A new benzimidazole/carbazole hybrid bipolar material for highly efficient deep-blue electrofluorescence, yellow–green electrophosphorescence, and two-color-based white OLEDs

2010 ◽  
Vol 20 (45) ◽  
pp. 10113 ◽  
Author(s):  
Wen-Yi Hung ◽  
Liang-Chen Chi ◽  
Wei-Jiun Chen ◽  
You-Ming Chen ◽  
Shu-Hua Chou ◽  
...  
Keyword(s):  
Highly Efficient ◽  
Deep Blue ◽  
White Oleds

Deep blue fluorophores incorporating sulfone-locked triphenylamine: the key for highly efficient fluorescence–phosphorescence hybrid white OLEDs with simplified structure

2015 ◽  
Vol 3 (27) ◽  
pp. 6986-6996 ◽  
Author(s):  
Yunchuan Li ◽  
Xiang-Long Li ◽  
Xinyi Cai ◽  
Dongcheng Chen ◽  
Xin Liu ◽  
...  
Keyword(s):  
Highly Efficient ◽  
Deep Blue ◽  
White Oleds

Deep blue fluorophors incorporating sulfone-locked triphenylamine were developed for hybrid white OLEDs.

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

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

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,...

scholarly journals 45.2: Highly Efficient Fluorescent and TADF Emitters for Deep‐Blue OLEDs

2021 ◽  
Vol 52 (S1) ◽  
pp. 298-298
Author(s):  
Matthias Budzynski ◽  
Christian Kasparek ◽  
Thomas Baumann ◽  
Julian Ochsmann
Keyword(s):  
Highly Efficient ◽  
Deep Blue

Unraveling the Important Role of High‐Lying Triplet–Lowest Excited Singlet Transitions in Achieving Highly Efficient Deep‐Blue AIE‐Based OLEDs

2021 ◽  
Vol 33 (11) ◽  
pp. 2006953
Author(s):  
Xiaomin Guo ◽  
Peisen Yuan ◽  
Jianzhong Fan ◽  
Xianfeng Qiao ◽  
Dezhi Yang ◽  
...  
Keyword(s):  
Excited Singlet ◽  
Highly Efficient ◽  
Deep Blue

Highly efficient deep-blue fluorescent OLEDs based on anthracene derivatives with a triplet–triplet annihilation mechanism

2021 ◽  
Author(s):  
Zilong Wu ◽  
Shaoxin Song ◽  
Xiangyu Zhu ◽  
Hao Chen ◽  
Jiajin Chi ◽  
...  
Keyword(s):  
Quantum Yields ◽  
Carbazole Derivatives ◽  
Highly Efficient ◽  
Deep Blue ◽  
Anthracene Derivatives ◽  
Triplet Triplet Annihilation

New deep-blue molecules compromised of tert-butyl modified anthracene, p-benzonitrile, and carbazole derivatives provide external quantum yields of 7.03% and 7.28% in non-doped and doped deep-blue OLEDs, respectively.

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