Tetraphenylbenzene-based AIEgens: horizontally oriented emitters for highly efficient non-doped deep blue OLEDs and hosts for high-performance hybrid WOLEDs

2020 ◽  
Vol 8 (21) ◽  
pp. 7012-7018 ◽  
Author(s):  
Pengbo Han ◽  
Zeng Xu ◽  
Chengwei Lin ◽  
Dongge Ma ◽  
Anjun Qin ◽  
...  
Keyword(s):  
High Performance ◽  
Highly Efficient ◽  
Deep Blue ◽  
Low Efficiency

Non-doped deep blue OLEDs and hybrid WOLEDs with high performance and low efficiency roll-off are reported based on tetraphenylbenzene-cored AIEgens.

Tetraphenylbenzene-based AIEgens: the Horizontally Oriented Emitters for highly Efficient Non-doped Deep Blue OLEDs and Host for High-Performance Hybrid WOLEDs

2020 ◽  
Author(s):  
Pengbo Han ◽  
Zeng Xu ◽  
Chengwei Lin ◽  
Dongge Ma ◽  
Anjun Qin ◽  
...  
Keyword(s):  
High Performance ◽  
General Strategy ◽  
Flat Panel Displays ◽  
Light Emitting ◽  
Horizontal Orientation ◽  
Deep Blue ◽  
Full Color ◽  
High Emission ◽  
White Oleds ◽  
Low Efficiency

Deep blue organic-emitting fluorophores are crucial for application in white lighting and full color flat-panel displays but emitters with high color quality and efficiency are rare. Herein, novel deep blue AIE luminogens (AIEgens) with various donor units and an acceptor of cyano substituted tetraphenylbenzene (TPB) cores were developed and used to fabricate non-doped deep blue and hybrid white organic light-emitting diodes (OLEDs). Benefiting from its high emission efficiency and high proportion of horizontally oriented dipoles in the film state, the non-doped deep blue device based on CN-TPB-TPA realized a maximum external quantum efficiency 7.27%, with a low efficiency roll-off and CIE coordinates of (0.15, 0.08). Moreover, efficient two-color hybrid warm white OLEDs (CIE<sub>x,y</sub> = 0.43, 0.45) were achieved using CN-TPB-TPA as the blue-emitting layer and phosphor doped host, which realized maximum current, power, external quantum efficiencies 58.0 cd A<sup>-1</sup>, 60.7 lm W<sup>-1</sup> and 19.1%, respectively. This work provides a general strategy to achieve high performance, stable deep blue and hybrid white OLEDs by construction of AIEgens with excellent horizontal orientation

A combinational molecular design to achieve highly efficient deep-blue electrofluorescence

2018 ◽  
Vol 6 (4) ◽  
pp. 745-753 ◽  
Author(s):  
Mengying Bian ◽  
Zifeng Zhao ◽  
Yu Li ◽  
Qing Li ◽  
Zhijian Chen ◽  
...  
Keyword(s):  
High Performance ◽  
Molecular Design ◽  
Highly Efficient ◽  
Deep Blue

A novel high-performance deep-blue emitting material TPEA that combines the merits of AIE and TTF plus HLCT is demonstrated.

scholarly journals Rational design and characterization of heteroleptic phosphorescent iridium(iii) complexes for highly efficient deep-blue OLEDs

2016 ◽  
Vol 4 (43) ◽  
pp. 10246-10252 ◽  
Author(s):  
Yansong Feng ◽  
Xuming Zhuang ◽  
Dongxia Zhu ◽  
Yu Liu ◽  
Yue Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Organic Light Emitting Diodes ◽  
Iridium Complexes ◽  
High Luminance ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light ◽  
Low Efficiency

Deep-blue phosphorescent organic light emitting diodes (PhOLEDs) based on new heteroleptic iridium complexes achieve remarkably high performance with low efficiency roll-off at high luminance.

