Highly efficient electroluminescence from a solution-processable thermally activated delayed fluorescence emitter

被引：71
|
作者：
Wada, Yoshimasa [1 ]
Shizu, Katsuyuki [1 ,2 ]
Kubo, Shosei [1 ]
Suzuki, Katsuaki [1 ]
Tanaka, Hiroyuki [2 ]
Adachi, Chihaya [2 ,3 ]
Kaji, Hironori [1 ]
机构：
[1] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan
[2] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, Fukuoka 8190395, Japan
[3] Japan Sci & Technol Agcy, ERATO, Adachi Mol Exciton Engn Project, Fukuoka 8190395, Japan
来源：
APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 18期
基金：
日本学术振兴会;
关键词：
DIODES;
D O I：
10.1063/1.4935237
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We developed a thermally activated delayed fluorescence (TADF) emitter, 2,4,6-tris(4-(9,9-dimethylacridan-10-yl)phenyl)-1,3,5-triazine (3ACR-TRZ), suitable for use in solution-processed organic light-emitting diodes (OLEDs). When doped into 4,4'-bis(carbazol-9-yl) biphenyl (CBP) host at 16 wt. %, 3ACR-TRZ showed a high photoluminescence quantum yield of 98%. Transient photoluminescence decay measurements of the 16 wt. % 3ACR-TRZ: CBP film confirmed that 3ACR-TRZ exhibits efficient TADF with a triplet-to-light conversion efficiency of 96%. This high conversion efficiency makes 3ACR-TRZ attractive as an emitting dopant in OLEDs. Using 3ACR-TRZ as an emitter, we fabricated a solution-processed OLED exhibiting a maximum external quantum efficiency of 18.6%. (C) 2015 AIP Publishing LLC.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Highly efficient electroluminescence from evaporation- and solution-processable orange-red thermally activated delayed fluorescence emitters
    Wang, Binyan
    Yang, Hannan
    Zhang, Yaxing
    Xie, Guohua
    Ran, Huijuan
    Wang, Tao
    Fu, Qiang
    Ren, Yitao
    Sun, Ning
    Zhao, Guangtao
    Hu, Jian-Yong
    Wang, Qiang
    JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (39) : 12321 - 12327
  • [2] 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)
  • [3] Molecular design strategies for the highly efficient vacuum and solution-processable long wavelength thermally activated delayed fluorescence emitters
    Kothavale, Shantaram
    Cheong, Kiun
    Kim, Seung Chan
    Zeng, Songkun
    Wang, Yafei
    Lee, Jun Yeob
    CHEMICAL ENGINEERING JOURNAL, 2023, 477
  • [4] Universal polymeric bipolar hosts for highly efficient solution-processable blue and green thermally activated delayed fluorescence OLEDs
    Hwang, Jinhyo
    Kim, Chae Yeong
    Kang, Hyunchul
    Jeong, Ji-Eun
    Woo, Han Young
    Cho, Min Ju
    Park, Sungnam
    Choi, Dong Hoon
    JOURNAL OF MATERIALS CHEMISTRY C, 2020, 8 (45) : 16048 - 16056
  • [5] Carbazole Dendrimers as Solution-Processable Thermally Activated Delayed-Fluorescence Materials
    Albrecht, Ken
    Matsuoka, Kenichi
    Fujita, Katsuhiko
    Yamamoto, Kimihisa
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2015, 54 (19) : 5677 - 5682
  • [6] 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
  • [7] Highly efficient blue electroluminescence based on thermally activated delayed fluorescence
    Hirata, Shuzo
    Sakai, Yumi
    Masui, Kensuke
    Tanaka, Hiroyuki
    Lee, Sae Youn
    Nomura, Hiroko
    Nakamura, Nozomi
    Yasumatsu, Mao
    Nakanotani, Hajime
    Zhang, Qisheng
    Shizu, Katsuyuki
    Miyazaki, Hiroshi
    Adachi, Chihaya
    NATURE MATERIALS, 2015, 14 (03) : 330 - 336
  • [8] Highly efficient blue electroluminescence based on thermally activated delayed fluorescence
    Hirata S.
    Sakai Y.
    Masui K.
    Tanaka H.
    Lee S.Y.
    Nomura H.
    Nakamura N.
    Yasumatsu M.
    Nakanotani H.
    Zhang Q.
    Shizu K.
    Miyazaki H.
    Adachi C.
    Nature Materials, 2015, 14 (3) : 330 - 336
  • [9] An efficient strategy enabling solution processable thermally activated delayed fluorescence emitter with high horizontal dipole orientation
    Zhao, Zheng
    Tang, Ben Zhong
    CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2024, 43 (06)
  • [10] Thermally Activated Delayed Fluorescence in Polymers: A New Route toward Highly Efficient Solution Processable OLEDs
    Nikolaenko, Andrey E.
    Cass, Michael
    Bourcet, Florence
    Mohamad, David
    Roberts, Matthew
    ADVANCED MATERIALS, 2015, 27 (44) : 7236 - +
12345