Three-dimensional organic cage with narrowband delayed fluorescence

被引：10

作者：

Hu Yingyuan ^{[1
]}

Yao Jingwen ^{[1
]}

Xu Zeng ^{[1
]}

Wang Zhenfeng ^{[1
]}

Li Li ^{[1
]}

Su Shi-Jian ^{[1
]}

Ma Dongge ^{[1
]}

Huang Fei ^{[1
]}

机构：

[1] South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China

来源：

SCIENCE CHINA-CHEMISTRY | 2020年 / 63卷 / 07期

基金：

中国国家自然科学基金;

关键词：

organic cage; narrowband delayed fluorescence; one-pot synthesis; LIGHT-EMITTING-DIODES; DESIGN; EFFICIENCY; MOLECULES;

D O I：

10.1007/s11426-020-9713-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new type of simple emissive organic cage consisting of diphenyl sulfone units and nitrogen atoms was developed via one-pot C-N coupling condensation or two-step reactions along with a series of sulfoxide cages obtained, which exhibited excellent chemical modifiability and structural stability. By precisely controlling the participation of donor and acceptor units, a highly soluble organic cage with delayed fluorescence was obtained for the first time. More interestingly, due to the restriction of intramolecular flipping by locking the building blocks within a rigid framework, this emissive organic cage further showed narrowband ultra-deep blue electroluminescence emission at 413 nm with a full-width at half-maximum of 35 nm. This finding not only expands the family of electroluminescent organic cages, but also opens up a new platform for delayed fluorescence materials with high solubility and color purity.

引用

页码：897 / 903

页数：7

共 53 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] Soft templates in encapsulation complexes [J].

Ajami, Dariush ;

Liu, Lijuan ;

Rebek, Julius, Jr. .

CHEMICAL SOCIETY REVIEWS, 2015, 44 (02) :490-499

[3]

Cau X, 2016, ADV FUNCT MATER, V26, P8042, DOI [10.1002/adfm.201603520, DOI 10.1002/ADFM.201603520]

[4] Marching Toward Highly Efficient, Pure-Blue, and Stable Thermally Activated Delayed Fluorescent Organic Light-Emitting Diodes [J].

Cai, Xinyi ;

Su, Shi-Jian .

ADVANCED FUNCTIONAL MATERIALS, 2018, 28 (43)

[5] Supramolecular Coordination: Self-Assembly of Finite Two- and Three-Dimensional Ensembles [J].

Chakrabarty, Rajesh ;

Mukherjee, Partha Sarathi ;

Stang, Peter J. .

CHEMICAL REVIEWS, 2011, 111 (11) :6810-6918

[6] Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters [J].

Chan, Chin-Yiu ;

Cui, Lin-Song ;

Kim, Jong Uk ;

Nakanotani, Hajime ;

Adachi, Chihaya .

ADVANCED FUNCTIONAL MATERIALS, 2018, 28 (11)

[7] Controlling Singlet-Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters [J].

Cui, Lin-Song ;

Nomura, Hiroko ;

Geng, Yan ;

Kim, Jong Uk ;

Nakanotani, Hajime ;

Adachi, Chihaya .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (06) :1571-1575

[8] The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices [J].

Dias, Fernando B. ;

Santos, Jose ;

Graves, David R. ;

Data, Przemyslaw ;

Nobuyasu, Roberto S. ;

Fox, Mark A. ;

Batsanov, Andrei S. ;

Palmeira, Tiago ;

Berberan-Santos, Mrio N. ;

Bryce, Martin R. ;

Monkman, Andrew P. .

ADVANCED SCIENCE, 2016, 3 (12)

[9] Efficient up-conversion of triplet excitons into a singlet state and its application for organic light emitting diodes [J].

Endo, Ayataka ;

Sato, Keigo ;

Yoshimura, Kazuaki ;

Kai, Takahiro ;

Kawada, Atsushi ;

Miyazaki, Hiroshi ;

Adachi, Chihaya .

APPLIED PHYSICS LETTERS, 2011, 98 (08)

[10] Revealing the spin-vibronic coupling mechanism of thermally activated delayed fluorescence [J].

Etherington, Marc K. ;

Gibson, Jamie ;

Higginbotham, Heather F. ;

Penfold, Thomas J. ;

Monkman, Andrew P. .

NATURE COMMUNICATIONS, 2016, 7

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