Triazatruxene-based small molecules with thermally activated delayed fluorescence, aggregation-induced emission and mechanochromic luminescence properties for solution-processable nondoped OLEDs

被引：57
|
作者：
Chen, Yonghong [1 ,2 ]
Wang, Shumeng [1 ]
Wu, Xiaofu [1 ]
Xu, Yuxiang [1 ,2 ,3 ]
Li, Hua [1 ,3 ]
Liu, Yang [1 ,3 ]
Tong, Hui [1 ,3 ]
Wang, Lixiang [1 ,3 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2018年 / 6卷 / 46期
基金：
中国国家自然科学基金;
关键词：
BLUE; AIE; EFFICIENCY; EMITTERS; TADF;
D O I：
10.1039/c8tc04721a
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two solution processable triazatruxene-based small molecules (TATC-BP and TATP-BP) with thermally activated delayed fluorescence (TADF), aggregation-induced emission (AIE), and mechanochromic luminescence (MCL) properties are synthesized and characterized. Compared with phenyl-substituted TATP-BP, TATC-BP with hexyl substituents showed a clearer MCL with a larger emission color change from 483 to 542 nm upon mechanical grinding. On the other hand, the solution processed nondoped OLED of TATP-BP showed a better EL performance with a maximal current efficiency of 18.9 cd A(-1), a maximum external quantum efficiency (EQE) of 6.0%, and a remarkable small roll-off of 3.3% in EQE even at a luminance of 1000 cd m(-2).
引用
收藏
页码：12503 / 12508
页数：6
相关论文
共 50 条
  • [31] A solution-processable near-infrared thermally activated delayed fluorescent dye with a fused aromatic acceptor and aggregation induced emission behavior
    Congrave, Daniel G.
    Drummond, Bluebell H.
    Gu, Qinying
    Montanaro, Stephanie
    Francis, Haydn
    Riesgo-Gonzalez, Victor
    Zeng, Weixuan
    Matthews, Campbell S. B.
    Dowland, Simon
    Wright, Iain A.
    Grey, Clare P.
    Friend, Richard H.
    Bronstein, Hugo
    JOURNAL OF MATERIALS CHEMISTRY C, 2022, 10 (12) : 4831 - 4836
  • [32] Solution-Processable Pure Green Thermally Activated Delayed Fluorescence Emitter Based on the Multiple Resonance Effect
    Ikeda, Naoya
    Oda, Susumu
    Matsumoto, Ryuji
    Yoshioka, Mayu
    Fukushima, Daisuke
    Yoshiura, Kazuki
    Yasuda, Nobuhiro
    Hatakeyama, Takuji
    ADVANCED MATERIALS, 2020, 32 (40)
  • [33] Aggregation-Induced Delayed Fluorescence Based on Donor/Acceptor-Tethered Janus Carborane Triads: Unique Photophysical Properties of Nondoped OLEDs
    Furue, Ryuhei
    Nishimoto, Takuro
    Park, In Seob
    Lee, Jiyoung
    Yasuda, Takuma
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (25) : 7171 - 7175
  • [34] Multifunctional asymmetric D-A-D′ compounds: Mechanochromic luminescence, thermally activated delayed fluorescence and aggregation enhanced emission
    Pashazadeh, Ramin
    Sych, Galyna
    Nasiri, Sohrab
    Leitonas, Karolis
    Lazauskas, Algirdas
    Volyniuk, Dmytro
    Skabara, Peter J.
    Grazulevicius, Juozas Vidas
    CHEMICAL ENGINEERING JOURNAL, 2020, 401
  • [35] Novel oxacalix[2]arene[2]triazines with thermally activated delayed fluorescence and aggregation-induced emission properties
    Wang, Yin-Feng
    Lu, Hai-Yan
    Shen, Yi-Fan
    Li, Meng
    Chen, Chuan-Feng
    CHEMICAL COMMUNICATIONS, 2019, 55 (64) : 9559 - 9562
  • [36] Self-Host Thermally Activated Delayed Fluorescence Material with Aggregation-Induced Emission Character: Multi-Functional Applications in OLEDs
    Dong, Ruizhi
    Li, Jiuyan
    Liu, Di
    Li, Deli
    Mei, Yongqiang
    Ma, Mengyao
    Jiang, Jingyang
    ADVANCED OPTICAL MATERIALS, 2021, 9 (24)
  • [37] Self-Host Blue Dendrimer Comprised of Thermally Activated Delayed Fluorescence Core and Bipolar Dendrons for Efficient Solution-Processable Nondoped Electroluminescence
    Ban, Xinxin
    Jiang, Wei
    Sun, Kaiyong
    Lin, Baoping
    Sun, Yueming
    ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (08) : 7339 - 7346
  • [38] Molecular engineering of dendritic luminogens with thermally activated delayed fluorescence and aggregation-induced emission characteristics for efficient solution-processed non-doped OLEDs
    Ma, Fulong
    Zhao, Xinxin
    Ji, Hefang
    Zhang, Dongdong
    Hasrat, Kamran
    Qi, Zhengjian
    JOURNAL OF MATERIALS CHEMISTRY C, 2020, 8 (35) : 12272 - 12283
  • [39] High-Efficiency Solution-Processable OLEDs by Employing Thermally Activated Delayed Fluorescence Emitters with Multiple Conversion Channels of Triplet Excitons
    Liu, Yuchao
    Hua, Lei
    Zhao, Zhennan
    Ying, Shian
    Ren, Zhongjie
    Yan, Shouke
    ADVANCED SCIENCE, 2021, 8 (18)
  • [40] Efficient Thermally Activated Delayed Fluorescence Materials with Aggregation-Induced Emission for Lipid Droplet Imaging
    Huang, Kaihang
    Yin, Li
    Jiang, Qingyun
    Wang, Qian
    Shi, Guang
    Xu, Bingjia
    CHINESE JOURNAL OF ORGANIC CHEMISTRY, 2024, 44 (08) : 2479 - 2486
12345