High-current stressing of organic light-emitting diodes with different electron-transport materials

2017 ◽  
Vol 71 ◽  
pp. 106-110 ◽  
Author(s):  
L. Liu ◽  
S. Li ◽  
Y.M. Zhou ◽  
L.Y. Liu ◽  
X.A. Cao
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
Light Emitting ◽  
Organic Light ◽  
Current Stressing

A novel electroplex host with dual triplet exciton up-converting channels suppressing triplet exciton induced degradation mechanisms in blue organic light-emitting diodes

2021 ◽  
Author(s):  
Ju Hui Yun ◽  
Jae-Min Kim ◽  
Won Jae Chung ◽  
Jun Seop Lim ◽  
Jun Yeob Lee ◽  
...  
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Organic Light Emitting Diodes ◽  
Degradation Mechanisms ◽  
Light Emitting ◽  
Type Host ◽  
Thermally Activated ◽  
Organic Light ◽  
Transport Type

A novel electroplex host with two triplet exciton up-converting channels for suppressed triplet exciton triggered degradation mechanisms was developed using an electron transport type host (n-type host) with thermally activated...

Highly efficient bluish green organic light-emitting diodes of iridium(iii) complexes with low efficiency roll-off

2018 ◽  
Vol 47 (22) ◽  
pp. 7587-7593 ◽  
Author(s):  
Ning Su ◽  
Zheng-Guang Wu ◽  
You-Xuan Zheng
Keyword(s):  
Current Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Organic Light ◽  
Bluish Green ◽  
Low Efficiency

Two efficient bluish green iridium(iii) complexes were applied as emitters in the organic light-emitting diodes, which showing high current efficiency of 58.17 cd A−1 and external quantum efficiency of 25.33% with low efficiency roll-off.

Utilization of double-sensitized structure toward achieving high performance green and red phosphorescent organic light-emitting diodes

2021 ◽  
Author(s):  
Shuaibing Li ◽  
Ruixia Wu ◽  
Kai Chen ◽  
Weidong Sun ◽  
Zhenzhen Li ◽  
...  
Keyword(s):  
Electron Transport ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Energy Levels ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Tert Butyl ◽  
Organic Light

In this work, iridium(III)bis(4-(tert-butyl)-2,6-diuoro-2,3-bipyridinne)acetylacetonate (FK306) was utilized as sensitizer and incorporated into both light-emitting and electron transport layers to compose double-sensitized system because of its low-lying energy levels and well...

Improved Efficiency and Its Roll-off of Organic Light-emitting Diodes with Double Electron Transport Layers

2015 ◽  
Vol 36 (9) ◽  
pp. 1053-1058
Author(s):  
陆勍 LU Qing ◽  
陈炳月 CHEN Bing-yue ◽  
杨魏强 YANG Wei-qiang ◽  
张彤蕾 ZHANG Tong-lei ◽  
吕昭月 LYU Zhao-yue
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Double Electron

High Tg fluoranthene-based electron transport materials for organic light-emitting diodes

2015 ◽  
Vol 39 (8) ◽  
pp. 6351-6357 ◽  
Author(s):  
Shiv Kumar ◽  
Satish Patil
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Thermally Stable ◽  
Light Emitting ◽  
Organic Light

Fluoranthene-based thermally stable electron transport materials for organic light-emitting diodes were synthesized and their performance in devices was investigated.

Efficient blue-green molecular organic light emitting diodes based on novel silole derivatives

2002 ◽  
Vol 725 ◽  
Author(s):  
Leonidas C. Palilis ◽  
Hideyuki Murata ◽  
Antti J. Mäkinen ◽  
Manabu Uchida ◽  
Zakya H. Kafafia
Keyword(s):  
Electron Transport ◽  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Operating Voltage ◽  
High Electron ◽  
Blue Fluorescence ◽  
Light Emitting ◽  
Organic Light

AbstractWe report on highly efficient molecular organic light-emitting diodes (MOLEDs) using two novel silole derivatives as emissive and electron transport materials. A silole derivative, namely 2,5-di-(3-biphenyl)-1,1-dimethyl-3,4-diphenylsilacyclopentadiene (PPSPP), which shows blue fluorescence with a high photoluminescence quantum yield of 85% in the solid state, was used as the emissive material. Another silole derivative, namely 2,5-bis-(2‘2“-bipyridin-6-yl)-1,1- dimethyl-3,4-diphenylsilacyclopentadiene (PyPySPyPy), that exhibits a non-dispersive high electron mobility of 2x10-4 cm2/Vsec was used as the electron transport material. MOLEDs using these two siloles and a common hole transport material show blue-green emission centered at 495 nm. This red-shifted electroluminescence (EL) band relative to the blue fluorescence of PPSPP is assigned to a PPSPP:NPB exciplex. A low operating voltage of 4.5 V was measured at a luminance of 100 cd/m2 and an EL quantum efficiency of 3.4% was achieved at 100 A/m2. To our knowledge, this is the highest EL quantum efficiency ever reported based on exciplex emission.

Arylvinylene phenanthroline derivatives for electron transport in blue organic light emitting diodes

2011 ◽  
Vol 12 (4) ◽  
pp. 666-676 ◽  
Author(s):  
Poopathy Kathirgamanathan ◽  
Sivagnanasundram Surendrakumar ◽  
Raghava Reddy Vanga ◽  
Seenivasagam Ravichandran ◽  
Juan Antipan-Lara ◽  
...  
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light
Sign in / Sign up

Export Citation Format

Share Document