Doped hole injection bilayers for solution processable blue phosphorescent organic light-emitting diodes

2016 ◽  
Vol 4 (27) ◽  
pp. 6570-6574 ◽  
Author(s):  
Bo Wang ◽  
Lei Zhang ◽  
Yun Hu ◽  
Xiao-Bo Shi ◽  
Zhao-Kui Wang ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Hole Injection ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Maximum Current ◽  
Solution Processable ◽  
Blue Phosphorescent

A hole injection bilayer was developed for solution processed blue phosphorescent OLEDs with a maximum current efficiency of 16.7 cd A−1.

scholarly journals Effect of PEDOT:PSS on the performance of solution-processed blue phosphorescent organic light-emitting diodes with an exciplex host

2022 ◽  
Author(s):  
Jaber Saghaei ◽  
Manikandan Koodalingam ◽  
Paul L. Burn ◽  
Ian R. Gentle ◽  
Almantas Pivrikas ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Hole Injection ◽  
Solution Processed ◽  
Light Emitting ◽  
Hole Injection Layer ◽  
Organic Light ◽  
Blue Phosphorescent

The acidity of the PEDOT:PSS hole injection layer was found to effect the performance of efficient solution-processed organic light-emitting diodes incorporating a light-emitting layer composed of a blue phosphorescent dendrimer:exciplex host blend.

scholarly journals Solution-Processed Efficient Blue Phosphorescent Organic Light-Emitting Diodes (PHOLEDs) Enabled by Hole-Transport Material Incorporated Single Emission Layer

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 554
Author(s):  
Taeshik Earmme
Keyword(s):  
Light Emitting Diodes ◽  
Blue Emission ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Single Emission ◽  
Blue Phosphorescent

Solution-processed blue phosphorescent organic light-emitting diodes (PHOLEDs) based on a single emission layer with small-molecule hole-transport materials (HTMs) are demonstrated. Various HTMs have been readily incorporated by solution-processing to enhance hole-transport properties of the polymer-based emission layer. Poly(N-vinylcarbazole) (PVK)-based blue emission layer with iridium(III) bis(4,6-(di-fluorophenyl)pyridinato-N,C2′)picolinate (FIrpic) triplet emitter blended with solution-processed 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) gave luminous efficiency of 21.1 cd/A at a brightness of 6220 cd/m2 with an external quantum efficiency (EQE) of 10.6%. Blue PHOLEDs with solution-incorporated HTMs turned out to be 50% more efficient compared to the reference device without HTMs. The high hole mobility, high triplet energy of HTM, and favorable energy transfer between HTM blended PVK host and FIrpic blue dopant were found to be important factors for achieving high device performance. The results are instructive to design and/or select proper hole-transport materials in solution-processed single emission layer.

Stable solution processed hole injection material for organic light-emitting diodes

2014 ◽  
Vol 15 (10) ◽  
pp. 2513-2517 ◽  
Author(s):  
Szuheng Ho ◽  
Chaoyu Xiang ◽  
Rui Liu ◽  
Neetu Chopra ◽  
Mathew Mathai ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Stable Solution ◽  
Organic Light Emitting Diodes ◽  
Hole Injection ◽  
Solution Processed ◽  
Light Emitting ◽  
Injection Material ◽  
Organic Light

Highly efficient blue phosphorescent iridium(iii) complexes with various ancillary ligands for partially solution-processed organic light-emitting diodes

2017 ◽  
Vol 5 (36) ◽  
pp. 9306-9314 ◽  
Author(s):  
Peng Tao ◽  
Yuanbing Zhang ◽  
Jiong Wang ◽  
Liuwei Wei ◽  
Hongxin Li ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Ancillary Ligands ◽  
Light Emitting ◽  
Chemical Structures ◽  
Highly Efficient ◽  
Organic Light ◽  
Blue Phosphorescent

Excellent blue/pure blue iridium(iii) phosphors with high ΦPL, narrow FWHMs and robust chemical structures are designed for partially solution-processed OLEDs.

Asymmetric Sky-Blue Thermally Activated Delayed Fluorescence Emitters Bearing Tris(triazolo)triazine Moiety for Solution Processable Organic Light-Emitting Diodes

2022 ◽  
Author(s):  
Zhou Fang ◽  
Shengyue Wang ◽  
Junxu Liao ◽  
Xinrui Chen ◽  
Yuanyuan Zhu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light ◽  
Solution Processable

Efficient blue thermally activated delayed fluorescence (TADF) emitter is still a challenge in solution-processed organic light-emitting diodes (OLEDs). In this contribution, two asymmetric molecules of TTT-Ac and TTT-2Ac were synthesized...

Water-soluble pH neutral triazatruxene-based small molecules as hole injection materials for solution-processable organic light-emitting diodes

2019 ◽  
Vol 7 (26) ◽  
pp. 7900-7905 ◽  
Author(s):  
Yonghong Chen ◽  
Xiaofu Wu ◽  
Yang Liu ◽  
Liang Chen ◽  
Hua Li ◽  
...  
Keyword(s):  
Small Molecules ◽  
Light Emitting Diodes ◽  
Water Soluble ◽  
Organic Light Emitting Diodes ◽  
Hole Injection ◽  
Light Emitting ◽  
Organic Light ◽  
Solution Processable ◽  
Injection Materials

Water-soluble and pH neutral triazatruxene-based small molecules have been used as hole injection materials in solution-processable organic light-emitting diodes, achieving even better performance compared with PEDOT:PSS.

Sign in / Sign up

Export Citation Format

Share Document