scholarly journals Effects of steric encumbrance of iridium(iii) complex core on performance of solution-processed organic light emitting diodes

RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27552-27559
Author(s):  
Armands Ruduss ◽  
Valdis Kokars ◽  
Natalija Tetervenoka ◽  
Aivars Vembris ◽  
Kaspars Traskovskis
Keyword(s):  
Light Emitting Diodes ◽  
Charge Trapping ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Complex Core ◽  
Oled Performance

Attachment of bulky groups to the surface of irdium(iii) complex core obstructs its charge trapping ability and reduces OLED performance.

Designing an electron-transport layer for highly efficient, reliable, and solution-processed organic light-emitting diodes

2017 ◽  
Vol 5 (12) ◽  
pp. 3097-3106 ◽  
Author(s):  
Jin-Hoon Kim ◽  
Jin-Woo Park
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Solution Processed ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Oled Performance

When using PEIE doped with n-type dopants as the ETL, ϕ of the cathode decreased, significantly improving OLED performance.

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.

scholarly journals Through‐space charge transfer polymers for solution‐processed organic light‐emitting diodes

Aggregate ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 45-56
Author(s):  
Shiyang Shao ◽  
Lixiang Wang
Keyword(s):  
Charge Transfer ◽  
Space Charge ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

Development of efficient solution-processed red phosphorescent organic light-emitting diodes using carrier transport materials

2010 ◽  
Vol 160 (15-16) ◽  
pp. 1623-1626 ◽  
Author(s):  
Myungkwan Song ◽  
Jin Su Park ◽  
Chul-Hyun Kim ◽  
Jang Soo Kim ◽  
Yeong-Soon Gal ◽  
...  
Keyword(s):  
Carrier Transport ◽  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

scholarly journals Horizontal molecular orientation in solution-processed organic light-emitting diodes

2015 ◽  
Vol 106 (6) ◽  
pp. 063301 ◽  
Author(s):  
L. Zhao ◽  
T. Komino ◽  
M. Inoue ◽  
J.-H. Kim ◽  
J. C. Ribierre ◽  
...  
Keyword(s):  
Molecular Orientation ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light
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