Highly rigid polycyclic acceptors by incorporating quinoxaline and naphthalimideacridine towards red TADF emitters

被引：7

作者：

Peng, Qinqin ^{[1
]}

Yang, Wei ^{[1
]}

Li, Lili ^{[2
]}

Miao, Jingsheng ^{[3
]}

Gong, Shaolong ^{[1
]}

Gao, Xiang ^{[2
]}

Yang, Chuluo ^{[1
,3
]}

机构：

[1] Wuhan Univ, Renmin Hosp, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Sci Res Dept, Cent Lab, Renmin Hosp, Wuhan 430060, Peoples R China

[3] Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen Key Lab New Informat Display & Storage Ma, Shenzhen 518060, Peoples R China

来源：

DYES AND PIGMENTS | 2023年 / 218卷

基金：

中国国家自然科学基金;

关键词：

Thermally activated delayed fluorescence; Polycyclic; Red emitter; Organic light-emitting diodes; DONOR;

D O I：

10.1016/j.dyepig.2023.111515

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The development of red thermally activated delayed fluorescence (TADF) emitters with the emission peak above 600 nm remains far behind blue and green emitters. Herein, the highly rigid polycyclic acceptors with strong electron-withdrawing ability, integrated by quinoxaline and 1,8-naphthalimideacridine units, were utilized to construct two new red emitters with emission peak at 640 nm. Both target molecules display the twisted configuration to decrease singlet-triplet splitting energy (& UDelta;EST) for the TADF property. Red organic light-emitting diodes (OLEDs) employing the emitters achieve the maximum external quantum efficiencies of 5.2% with electroluminescence peaks over 600 nm. This work provides a feasible strategy of the new polycyclic acceptors for developing efficient red TADF emitters.

引用

页数：6

共 39 条

[1] Highly efficient blue thermally activated delayed fluorescence emitters based on symmetrical and rigid oxygen-bridged boron acceptors [J].

Ahn, Dae Hyun ;

Kim, Si Woo ;

Lee, Hyuna ;

Ko, Ik Jang ;

Karthik, Durai ;

Lee, Ju Young ;

Kwon, Jang Hyuk .

NATURE PHOTONICS, 2019, 13 (08) :540-+

[2] High efficiency green TADF emitters of acridine donor and triazine acceptor D-A-D structures [J].

Braveenth, Ramanaskanda ;

Lee, Hyuna ;

Kim, Sohyeon ;

Raagulan, Kanthasamy ;

Kim, Sunghoon ;

Kwon, Jang Hyuk ;

Chai, Kyu Yun .

JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (25) :7672-7680

[3]

Chen J.-X., 2022, DYES PIGMENTS, V208, DOI DOI 10.1016/J.DYEPIG.2022.110801

[4] Red Organic Light-Emitting Diode with External Quantum Efficiency beyond 20% Based on a Novel Thermally Activated Delayed Fluorescence Emitter [J].

Chen, Jia-Xiong ;

Wang, Kai ;

Zheng, Cai-Jun ;

Zhang, Ming ;

Shi, Yi-Zhong ;

Tao, Si-Lu ;

Lin, Hui ;

Liu, Wei ;

Tao, Wen-Wen ;

Ou, Xue-Mei ;

Zhang, Xiao-Hong .

ADVANCED SCIENCE, 2018, 5 (09)

[5] Versatile Aggregation-Enhanced Delayed Fluorescence Luminogens Functioning as Emitters and Hosts for High-Performance Organic Light-Emitting Diodes [J].

Chen, Jinke ;

Zeng, Jiajie ;

Zhu, Xiangyu ;

Guo, Jingjing ;

Zhao, Zujin ;

Tang, Ben Zhong .

CCS CHEMISTRY, 2021, 3 (12) :230-240

[6] Triarylamine-Pyridine-Carbonitriles for Organic Light-Emitting Devices with EQE Nearly 40% [J].

Chen, Yi-Kuan ;

Jayakumar, Jayachandran ;

Hsieh, Chia-Min ;

Wu, Tien-Lin ;

Liao, Chun-Cheng ;

Pandidurai, Jayabalan ;

Ko, Chang-Lun ;

Hung, Wen-Yi ;

Cheng, Chien-Hong .

ADVANCED MATERIALS, 2021, 33 (35)

[7] Dibenzo[a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters [J].

Data, Przemyslaw ;

Pander, Piotr ;

Okazaki, Masato ;

Takeda, Youhei ;

Minakata, Satoshi ;

Monkman, Andrew P. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (19) :5739-5744

[8] Efficient selenium-integrated TADF OLEDs with reduced roll-off [J].

Hu, Yu Xuan ;

Miao, Jingsheng ;

Hua, Tao ;

Huang, Zhongyan ;

Qi, Yanyu ;

Zou, Yang ;

Qiu, Yuntao ;

Xia, Han ;

Liu, He ;

Cao, Xiaosong ;

Yang, Chuluo .

NATURE PHOTONICS, 2022, 16 (11) :803-+

[9] Acridan-Grafted Poly(biphenyl germanium) with High Triplet Energy, Low Polarizability, and an External Heavy-Atom Effect for Highly Efficient Sky-Blue TADF Electroluminescence [J].

Hung, Miao-Ken ;

Tsai, Kuen-Wei ;

Sharma, Sunil ;

Wu, Jun-Yi ;

Chen, Show-An .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2019, 58 (33) :11317-11323

[10] Purely organic electroluminescent material realizing 100% conversion from electricity to light [J].

Kaji, Hironori ;

Suzuki, Hajime ;

Fukushima, Tatsuya ;

Shizu, Katsuyuki ;

Suzuki, Katsuaki ;

Kubo, Shosei ;

Komino, Takeshi ;

Oiwa, Hajime ;

Suzuki, Furitsu ;

Wakamiya, Atsushi ;

Murata, Yasujiro ;

Adachi, Chihaya .

NATURE COMMUNICATIONS, 2015, 6

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