R China

[3] Chongqing Univ Arts & Sci, Res Inst New Mat & Technol, Coinnovat Ctr Micro Nano Optoelect Mat & Devices, Chongqing 402160, Peoples R China

来源：

TETRAHEDRON | 2018年 / 74卷 / 50期

关键词：

White-light; OLED; Aggregation-induced emission; Hyperbranched polymers; HIGHLY EFFICIENT; IRIDIUM(III) COMPLEXES; SINGLE POLYMER; POLYFLUORENE; DEVICES; LAYER; BLUE; EMITTERS; GREEN; ELECTROLUMINESCENCE;

D O I：

10.1016/j.tet.2018.10.057

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

In this work, a new series of hyperbranched polymers of PFTPE-Ir(piq)(3)-X(X = 1, 5,10) were designed and synthesized, in which tris(1-phenylisoquinoline)iridium(III) (Ir(piq)(3)) acts as red emission core and PFTPE acts as branches. The photophysical study reveals that these hyperbranched polymers exhibit aggregation-induced emission (AIE) characteristic, inducing in much higher photoluminescent quantum yield (Phi(Y)) in neat film than that in dilute tetrahydrofuran (THF) solution. The white-light OLEDs using PFTPE-Ir(piq)(3)-X as emission layer show rather weaker efficiency roll-off. Especially, the white-light OLED based on PFTPE-Ir(piq)(3)-5 as emission layer shows a maximum luminance of 4686 cd/m(2), a maximum luminous efficiency of 2.43 cd/A, a maximum external quantum efficiency of 1.08% and the Commission Internationale de l'Eclairage coordinate of (0.26, 0.36). (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：7218 / 7227

页数：10

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