All-Solution-Processed Organic Light-Emitting Diodes Based on Photostable Photo-cross-linkable Fluorescent Small Molecules

2016 ◽  
Vol 8 (25) ◽  
pp. 16207-16217 ◽  
Author(s):  
Lionel Derue ◽  
Simon Olivier ◽  
Denis Tondelier ◽  
Tony Maindron ◽  
Bernard Geffroy ◽  
...  
2019 ◽  
Vol 7 (13) ◽  
pp. 3934-3944 ◽  
Author(s):  
Valentin H. K. Fell ◽  
Neil J. Findlay ◽  
Benjamin Breig ◽  
Clarissa Forbes ◽  
Anto R. Inigo ◽  
...  

A series of red fluorescent materials (compounds 1–4), which each contain the symmetric fluorene–thiophene–BT–thiophene–fluorene core, is presented along with their performance in solution-processed OLED devices.


2018 ◽  
Vol 6 (21) ◽  
pp. 5577-5596 ◽  
Author(s):  
Tianyu Huang ◽  
Wei Jiang ◽  
Lian Duan

Molecular design and recent progress on solution-processed TADF materials in OLEDs, including small molecules, polymers and dendrimers, is reviewed.


Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 554
Author(s):  
Taeshik Earmme

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.


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