High‐Efficiency Red Organic Light‐Emitting Diodes with External Quantum Efficiency Close to 30% Based on a Novel Thermally Activated Delayed Fluorescence Emitter

2019 ◽  
Vol 31 (42) ◽  
pp. 1902368 ◽  
Author(s):  
Yuan‐Lan Zhang ◽  
Quan Ran ◽  
Qiang Wang ◽  
Yuan Liu ◽  
Christian Hänisch ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light

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.

scholarly journals Control of the dual emission from a thermally activated delayed fluorescence emitter containing phenothiazine units in organic light-emitting diodes

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4336-4343 ◽  
Author(s):  
Ikbal Marghad ◽  
Fatima Bencheikh ◽  
Chao Wang ◽  
Sophia Manolikakes ◽  
Alice Rérat ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Dual Emission ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light

A novel TADF emitter showing dual emission is synthesized and applied to OLEDs with an external quantum efficiency of 11.5%.

n-Doping-induced efficient electron-injection for high efficiency inverted organic light-emitting diodes based on thermally activated delayed fluorescence emitter

2017 ◽  
Vol 5 (33) ◽  
pp. 8400-8407 ◽  
Author(s):  
Yongzhen Chen ◽  
Xiaofang Wei ◽  
Zhiyi Li ◽  
Yanwei Liu ◽  
Jianjun Liu ◽  
...  
Keyword(s):  
External Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light ◽  
N Doping

Inverted organic light-emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) emitters achieved a maximum external quantum efficiency of 16.4%.

Highly efficient organic light emitting diodes based on a D–A–D type dibenzothiophene derivative exhibiting thermally activated delayed fluorescence with small ΔEST

2016 ◽  
Vol 4 (43) ◽  
pp. 10205-10208 ◽  
Author(s):  
Xin He ◽  
Tong Shan ◽  
Xiangyang Tang ◽  
Yu Gao ◽  
Jinyu Li ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light

DPAC–DBTDO possesses a very small ΔEST of 0.10 eV between S1 and T1. A high external quantum efficiency of 13.1% is achieved in multi-layered OLEDs.

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