Realizing 22.5% External Quantum Efficiency for Solution‐Processed Thermally Activated Delayed‐Fluorescence OLEDs with Red Emission at 622 nm via a Synergistic Strategy of Molecular Engineering and Host Selection

2019 ◽  
Vol 31 (33) ◽  
pp. 1901404 ◽  
Author(s):  
Weixuan Zeng ◽  
Tao Zhou ◽  
Weimin Ning ◽  
Cheng Zhong ◽  
Jiawei He ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Host Selection ◽  
External Quantum Efficiency ◽  
Delayed Fluorescence ◽  
Molecular Engineering ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Red Emission ◽  
Thermally Activated

A dendrimer emitter doped in a dendrimer host: efficient thermally activated delayed fluorescence OLEDs with fully-solution processed organic-layers

2018 ◽  
Vol 2 (6) ◽  
pp. 1097-1103 ◽  
Author(s):  
K. Albrecht ◽  
K. Matsuoka ◽  
K. Fujita ◽  
K. Yamamoto
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Delayed Fluorescence ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Organic Layers ◽  
Thermally Activated

TADF OLEDs with fully solution-processed organic-layers with all dendrimer emitting layers that exhibit 16.1% external quantum efficiency.

Dendritic host materials with non-conjugated adamantane cores for efficient solution-processed blue thermally activated delayed fluorescence OLEDs

2019 ◽  
Vol 7 (38) ◽  
pp. 11845-11850 ◽  
Author(s):  
Zhihua Ma ◽  
Wenyue Dong ◽  
Jianhua Hou ◽  
Qian Duan ◽  
Shiyang Shao ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Efficient Solution ◽  
Delayed Fluorescence ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Host Materials

Dendritic hosts containing non-conjugated adamantane cores are developed for solution-processed blue TADF OLEDs with a maximum external quantum efficiency of 18.3%.

Multi-carbazole encapsulation as a simple strategy for the construction of solution-processed, non-doped thermally activated delayed fluorescence emitters

2016 ◽  
Vol 4 (13) ◽  
pp. 2442-2446 ◽  
Author(s):  
Jiajia Luo ◽  
Shaolong Gong ◽  
Yu Gu ◽  
Tianheng Chen ◽  
Yifan Li ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Delayed Fluorescence ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Simple Strategy

Multi-carbazole encapsulation is demonstrated as a simple strategy for the development of solution-processed TADF emitters. The resulting OLED achieves a high external quantum efficiency of 12.2% for non-doped solution-processed fluorescent OLEDs.

Bright white electroluminescence from a single polymer containing a thermally activated delayed fluorescence unit and a solution-processed orange OLED approaching 20% external quantum efficiency

2017 ◽  
Vol 5 (41) ◽  
pp. 10715-10720 ◽  
Author(s):  
Yanjie Wang ◽  
Yunhui Zhu ◽  
Guohua Xie ◽  
Hongmei Zhan ◽  
Chuluo Yang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Delayed Fluorescence ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
White Electroluminescence

Efficient white and orange emissions have been achieved in doped OLEDs using TADF conjugated polymers with a backbone-donor/pendant-acceptor architecture.

Thermally activated delayed fluorescence OLEDs with fully solution processed organic layers exhibiting nearly 10% external quantum efficiency

2017 ◽  
Vol 53 (16) ◽  
pp. 2439-2442 ◽  
Author(s):  
Ken Albrecht ◽  
Kenichi Matsuoka ◽  
Daisuke Yokoyama ◽  
Yoshiya Sakai ◽  
Akira Nakayama ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Delayed Fluorescence ◽  
Oled Device ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Organic Layers ◽  
Thermally Activated

An OLED device with fully solution processed organic layers with new laminatable TADF dendrimers, which exhibits 9.5% external quantum efficiency, is reported.

Over 20% external quantum efficiency in red thermally activated delayed fluorescence organic light-emitting diodes using a reverse intersystem crossing activating host

2018 ◽  
Vol 6 (20) ◽  
pp. 5363-5368 ◽  
Author(s):  
Ji Han Kim ◽  
Dong Ryun Lee ◽  
Si Hyun Han ◽  
Jun Yeob Lee
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Intersystem Crossing ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light

Highly efficient red thermally activated delayed fluorescence organic light-emitting diodes were developed using a reverse intersystem crossing activating host derived from phenylcarbazole and pyridofuropyridine.

High efficiency pure blue thermally activated delayed fluorescence molecules having 10H-phenoxaborin and acridan units

2015 ◽  
Vol 51 (46) ◽  
pp. 9443-9446 ◽  
Author(s):  
Masaki Numata ◽  
Takuma Yasuda ◽  
Chihaya Adachi
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Delayed Fluorescence ◽  
New Materials ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated

New materials emitting pure blue thermally activated delayed fluorescence achieve 20% external quantum efficiency and exhibit nearly concentration-independent photoluminescence.

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