Sublimable cationic iridium(iii) complexes with large steric hindrance for high-performance organic light-emitting diodes

2019 ◽  
Vol 48 (26) ◽  
pp. 9669-9675 ◽  
Author(s):  
Ruihuan Liu ◽  
Dongxin Ma ◽  
Chen Zhang ◽  
Lian Duan
Keyword(s):  
Steric Hindrance ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Highly efficient sublimable cationic iridium(iii) complexes with bulky ancillary and major ligands.

Highly efficient homojunction organic light-emitting diodes

2015 ◽  
Vol 3 (26) ◽  
pp. 6862-6867 ◽  
Author(s):  
Qiang Wang ◽  
Yali Zhao ◽  
Panlong Qiu ◽  
Chao Wu ◽  
Jiangshan Chen ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Device Structure ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Two types of high-performance homojunction OLEDs, blue p–i–n TOLEDs and bottom-emitting WOLEDs, were realized by meticulous optimization of the device structure.

Manipulating MLCT transition character with ppy-type four-coordinate organoboron skeleton for highly efficient long-wavelength Ir-based phosphors in organic light-emitting diodes

2021 ◽  
Author(s):  
Zhao Feng ◽  
Yue Yu ◽  
Xiaolong Yang ◽  
Yuanhui Sun ◽  
Daokun Zhong ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Design Strategy ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Long Wavelength ◽  
Highly Efficient ◽  
Mlct Transition ◽  
Organic Light

Inspired by the intriguing optoelectronic characteristics of 2-phenylpyridine-type (ppy-type) four-coordinate organoboron skeleton, we envisage a molecular design strategy through manipulating MLCT transition character to develop high-performance long-wavelength Ir-based phosphors with...

Highly efficient electroluminescence from evaporation- and solution-processable orange–red thermally activated delayed fluorescence emitters

2019 ◽  
Vol 7 (39) ◽  
pp. 12321-12327 ◽  
Author(s):  
Binyan Wang ◽  
Hannan Yang ◽  
Yaxing Zhang ◽  
Guohua Xie ◽  
Huijuan Ran ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light ◽  
Solution Processable

Orange and red thermally activated delayed fluorescence emitters have been developed for high performance vacuum-deposited and solution-processable organic light-emitting diodes.

High-performance hybrid white organic light-emitting diodes with simple emitting structures and low efficiency roll-off based on blue thermally activated delayed fluorescence emitters with bipolar transport characteristics

2018 ◽  
Vol 6 (35) ◽  
pp. 9510-9516 ◽  
Author(s):  
Chenyang Zhao ◽  
Tianmu Zhang ◽  
Jiangshan Chen ◽  
Donghang Yan ◽  
Dongge Ma
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light ◽  
Low Efficiency

Highly efficient and low efficiency roll-off WOLEDs by simple insertion of multi-ultrathin phosphorescent layers within blue TADF emitters.

Novel Carbazole-based Multifunctional Materials with Hybridized Local and Charge-Transfer Excited State Acting as Deep Blue Emitters and Phosphorescent Hosts for Highly Efficient Organic Light-Emitting Diodes

2021 ◽  
Author(s):  
Haitao Zhou ◽  
Mengna Yin ◽  
Zhenhong Zhao ◽  
Yanqin Miao ◽  
Xin Jin ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Multifunctional Materials ◽  
Light Emitting ◽  
Highly Efficient ◽  
Deep Blue ◽  
Organic Light ◽  
Blue Emitters

In this work, two carbazole- and benzo[d]oxazole-based novel multifunctional materials with hybridized local and charge-transfer (HLCT) characteristic, namely OCI and OCT, which could act as deep-blue fluorophors and phosphorescent hosts,...

Ultra-smooth and robust graphene-based hybrid anode for high-performance flexible organic light-emitting diodes

2021 ◽  
Author(s):  
zhikun zhang ◽  
lianlian xia ◽  
Lizhao Liu ◽  
Yuwen Chen ◽  
zuozhi wang ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Chemical Vapor ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Large Particles

Large surface roughness, especially caused by the large particles generated during both the transfer and the doping processes of graphene grown by chemical vapor deposition (CVD) is always a critical...

Efficient organic light-emitting diodes based on iridium(III) complexes containing indolo[3,2,1-jk]carbazole derivatives with narrow emission bandwidths and low efficiency roll offs

2021 ◽  
Author(s):  
Xiang-Ji Liao ◽  
Jin-Jun Zhu ◽  
Li Yuan ◽  
Zhi-Ping Yan ◽  
Xu-Feng Luo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Carbazole Derivatives ◽  
Highly Efficient ◽  
Organic Light ◽  
Low Efficiency ◽  
Narrow Emission

In this work, two cyclometalated ligands 2-(pyridin-2-yl)indolo[3,2,1-jk]carbazole (pyidcz) and 2-(4-(trifluoromethyl)pyridin-2-yl)indolo[3,2,1-jk]carbazole (tfpyidcz) using indolo[3,2,1-jk]carbazole unit were synthesized for highly efficient iridium(III) complexes (pyidcz)2Ir(tmd) and (tfpyidcz)2Ir(tmd) (tmd = 2,2,6,6-tetramethyl-3,5-heptanedione). The two Ir(III)...

High performance red phosphorescent organic electroluminescent devices with characteristic mechanisms by utilizing terbium or gadolinium complexes as sensitizers

2017 ◽  
Vol 5 (8) ◽  
pp. 2066-2073 ◽  
Author(s):  
Rongzhen Cui ◽  
Weiqiang Liu ◽  
Liang Zhou ◽  
Xuesen Zhao ◽  
Yunlong Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Color Purity ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Organic Light ◽  
Gadolinium Complexes ◽  
Organic Electroluminescent ◽  
High Color Purity

High performance sensitized organic light-emitting diodes with high color purity were obtained by utilizing terbium or gadolinium complexes as sensitizers.

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