Efficient pure-white organic light-emitting diodes with a solution-processed, binary-host employing single emission layer

2006 ◽  
Vol 88 (14) ◽  
pp. 141101 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Ming-Chen Sun ◽  
Hung-Hsing Chou ◽  
Chien-Hung Li
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Single Emission ◽  
Pure White

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 Regulation of Singlet and Triplet Excitons in a Single Emission Layer: Efficient Fluorescent/Phosphorescent Hybrid White Organic Light-Emitting Diodes

ACS Omega ◽  
2019 ◽  
Vol 4 (12) ◽  
pp. 15030-15042 ◽  
Author(s):  
Jayaraman Jayabharathi ◽  
Gnanasekaran Goperundevi ◽  
Venugopal Thanikachalam ◽  
Sekar Panimozhi
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
Light Emitting ◽  
Organic Light ◽  
Single Emission ◽  
Triplet Excitons

Influence of the Emission Layer Thickness on the Optoelectronic Properties of Solution Processed Organic Light-Emitting Diodes

ACS Photonics ◽  
2014 ◽  
Vol 1 (10) ◽  
pp. 968-973 ◽  
Author(s):  
Stefan Höfle ◽  
Tobias Lutz ◽  
Amos Egel ◽  
Felix Nickel ◽  
Siegfried W. Kettlitz ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Light Emitting Diodes ◽  
Optoelectronic Properties ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light
Sign in / Sign up

Export Citation Format

Share Document