Solution processed single-emission layer white polymer light-emitting diodes with high color quality and high performance from a poly(N-vinyl)carbazole host

2015 ◽  
Vol 17 (14) ◽  
pp. 8860-8869 ◽  
Author(s):  
Shang-Hui Ye ◽  
Tian-Qing Hu ◽  
Zhou Zhou ◽  
Min Yang ◽  
Mei-Han Quan ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Processing Method ◽  
Simple Solution ◽  
Iridium Complex ◽  
Emission Layer ◽  
Light Emitting ◽  
Color Quality ◽  
Polymer Light Emitting Diodes ◽  
Single Emission

High color quality white phosphorescent OLEDs were fabricated using a simple solution processing method comprising red/green/blue/orange iridium complex.

Color stable white polymer light-emitting diodes with single emission layer

2010 ◽  
Vol 160 (7-8) ◽  
pp. 835-838 ◽  
Author(s):  
Sun Hee Kim ◽  
Youngeup Jin ◽  
Jin Young Yu ◽  
Jinwoo Kim ◽  
Suhee Song ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Emission Layer ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
Single Emission

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 single-layer blue polymer light-emitting diodes based on hole-transporting group substituted poly(fluorene-co-dibenzothiophene-S,S-dioxide)

2017 ◽  
Vol 5 (37) ◽  
pp. 9680-9686 ◽  
Author(s):  
Feng Peng ◽  
Na Li ◽  
Lei Ying ◽  
Wenkai Zhong ◽  
Ting Guo ◽  
...  
Keyword(s):  
Blue Light ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Random Copolymer ◽  
Hole Transport ◽  
Light Emitting ◽  
Hole Transporting ◽  
Polymer Light Emitting Diodes ◽  
Copolymer Poly

We developed a series of high-performance blue light-emitting polymers that contain hole-transport moieties comprising carbazole or triphenylamine substituents in the side chains of random copolymer poly(fluorene-co-dibenzothiophene-S,S-dioxide) (PFSO).

Organic-Oxide Cathode Buffer Layer in Fabricating High-Performance Polymer Light-Emitting Diodes

2008 ◽  
Vol 18 (19) ◽  
pp. 3036-3042 ◽  
Author(s):  
Tsung-Hsun Lee ◽  
Jung-Chun-Andrew Huang ◽  
Georgi L'vovich Pakhomov ◽  
Tzung-Fang Guo ◽  
Ten-Chin Wen ◽  
...  
Keyword(s):  
Buffer Layer ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Oxide Cathode ◽  
High Performance Polymer ◽  
Polymer Light Emitting Diodes ◽  
Cathode Buffer Layer

Improvement of efficiency and its roll-off at high brightness in white organic light-emitting diodes by strategically managing triplet excitons in the emission layer

2018 ◽  
Vol 6 (40) ◽  
pp. 10793-10803 ◽  
Author(s):  
Shian Ying ◽  
Dezhi Yang ◽  
Xianfeng Qiao ◽  
Yanfeng Dai ◽  
Qian Sun ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Emission Layer ◽  
High Brightness ◽  
Light Emitting ◽  
Organic Light ◽  
Low Efficiency ◽  
Triplet Excitons

High-performance WOLEDs realizing high efficiency and low efficiency roll-off simultaneously were achieved by strategically managing triplet excitons in the emission layer.

Sign in / Sign up

Export Citation Format

Share Document