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

页码：12503 / 12508

页数：6

共 50 条

[21] Fabrication of high-performance non-doped OLEDs by combining aggregation-induced emission and thermally activated delayed fluorescence
Li, Zhen
SCIENCE CHINA-CHEMISTRY, 2017, 60 (08) : 1107 - 1108
[22] Fabrication of high-performance non-doped OLEDs by combining aggregation-induced emission and thermally activated delayed fluorescence
Zhen Li
Science China(Chemistry), 2017, (08) : 1107 - 1108
[23] Fabrication of high-performance non-doped OLEDs by combining aggregation-induced emission and thermally activated delayed fluorescence
Zhen Li
Science China Chemistry, 2017, 60 : 1107 - 1108
[24] Aggregation-induced emission and thermally activated delayed fluorescence of 2,6-diaminobenzophenones
Masaki Shimizu
Masaki Nakatani
Kenta Nishimura
Science China(Chemistry) , 2018, (08) : 925 - 931
[25] Aggregation-induced emission and thermally activated delayed fluorescence of 2,6-diaminobenzophenones
Shimizu, Masaki
Nakatani, Masaki
Nishimura, Kenta
SCIENCE CHINA-CHEMISTRY, 2018, 61 (08) : 925 - 931
[26] Theoretical study on the light-emitting mechanism of circularly polarized luminescence molecules with both thermally activated delayed fluorescence and aggregation-induced emission
Yin, Xiu
Fan, Jian-Zhong
Liu, Jie
Cai, Lei
Sun, Hao
Sun, Yu-Ping
Wang, Chuan-Kui
Lin, Li-Li
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2019, 21 (14) : 7288 - 7297
[27] Aggregation-induced emission and thermally activated delayed fluorescence of 2,6-diaminobenzophenones
Masaki Shimizu
Masaki Nakatani
Kenta Nishimura
Science China Chemistry, 2018, 61 : 925 - 931
[28] Aggregation-induced emission and thermally activated delayed fluorescence of 2,6-diaminobenzophenones
Masaki Shimizu
Masaki Nakatani
Kenta Nishimura
Science China(Chemistry), 2018, 61 (08) : 925 - 931
[29] Through-space charge transfer hexaarylbenzene dendrimers with thermally activated delayed fluorescence and aggregation-induced emission for efficient solution-processed OLEDs
Wang, Xingdong
Wang, Shumeng
Lv, Jianhong
Shao, Shiyang
Wang, Lixiang
Jing, Xiabin
Wang, Fosong
CHEMICAL SCIENCE, 2019, 10 (10) : 2915 - 2923
[30] An excellent bipolar host material exhibiting EQE of 24.0% with small efficiency roll-off in solution-processable thermally activated delayed fluorescence OLEDs
Godumala, Mallesham
Yoon, Jiwon
Jeong, Cheol Hun
Lee, Chiho
Jeong, Ji-Eun
Park, Sungnam
Woo, Han Young
Cho, Min Ju
Choi, Dong Hoon
JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (44) : 13930 - 13938

← 1 2 3 4 5 →