High Tg small-molecule phenanthroline derivatives as a potential universal hole-blocking layer for high power-efficiency and stable organic light-emitting diodes

2017 ◽  
Vol 5 (9) ◽  
pp. 2329-2336 ◽  
Author(s):  
Xin-Feng Wei ◽  
Wan-Yi Tan ◽  
Jian-Hua Zou ◽  
Qing-Xun Guo ◽  
Dong-Yu Gao ◽  
...  
Keyword(s):  
Power Efficiency ◽  
Organic Light Emitting Diodes ◽  
Blocking Layer ◽  
Structure Property ◽  
Light Emitting ◽  
High Performing ◽  
Structure Property Relationships ◽  
Organic Light ◽  
Hole Blocking Layer ◽  
High Power Efficiency

The molecular structure–property relationships are presented for new series of high-performing hole-blocking phenanthroline compounds.

Interface and thickness tuning for blade coated small-molecule organic light-emitting diodes with high power efficiency

2013 ◽  
Vol 114 (12) ◽  
pp. 123101 ◽  
Author(s):  
Yu-Fan Chang ◽  
Yu-Chian Chiu ◽  
Hao-Wen Chang ◽  
Yi-Siang Wang ◽  
Yi-Lun Shih ◽  
...  
Keyword(s):  
Small Molecule ◽  
High Power ◽  
Power Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
High Power Efficiency

Efficiency Improvement of Organic Light Emitting Diodes with Co-Deposited Hole Blocking Layer

2010 ◽  
Vol 297-301 ◽  
pp. 561-566
Author(s):  
C.H. Liu ◽  
C.H. Tesng ◽  
C.P. Cheng
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Blocking Layer ◽  
Efficiency Improvement ◽  
Mixing Rate ◽  
Light Emitting ◽  
Organic Light ◽  
Color Coordinate ◽  
Hole Blocking Layer

There are several kinds of methods in improving the efficiency of organic light emitting diodes (OLEDs). In this work, we used a co-deposited hole blocking layer to improve the efficiency of OLEDs. The structure of the component is: ITO/ MTDATA(15 nm) /NPB(40 nm) /BCP(10 nm) /BCP: Alq(15 nm) /LiF(0.7 nm)/ Al(180 nm). We changed the mixing rate of the BCP:Alq layer to be capable of hole blocking and electron transporting, and then improved the efficiency of OLEDs. Finally, we prepared white light OLED with doping Rubrene in NPB. When the concentration of the NPB: Rubrene layer was 2.0 wt.%, the device could emit the white light at 100 mA/cm2, and the luminance was above 2300 cd/m2, and the color coordinate was x = 0.36, y = 0.37.

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