Thermally activated delayed fluorescence with a narrow emission spectrum and organic room temperature phosphorescence by controlling spin-orbit coupling and phosphorescence lifetime of metal-free organic molecules

被引：66
|
作者：
Pander, Piotr [1 ]
Swist, Agnieszka [2 ]
Motyka, Radoslaw [3 ]
Soloducho, Jadwiga [2 ]
Dias, Fernando B. [1 ]
Data, Przemyslaw [1 ,3 ,4 ]
机构：
[1] Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, England
[2] Wroclaw Univ Technol, Fac Chem, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland
[3] Silesian Tech Univ, Fac Chem, Ks M Strzody 9, PL-44100 Gliwice, Poland
[4] Polish Acad Sci, Ctr Polymer & Carbon Mat, M Curie Sklodowskiej 34, PL-41819 Zabrze, Poland
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2018年 / 6卷 / 20期
基金：
欧盟地平线“2020”;
关键词：
LIGHT-EMITTING-DIODES; EFFICIENCY; COMPLEXES; MECHANISM; ACRIDONE; OLEDS; TADF; LUMINESCENCE; DESIGN; GREEN;
D O I：
10.1039/c8tc00175h
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work presents a study of two organic molecules with a very similar, large singlet-triplet energy gap, one of which is a thermally activated delayed fluorescence (TADF) emitter and the other is a room temperature phosphorescence (RTP) emitter. By investigating their photophysical properties we are able to explain their distinct behavior. The molecules are studied in non-polar polymers and OLED hosts. Furthermore, this work presents a CT TADF emitter that shows a narrow and resolved electroluminescence spectrum (FWHM = 53 nm). The study shows an efficient RTP emitter based on a D-D-D structure and also the first acridone-based TADF emitter with a D-A-D structure.
引用
收藏
页码：5434 / 5443
页数：10
相关论文
共 49 条
  • [31] Non-adiabatic conformation distortion charge transfer enables dual emission of thermally activated delayed fluorescence and room temperature phosphorescence
    Guo, Yurong
    Guan, Hongwei
    Li, Peng
    Wang, Chao
    Wang, Yanan
    Zhang, Jingran
    Zhao, Guangjiu
    SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2024, 311
  • [32] The dual-band emission with long-lived thermally activated delayed fluorescence and room temperature phosphorescence by trace ingredient incorporation
    Shi, Lijuan
    Liu, Jiaqi
    Ma, Lei
    Wang, Yongtao
    CHEMICAL ENGINEERING JOURNAL, 2024, 493
  • [33] Chiral Polymer-Organic Molecule Composite with Circularly Polarized Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence by Bridging Effect of Hydrogen Bond
    Chen, Ruilian
    Feng, Rui
    Huang, Zhenjie
    Feng, Dengchong
    Long, Yubo
    Zhang, Jiawen
    Yang, Yuzhao
    Ma, Zetong
    Yuan, Zhongke
    Lu, Shaolin
    Zhao, Zujin
    Chen, Xudong
    ADVANCED FUNCTIONAL MATERIALS, 2024, 34 (45)
  • [34] Multifunctional AIE Molecules Possessing Long-lasting Room Temperature Phosphorescence, Thermally Activated Delayed Fluorescence and Dual-mode Mechanochromism
    Zhang, Xiaokun
    Li, Xiaolong
    Wang, Zonghao
    Bai, Lulu
    Qu, Hongmei
    Xu, Songlin
    CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, 2023, 39 (06) : 960 - 967
  • [35] Multifunctional AIE Molecules Possessing Long-lasting Room Temperature Phosphorescence, Thermally Activated Delayed Fluorescence and Dual-mode Mechanochromism
    Xiaokun Zhang
    Xiaolong Li
    Zonghao Wang
    Lulu Bai
    Hongmei Qu
    Songlin Xu
    Chemical Research in Chinese Universities, 2023, 39 : 960 - 967
  • [36] A strongly greenish-blue-emitting Cu4Cl4 cluster with an efficient spin-orbit coupling (SOC): fast phosphorescence versus thermally activated delayed fluorescence
    Chen, Xu-Lin
    Yu, Rongmin
    Wu, Xiao-Yuan
    Liang, Dong
    Jia, Ji-Hui
    Lu, Can-Zhong
    CHEMICAL COMMUNICATIONS, 2016, 52 (37) : 6288 - 6291
  • [37] Saccharin-derived multifunctional emitters featuring concurrently room temperature phosphorescence, thermally activated delayed fluorescence and aggregation-induced enhanced emission
    Xiao, Zhengqi
    Li, Nengquan
    Yang, Wei
    Huang, Zhongyan
    Cao, Xiaosong
    Huang, Taian
    Chen, Zhanxiang
    Yang, Chuluo
    CHEMICAL ENGINEERING JOURNAL, 2021, 419
  • [38] Saccharin-derived multifunctional emitters featuring concurrently room temperature phosphorescence, thermally activated delayed fluorescence and aggregation-induced enhanced emission
    Xiao, Zhengqi
    Li, Nengquan
    Yang, Wei
    Huang, Zhongyan
    Cao, Xiaosong
    Huang, Taian
    Chen, Zhanxiang
    Yang, Chuluo
    Chemical Engineering Journal, 2021, 419
  • [39] Recent Developments on Multi-Functional Metal-Free Mechanochromic Luminescence and Thermally Activated Delayed Fluorescence Organic Materials
    Barman, Debasish
    Gogoi, Rajdikshit
    Narang, Kavita
    Iyer, Parameswar Krishnan
    FRONTIERS IN CHEMISTRY, 2020, 8
  • [40] A Multi-Functional New Acceptor for Ultra-Broad Multiple Emission, Long-Persistence Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence
    Andruleviciene, Viktorija
    Leitonas, Karolis
    Bernard, Ronit Sebastine
    Woon, Kai Lin
    Volyniuk, Dmytro
    Sini, Gjergji
    Grazulevicius, Juozas Vidas
    ADVANCED OPTICAL MATERIALS, 2024, 12 (33):
12345