Tetraphenylbenzene-based AIEgens: the Horizontally Oriented Emitters for highly Efficient Non-doped Deep Blue OLEDs and Host for High-Performance Hybrid WOLEDs

2020 ◽  
Author(s):  
Pengbo Han ◽  
Zeng Xu ◽  
Chengwei Lin ◽  
Dongge Ma ◽  
Anjun Qin ◽  
...  
Keyword(s):  
High Performance ◽  
General Strategy ◽  
Flat Panel Displays ◽  
Light Emitting ◽  
Horizontal Orientation ◽  
Deep Blue ◽  
Full Color ◽  
High Emission ◽  
White Oleds ◽  
Low Efficiency

Deep blue organic-emitting fluorophores are crucial for application in white lighting and full color flat-panel displays but emitters with high color quality and efficiency are rare. Herein, novel deep blue AIE luminogens (AIEgens) with various donor units and an acceptor of cyano substituted tetraphenylbenzene (TPB) cores were developed and used to fabricate non-doped deep blue and hybrid white organic light-emitting diodes (OLEDs). Benefiting from its high emission efficiency and high proportion of horizontally oriented dipoles in the film state, the non-doped deep blue device based on CN-TPB-TPA realized a maximum external quantum efficiency 7.27%, with a low efficiency roll-off and CIE coordinates of (0.15, 0.08). Moreover, efficient two-color hybrid warm white OLEDs (CIE<sub>x,y</sub> = 0.43, 0.45) were achieved using CN-TPB-TPA as the blue-emitting layer and phosphor doped host, which realized maximum current, power, external quantum efficiencies 58.0 cd A<sup>-1</sup>, 60.7 lm W<sup>-1</sup> and 19.1%, respectively. This work provides a general strategy to achieve high performance, stable deep blue and hybrid white OLEDs by construction of AIEgens with excellent horizontal orientation

New multifunctional phenanthroimidazole–phosphine oxide hybrids for high-performance red, green and blue electroluminescent devices

2014 ◽  
Vol 2 (33) ◽  
pp. 6817-6826 ◽  
Author(s):  
Kai Wang ◽  
Shipan Wang ◽  
Jinbei Wei ◽  
Shanyong Chen ◽  
Dong Liu ◽  
...  
Keyword(s):  
Phosphine Oxide ◽  
High Performance ◽  
Diphenylphosphine Oxide ◽  
Electroluminescent Devices ◽  
Highly Efficient ◽  
Deep Blue ◽  
Fluorescent Materials ◽  
Bipolar Charge

Two novel fluorescent materials containing phenanthroimidazole/diphenylphosphine oxide possessing bipolar charge-transporting property have been used not only as emitters to fabricate high-performance deep-blue OLEDs, but also as hosts to fabricate highly efficient green and red PhOLEDs.

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.

Ge-based bipolar small molecular host for highly efficient blue OLEDs: multiscale simulation of charge transport

2018 ◽  
Vol 6 (23) ◽  
pp. 6146-6152 ◽  
Author(s):  
Chuang Yao ◽  
Yezi Yang ◽  
Lei Li ◽  
Maolin Bo ◽  
Cheng Peng ◽  
...  
Keyword(s):  
Charge Transport ◽  
High Performance ◽  
Multiscale Simulation ◽  
Highly Efficient ◽  
Deep Blue ◽  
Blue Phosphorescent

Investigating three novel Ge-based high-performance bipolar hosts for deep blue phosphorescent OLEDs by multiscale simulation of charge transport.

Highly Efficient Deep Blue Fluorescence Emitter Based on Highly Conjugated Boron Structure

2019 ◽  
pp. 822
Author(s):  
Hanjong Yoo ◽  
Daehyun Ahn ◽  
Hyuna Lee ◽  
Juyoung Lee ◽  
Janghyuk Kwon
Keyword(s):  
Blue Fluorescence ◽  
Highly Efficient ◽  
Deep Blue

About the concept of synthesis of high-performance detection and positioning systems in the areas of elements falling, separated from strategic and space missiles on the trajectories of their flight during tests and regular operation

2018 ◽  
pp. 10-21
Author(s):  
G. G. Vokin
Keyword(s):  
High Performance ◽  
Physical Nature ◽  
Positioning Systems ◽  
Physical Conditions ◽  
Highly Efficient

The article describes the approach and topical issues of synthesis of highly efficient transportable systems for search and determination of coordinates in the areas of elements falling, separated from the missiles, taking into account the dislocation of pre-empted areas of fall and physical conditions in their territories. The principles of these systems are based on the rational integration of traditional and non-traditional information sensors of different physical nature, which record the moments of landing of separated parts of the missiles.

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