Peripheral Cyanohexyl Substituent in Wide Bandgap Polymer: Increase the Electron Injection Property for Blue Phosphorescence Light Emitting Device

2011 ◽  
Vol 32 (18) ◽  
pp. 1467-1471 ◽  
Author(s):  
Dehua Hu ◽  
Gang Cheng ◽  
Ping Lu ◽  
He Liu ◽  
Fangzhong Shen ◽  
...  
Keyword(s):  
Electron Injection ◽  
Wide Bandgap ◽  
Light Emitting ◽  
Injection Property ◽  
Wide Bandgap Polymer

Electrical characteristics of light-emitting electrochemical cells based on a wide bandgap polymer

2000 ◽  
Vol 61 (1) ◽  
pp. 266-271 ◽  
Author(s):  
M. Sampietro ◽  
R. Sotgiu ◽  
F. P. Wenzl ◽  
L. Holzer ◽  
S. Tasch ◽  
...  
Keyword(s):  
Wide Bandgap ◽  
Electrochemical Cells ◽  
Electrical Characteristics ◽  
Light Emitting ◽  
Wide Bandgap Polymer

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.

Efficient electron injection in blue-emitting polymer light-emitting diodes with LiF/Ca/Al cathodes

2001 ◽  
Vol 79 (2) ◽  
pp. 174-176 ◽  
Author(s):  
T. M. Brown ◽  
R. H. Friend ◽  
I. S. Millard ◽  
D. J. Lacey ◽  
J. H. Burroughes ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Electron Injection ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes

A Series of Lithium Pyridyl Phenolate Complexes with a Pendant Pyridyl Group for Electron-Injection Layers in Organic Light-Emitting Devices

2017 ◽  
Vol 9 (46) ◽  
pp. 40541-40548 ◽  
Author(s):  
Satoru Ohisa ◽  
Taichiro Karasawa ◽  
Yuichiro Watanabe ◽  
Tatsuya Ohsawa ◽  
Yong-Jin Pu ◽  
...  
Keyword(s):  
Electron Injection ◽  
Pyridyl Group ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Silicon-based light-emitting materials: implanted SiO2 films and wide-bandgap a-Si:H

2001 ◽  
Author(s):  
Ivan Pelant ◽  
Katerina Luterova ◽  
Petr Fojtik ◽  
Jean-Luc Rehspringer ◽  
Dominique Muller ◽  
...  
Keyword(s):  
Wide Bandgap ◽  
Light Emitting ◽  
Sio2 Films ◽  
Silicon Based
Sign in / Sign up

Export Citation Format

Share Document