The Design of Dual Emitting Cores for Green Thermally Activated Delayed Fluorescent Materials

被引：181

作者：

Cho, Yong Joo ^{[1
]}

Jeon, Sang Kyu ^{[2
]}

Chin, Byung Doo ^{[1
]}

Yu, Eunsun ^{[3
]}

Lee, Jun Yeob ^{[2
]}

机构：

[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi, South Korea

[2] Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, Gyeonggi, South Korea

[3] Samsung SDI, Cent R&D Ctr, Suwon 443803, Gyeonggi Do, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 17期

基金：

新加坡国家研究基金会;

关键词：

fluorescence; fluorescent materials; photochemistry; photoluminescence; quantum efficiency; EXTERNAL QUANTUM EFFICIENCY; HOST MATERIAL; DIODES; DERIVATIVES; 25-PERCENT; DEVICES; TADF;

D O I：

10.1002/anie.201412107

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dual emitting cores for thermally activated delayed fluorescent (TADF) emitters were developed. Relative to the corresponding TADF emitter with a single emitting core the TADF emitter with a dual emitting core, 3,3', 5,5'-tetra(carbazol-9-yl)-[1,1'-biphenyl]-2,2', 6,6'-tetracarbonitrile, showed enhanced light absorption accompanied by a high photoluminescence quantum yield. The quantum and power efficiencies of the TADF devices were enhanced by the dual emitting cores.

引用

页码：5201 / 5204

页数：4

共 21 条

[1] Cool and warm hybrid white organic light-emitting diode with blue delayed fluorescent emitter both as blue emitter and triplet host [J].

Cho, Yong Joo ;

Yook, Kyoung Soo ;

Lee, Jun Yeob .

SCIENTIFIC REPORTS, 2015, 5

[2] High Efficiency in a Solution-Processed Thermally Activated Delayed-Fluorescence Device Using a Delayed-Fluorescence Emitting Material with Improved Solubility [J].

Cho, Yong Joo ;

Yook, Kyoung Soo ;

Lee, Jun Yeob .

ADVANCED MATERIALS, 2014, 26 (38) :6642-6646

[3] A Universal Host Material for High External Quantum Efficiency Close to 25% and Long Lifetime in Green Fluorescent and Phosphorescent OLEDs [J].

Cho, Yong Joo ;

Yook, Kyoung Soo ;

Lee, Jun Yeob .

ADVANCED MATERIALS, 2014, 26 (24) :4050-4055

[4] Triplet Harvesting with 100% Efficiency by Way of Thermally Activated Delayed Fluorescence in Charge Transfer OLED Emitters [J].

Dias, Fernando B. ;

Bourdakos, Konstantinos N. ;

Jankus, Vygintas ;

Moss, Kathryn C. ;

Kamtekar, Kiran T. ;

Bhalla, Vandana ;

Santos, Jose ;

Bryce, Martin R. ;

Monkman, Andrew P. .

ADVANCED MATERIALS, 2013, 25 (27) :3707-3714

[5] Above 20% External Quantum Efficiency in Thermally Activated Delayed Fluorescence Device Using Furodipyridine-Type Host Materials [J].

Im, Yirang ;

Lee, Jun Yeob .

CHEMISTRY OF MATERIALS, 2014, 26 (03) :1413-1419

[6] Highly Efficient TADF OLEDs: How the Emitter-Host Interaction Controls Both the Excited State Species and Electrical Properties of the Devices to Achieve Near 100% Triplet Harvesting and High Efficiency [J].

Jankus, Vygintas ;

Data, Przemyslaw ;

Graves, David ;

McGuinness, Callum ;

Santos, Jose ;

Bryce, Martin R. ;

Dias, Fernando B. ;

Monkman, Andrew P. .

ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (39) :6178-6186

[7] Above 20% external quantum efficiency in novel hybrid white organic light-emitting diodes having green thermally activated delayed fluorescent emitter [J].

Kim, Bo Seong ;

Yook, Kyoung Soo ;

Lee, Jun Yeob .

SCIENTIFIC REPORTS, 2014, 4

[8] Engineering of Mixed Host for High External Quantum Efficiency above 25% in Green Thermally Activated Delayed Fluorescence Device [J].

Kim, Bo Seong ;

Lee, Jun Yeob .

ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (25) :3970-3977

[9] Phosphine Oxide Type Bipolar Host Material for High Quantum Efficiency in Thermally Activated Delayed Fluorescent Device [J].

Kim, Bo Seong ;

Lee, Jun Yeob .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (11) :8396-8400

[10] Luminous Butterflies: Efficient Exciton Harvesting by Benzophenone Derivatives for Full-Color Delayed Fluorescence OLEDs [J].

Lee, Sae Youn ;

Yasuda, Takuma ;

Yang, Yu Seok ;

Zhang, Qisheng ;

Adachi, Chihaya .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (25) :6402-6406

← 1 2 3 →