Low resistance and high work-function WO3/Ag/MoO2multilayer as transparent anode for bright organic light-emitting diodes

2015 ◽  
Vol 54 (3S) ◽  
pp. 03CC01 ◽  
Author(s):  
Shun-Wei Liu ◽  
Chih-Chien Lee ◽  
An-Kuei Cheng ◽  
Chun-Feng Lin ◽  
Ya-Ze Li ◽  
...  
Keyword(s):  
Work Function ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
High Work Function ◽  
Low Resistance ◽  
Organic Light ◽  
High Work

A printed aluminum cathode with low sintering temperature for organic light-emitting diodes

RSC Advances ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 608-611 ◽  
Author(s):  
Fei Fei ◽  
Jinyong Zhuang ◽  
Weichen Wu ◽  
Minshun Song ◽  
Dongyu Zhang ◽  
...  
Keyword(s):  
Work Function ◽  
Light Emitting Diodes ◽  
Sintering Temperature ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Low Resistance ◽  
Organic Light ◽  
Low Sintering Temperature

A printed Al film with low resistance and low work function has been demonstrated, which was successfully used as the cathode in OLEDs. The Al film was achieved through an Al precursor ink under low sintering temperature (80 °C for 30 s).

scholarly journals Unravelling the electron injection/transport mechanism in organic light-emitting diodes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tsubasa Sasaki ◽  
Munehiro Hasegawa ◽  
Kaito Inagaki ◽  
Hirokazu Ito ◽  
Kazuma Suzuki ◽  
...  
Keyword(s):  
Work Function ◽  
Transport Mechanism ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Electron Injection ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Materials Used

AbstractAlthough significant progress has been made in the development of light-emitting materials for organic light-emitting diodes along with the elucidation of emission mechanisms, the electron injection/transport mechanism remains unclear, and the materials used for electron injection/transport have been basically unchanged for more than 20 years. Here, we unravelled the electron injection/transport mechanism by tuning the work function near the cathode to about 2.0 eV using a superbase. This extremely low-work function cathode allows direct electron injection into various materials, and it was found that organic materials can transport electrons independently of their molecular structure. On the basis of these findings, we have realised a simply structured blue organic light-emitting diode with an operational lifetime of more than 1,000,000 hours. Unravelling the electron injection/transport mechanism, as reported in this paper, not only greatly increases the choice of materials to be used for devices, but also allows simple device structures.

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