Literature DB >> 22931361

Design of efficient thermally activated delayed fluorescence materials for pure blue organic light emitting diodes.

Qisheng Zhang1, Jie Li, Katsuyuki Shizu, Shuping Huang, Shuzo Hirata, Hiroshi Miyazaki, Chihaya Adachi.   

Abstract

Efficient thermally activated delayed fluorescence (TADF) has been characterized for a carbazole/sulfone derivative in both solutions and doped films. A pure blue organic light emitting diode (OLED) based on this compound demonstrates a very high external quantum efficiency (EQE) of nearly 10% at low current density. Because TADF only occurs in a bipolar system where donor and acceptor centered (3)ππ* states are close to or higher than the triplet intramolecular charge transfer ((3)CT) state, control of the π-conjugation length of both donor and acceptor is considered to be as important as breaking the π-conjugation between them in blue TADF material design.

Entities:  

Year:  2012        PMID： 22931361     DOI： 10.1021/ja306538w

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


  71 in total

Review 1.  Reverse intersystem crossing from upper triplet levels to excited singlet: a 'hot excition' path for organic light-emitting diodes.

Authors:  Dehua Hu; Liang Yao; Bing Yang; Yuguang Ma
Journal:  Philos Trans A Math Phys Eng Sci       Date:  2015-06-28       Impact factor: 4.226

2.  Highly efficient blue electroluminescence based on thermally activated delayed fluorescence.

Authors:  Shuzo Hirata; Yumi Sakai; Kensuke Masui; Hiroyuki Tanaka; Sae Youn Lee; Hiroko Nomura; Nozomi Nakamura; Mao Yasumatsu; Hajime Nakanotani; Qisheng Zhang; Katsuyuki Shizu; Hiroshi Miyazaki; Chihaya Adachi
Journal:  Nat Mater       Date:  2014-12-08       Impact factor: 43.841

3.  Elucidating the Electronic Structure of a Delayed Fluorescence Emitter via Orbital Interactions, Excitation Energy Components, Charge-Transfer Numbers, and Vibrational Reorganization Energies.

Authors:  Zheng Pei; Qi Ou; Yuezhi Mao; Junjie Yang; Aurélien de la Lande; Felix Plasser; Wanzhen Liang; Zhigang Shuai; Yihan Shao
Journal:  J Phys Chem Lett       Date:  2021-03-11       Impact factor: 6.475

4.  Design of efficient molecular organic light-emitting diodes by a high-throughput virtual screening and experimental approach.

Authors:  Rafael Gómez-Bombarelli; Jorge Aguilera-Iparraguirre; Timothy D Hirzel; David Duvenaud; Dougal Maclaurin; Martin A Blood-Forsythe; Hyun Sik Chae; Markus Einzinger; Dong-Gwang Ha; Tony Wu; Georgios Markopoulos; Soonok Jeon; Hosuk Kang; Hiroshi Miyazaki; Masaki Numata; Sunghan Kim; Wenliang Huang; Seong Ik Hong; Marc Baldo; Ryan P Adams; Alán Aspuru-Guzik
Journal:  Nat Mater       Date:  2016-08-08       Impact factor: 43.841

5.  Efficient modulation of optical and electrical properties of X-shaped thermally activated delayed fluorescence emitters by substitution.

Authors:  Jianzhong Fan; Xin Wang; Lili Lin; Chuankui Wang
Journal:  J Mol Model       Date:  2016-07-06       Impact factor: 1.810

6.  Organic light-emitting diodes: High-throughput virtual screening.

Authors:  Shuzo Hirata; Katsuyuki Shizu
Journal:  Nat Mater       Date:  2016-09-23       Impact factor: 43.841

7.  Optically Activated Delayed Fluorescence.

Authors:  Blake C Fleischer; Jeffrey T Petty; Jung-Cheng Hsiang; Robert M Dickson
Journal:  J Phys Chem Lett       Date:  2017-07-17       Impact factor: 6.475

8.  Blue Thermally Activated Delayed Fluorescence from a Biphenyl Difluoroboron β-Diketonate.

Authors:  Margaret L Daly; Christopher A DeRosa; Caroline Kerr; William A Morris; Cassandra L Fraser
Journal:  RSC Adv       Date:  2016-08-30       Impact factor: 3.361

9.  Enhanced Electroluminescence Based on a π-Conjugated Heptazine Derivative by Exploiting Thermally Activated Delayed Fluorescence.

Authors:  Jie Li; Heqi Gong; Jincheng Zhang; Shiyi Zhou; Li Tao; Lihua Jiang; Qiang Guo
Journal:  Front Chem       Date:  2021-05-13       Impact factor: 5.221

10.  Controlling ultralong room temperature phosphorescence in organic compounds with sulfur oxidation state.

Authors:  Zhen Xu; Clàudia Climent; Christopher M Brown; Duane Hean; Christopher J Bardeen; David Casanova; Michael O Wolf
Journal:  Chem Sci       Date:  2020-11-02       Impact factor: 9.825
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