scholarly journals Effect of end group functionalisation of small molecules featuring the fluorene–thiophene–benzothiadiazole motif as emitters in solution-processed red and orange organic light-emitting diodes

2019 ◽  
Vol 7 (13) ◽  
pp. 3934-3944 ◽  
Author(s):  
Valentin H. K. Fell ◽  
Neil J. Findlay ◽  
Benjamin Breig ◽  
Clarissa Forbes ◽  
Anto R. Inigo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Fluorescent Materials ◽  
End Group

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.

Recent progress in solution processable TADF materials for organic light-emitting diodes

2018 ◽  
Vol 6 (21) ◽  
pp. 5577-5596 ◽  
Author(s):  
Tianyu Huang ◽  
Wei Jiang ◽  
Lian Duan
Keyword(s):  
Small Molecules ◽  
Recent Progress ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Solution Processable

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

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 ◽  
...  
Keyword(s):  
Small Molecules ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

Thermally cross-linkable thermally activated delayed fluorescent materials for efficient blue solution-processed organic light-emitting diodes

2016 ◽  
Vol 4 (38) ◽  
pp. 8973-8979 ◽  
Author(s):  
Kaiyong Sun ◽  
Xiafei Xie ◽  
Yao Liu ◽  
Wei Jiang ◽  
Xinxin Ban ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light ◽  
Fluorescent Materials ◽  
Blue Solution

The thermally cross-linkable materials reported here provide a novel route toward highly efficient 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.

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