High luminance efficiency and low voltage organic light-emitting diodes with NPB/LiF multiple layers

Fluorene and diphenylphosphine oxide were employed as peripheral groups to construct ternary host materials DBFxPODEFn with benzofuran as a core, which realized the low-voltage-driven efficient yellow phosphorescence organic light-emitting diodes.

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

Journal of Materials Chemistry C ◽

10.1039/c9tc03666k ◽

2019 ◽

Vol 7 (36) ◽

pp. 11293-11302 ◽

Cited By ~ 3

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.

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High-Luminance Top-Emitting Organic Light-Emitting Diodes Using Cs∕Al∕Au as the Semitransparent Multimetal Cathode

Journal of The Electrochemical Society ◽

10.1149/1.2759842 ◽

2007 ◽

Vol 154 (10) ◽

pp. J302 ◽

Cited By ~ 6

Author(s):

J. T. Lim ◽

C. H. Jeong ◽

J. H. Lee ◽

G. Y. Yeom ◽

E.-C. Shin ◽

...

Keyword(s):

Light Emitting Diodes ◽

Organic Light Emitting Diodes ◽

High Luminance ◽

Light Emitting ◽

Organic Light

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Low voltage organic light emitting diodes featuring doped phthalocyanine as hole transport material

Applied Physics Letters ◽

10.1063/1.121982 ◽

1998 ◽

Vol 73 (6) ◽

pp. 729-731 ◽

Cited By ~ 419

Author(s):

J. Blochwitz ◽

M. Pfeiffer ◽

T. Fritz ◽

K. Leo

Keyword(s):

Light Emitting Diodes ◽

Low Voltage ◽

Hole Transport ◽

Organic Light Emitting Diodes ◽

Light Emitting ◽

Organic Light

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Effects of Thickness of Organic and Multilayer Anode on Luminance Efficiency in Top-Emission Organic Light Emitting Diodes

Japanese Journal of Applied Physics ◽

10.1143/jjap.45.3717 ◽

2006 ◽

Vol 45 (4B) ◽

pp. 3717-3720 ◽

Cited By ~ 7

Author(s):

Shin-Ju Lin ◽

Han-Yi Ueng ◽

Fuh-Shyang Juang

Keyword(s):

Light Emitting Diodes ◽

Organic Light Emitting Diodes ◽

Light Emitting ◽

Organic Light ◽

Multilayer Anode ◽

Luminance Efficiency

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Effect of Li2O/Al Cathode in Alq3 Based Organic Light-Emitting Diodes

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2008.ic33 ◽

2008 ◽

Vol 8 (9) ◽

pp. 4684-4687 ◽

Cited By ~ 1

Author(s):

Eun Chul Shin ◽

Hui Chul Ahn ◽

Wone Keun Han ◽

Tae Wan Kim ◽

Won Jae Lee ◽

...

Keyword(s):

Power Efficiency ◽

Light Emitting Diodes ◽

Organic Light Emitting Diodes ◽

Light Emitting ◽

Turn On ◽

Organic Light ◽

Maximum Current ◽

The One ◽

Luminance Efficiency ◽

A Current

An effect of bilayer cathode Li2O/Al was studied in Alq3 based organic light-emitting diodes with a variation of Li2O layer thickness. The current-luminance-voltage characteristics of ITO/TPD/Alq3/Li2O/Al device were measured at ambient condition to investigate the effect of Li2O/Al. It was found that when the thickness of Li2O layer is in the range of 0.5∼1 nm, there are improvements in luminance, efficiency, and turn-on voltage of the device. A current density and a luminance are increased by about 100 times, a turn-on voltage is lowered from 6 V to 3 V, a maximum current efficiency is improved by a factor of 2.3, and a maximum power efficiency is improved by a factor of 3.2 for a device with a use of thin Li2O layer compared to those of the one without the Li2O layer. These improvements are thought to be due to a lowering of electron-barrier height for electron injection from the cathode to the emissive layer.

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