Triarylamine siloxane anode functionalization/hole injection layers in high efficiency/high luminance small-molecule green- and blue-emitting organic light-emitting diodes

2007 ◽  
Vol 101 (9) ◽  
pp. 093101 ◽  
Author(s):  
Qinglan Huang ◽  
Jianfeng Li ◽  
Tobin J. Marks ◽  
Guennadi A. Evmenenko ◽  
Pulak Dutta
Keyword(s):  
Small Molecule ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Hole Injection ◽  
High Luminance ◽  
Light Emitting ◽  
Organic Light

High efficiency blue/green/yellow/red fluorescent organic light-emitting diodes sensitized by phosphors: general design rules and electroluminescence performance analysis

2019 ◽  
Vol 7 (36) ◽  
pp. 11293-11302 ◽  
Author(s):  
Jingwen Yao ◽  
Shian Ying ◽  
Qian Sun ◽  
Yanfeng Dai ◽  
Xianfeng Qiao ◽  
...  
Keyword(s):  
Performance Analysis ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
High Luminance ◽  
Design Rules ◽  
Light Emitting ◽  
General Design ◽  
Organic Light

Phosphor sensitized fluorescent organic light-emitting diodes realize high efficiency and low roll-off at high luminance.

High-Efficiency Solution-Processed Small Molecule Electrophosphorescent Organic Light-Emitting Diodes

2011 ◽  
Vol 23 (31) ◽  
pp. 3590-3596 ◽  
Author(s):  
Min Cai ◽  
Teng Xiao ◽  
Emily Hellerich ◽  
Ying Chen ◽  
Ruth Shinar ◽  
...  
Keyword(s):  
Small Molecule ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

Efficient and bright phosphorescent organic light-emitting diodes adopting MoO3/PEDOT:PSS as dual hole injection layers

2019 ◽  
Vol 33 (24) ◽  
pp. 1950284
Author(s):  
Nan Zhang ◽  
Yang Chen ◽  
Yan-Hui Wang
Keyword(s):  
Indium Tin Oxide ◽  
High Performance ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Acid Corrosion ◽  
Organic Light Emitting Diodes ◽  
Superior Performance ◽  
Hole Injection ◽  
Light Emitting ◽  
Organic Light

It has been demonstrated that high efficiency and brightness can be achieved in phosphorescent organic light-emitting diodes (PHOLEDs) by using molybdenum oxide (MoO3)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) as dual hole injection layers (HILs) on indium tin oxide (ITO) substrate. The dual HILs were simply fabricated by spin-coating PEDOT:PSS solution on a thin MoO3 layer deposited by vacuum thermal evaporation. This work reveals that PEDOT:PSS coating on MoO3 resulted in a smoother surface, simultaneously MoO3 lamella prevented acid corrosion of PEDOT:PSS on ITO. Meanwhile, with the insertion of PEDOT:PSS and MoO3 as HILs between anode and hole transporting layer (HTL), the energy barrier has been reduced and gave rise to effective hole injection. OLEDs with dual HILs resulted in the maximum current efficiency (CE) of 61.3 cd A[Formula: see text] and maximum luminance of 112200 cd cm[Formula: see text], which showed a superior performance compared to those devices with single HIL of PEDOT:PSS or MoO3. Our results proved the composition of PEDOT:PSS and MoO3 as HILs were beneficial for high performance OLEDs.

A high T g small-molecule arylamine derivative as a doped hole-injection/transport material for stable organic light-emitting diodes

2018 ◽  
Vol 58 ◽  
pp. 139-144 ◽  
Author(s):  
Xiao-Lan Huang ◽  
Jian-Hua Zou ◽  
Jun-Zhe Liu ◽  
Guang Jin ◽  
Jian-Bin Li ◽  
...  
Keyword(s):  
Small Molecule ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Hole Injection ◽  
Light Emitting ◽  
Organic Light

scholarly journals Ultrahigh-efficiency solution-processed simplified small-molecule organic light-emitting diodes using universal host materials

2016 ◽  
Vol 2 (10) ◽  
pp. e1601428 ◽  
Author(s):  
Tae-Hee Han ◽  
Mi-Ri Choi ◽  
Chan-Woo Jeon ◽  
Yun-Hi Kim ◽  
Soon-Ki Kwon ◽  
...  
Keyword(s):  
Small Molecule ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processing ◽  
Solution Processed ◽  
Promising Alternative ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials

Although solution processing of small-molecule organic light-emitting diodes (OLEDs) has been considered as a promising alternative to standard vacuum deposition requiring high material and processing cost, the devices have suffered from low luminous efficiency and difficulty of multilayer solution processing. Therefore, high efficiency should be achieved in simple-structured small-molecule OLEDs fabricated using a solution process. We report very efficient solution-processed simple-structured small-molecule OLEDs that use novel universal electron-transporting host materials based on tetraphenylsilane with pyridine moieties. These materials have wide band gaps, high triplet energy levels, and good solution processabilities; they provide balanced charge transport in a mixed-host emitting layer. Orange-red (~97.5 cd/A, ~35.5% photons per electron), green (~101.5 cd/A, ~29.0% photons per electron), and white (~74.2 cd/A, ~28.5% photons per electron) phosphorescent OLEDs exhibited the highest recorded electroluminescent efficiencies of solution-processed OLEDs reported to date. We also demonstrate a solution-processed flexible solid-state lighting device as a potential application of our devices.

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