Analytical extraction of the recombination zone location in organic light-emitting diodes from emission pattern extrema

2010 ◽  
Vol 35 (20) ◽  
pp. 3366 ◽  
Author(s):  
Ariel Epstein ◽  
Nir Tessler ◽  
Pinchas D. Einziger
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Emission Pattern ◽  
Light Emitting ◽  
Organic Light ◽  
Recombination Zone

Direct monitoring of the recombination zone in highly efficient phosphorescent organic light-emitting diodes based on a high-doping concentration emitting system

2019 ◽  
Vol 7 (42) ◽  
pp. 13287-13293
Author(s):  
Jianan Xue ◽  
Jie Liang ◽  
Xinze Liu ◽  
Hao Zhang ◽  
Kaiqi Ye ◽  
...  
Keyword(s):  
Doping Concentration ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
High Doping Concentration ◽  
Organic Light ◽  
System P ◽  
Recombination Zone

The high-content bipolar phosphor (ppy)2Ir(dipba) can dominate the EL process and the recombination zone is almost broadened as wide as the whole EML in D4, leading to remarkably higher efficiency level of D4 than that of D2 based on (ppy)2Ir(acac).

scholarly journals The recombination zone adjusted by the gradient doping of TPA-DCPP for efficient and stable deep red organic light emitting diodes

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 24436-24442
Author(s):  
Qianmin Zhang ◽  
Jixin Jiang ◽  
Zheng Xu ◽  
Dandan Song ◽  
Bo Qiao ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Recombination Zone

Efficient deep red organic light-emitting diodes with 4.4% external quantum efficiency (EQE) and a stable electroluminescent spectrum at 674 nm.

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