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.

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.

Highly efficient blue phosphorescent organic light-emitting diodes with low operation voltage

2021 ◽  
Vol 142 ◽  
pp. 107229
Author(s):  
Qi Zhu ◽  
Liang Zhou ◽  
Weiqiang Liu ◽  
Yingjie Cui ◽  
Ruixia Wu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Blue Phosphorescent

Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter

2011 ◽  
Vol 161 (1-2) ◽  
pp. 148-152 ◽  
Author(s):  
Yu-Chiang Chao ◽  
Sheng-Yang Huang ◽  
Chun-Yu Chen ◽  
Yu-Fan Chang ◽  
Hsin-Fei Meng ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Triplet Emitter

scholarly journals Highly efficient solution-processed white organic light-emitting diodes based on novel copolymer single layer

2012 ◽  
Vol 161 (23-24) ◽  
pp. 2580-2584 ◽  
Author(s):  
Carmen Coya ◽  
Angel Luis Álvarez ◽  
Mar Ramos ◽  
Rafael Gómez ◽  
Carlos Seoane ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

Highly-efficient solution-processed deep-red organic light-emitting diodes based on heteroleptic Ir(III) complexes with effective heterocyclic Schiff base as ancillary ligand

2020 ◽  
Vol 86 ◽  
pp. 105885
Author(s):  
Meha J. Prajapati ◽  
Rohit Ashok Kumar Yadav ◽  
Sujith Sudheendran Swayamprabha ◽  
Deepak Kumar Dubey ◽  
Jaydip D. Solanki ◽  
...  
Keyword(s):  
Schiff Base ◽  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Ancillary Ligand ◽  
Solution Processed ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light
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