scholarly journals Benzoquinoline-based fluoranthene derivatives as electron transport materials for solution-processed red phosphorescent organic light-emitting diodes

RSC Advances ◽  
2017 ◽  
Vol 7 (45) ◽  
pp. 28520-28526 ◽  
Author(s):  
So-Ra Park ◽  
Dong Heon Shin ◽  
Sang-Mi Park ◽  
Min Chul Suh

A new electron transport material (ETM) with two fluoranthene and a benzoquinoline moiety was synthesized for the fabrication of solution-processed phosphorescent organic light-emitting diodes (PHOLEDs).

2017 ◽  
Vol 5 (12) ◽  
pp. 3097-3106 ◽  
Author(s):  
Jin-Hoon Kim ◽  
Jin-Woo Park

When using PEIE doped with n-type dopants as the ETL, ϕ of the cathode decreased, significantly improving OLED performance.


2017 ◽  
Vol 48 ◽  
pp. 377-381 ◽  
Author(s):  
Yolande Murat ◽  
Eric Langer ◽  
Jean-Paul Barnes ◽  
Jean-Yves Laurent ◽  
Guillaume Wantz ◽  
...  

2017 ◽  
Vol 5 (40) ◽  
pp. 10660-10667 ◽  
Author(s):  
Alejandro Lorente ◽  
Patrick Pingel ◽  
Hartmut Krüger ◽  
Silvia Janietz

A series of polystyrenes was developed as electron transport materials (ETMs) for solution processed organic light emitting diodes (OLEDs), containing dimesitylboryl (BMes2) and tetraphenylsilanyl in their side-chains.


RSC Advances ◽  
2020 ◽  
Vol 10 (22) ◽  
pp. 13215-13222
Author(s):  
Zijian Liu ◽  
WeiYe Zheng ◽  
Peng Wei ◽  
Zheng Xu ◽  
Dandan Song ◽  
...  

The performance is improved in solution-processed blue phosphorescent organic light emitting diodes (PhOLEDs) by adopting double electron transport layers (ETL) strategy.


Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 554
Author(s):  
Taeshik Earmme

Solution-processed blue phosphorescent organic light-emitting diodes (PHOLEDs) based on a single emission layer with small-molecule hole-transport materials (HTMs) are demonstrated. Various HTMs have been readily incorporated by solution-processing to enhance hole-transport properties of the polymer-based emission layer. Poly(N-vinylcarbazole) (PVK)-based blue emission layer with iridium(III) bis(4,6-(di-fluorophenyl)pyridinato-N,C2′)picolinate (FIrpic) triplet emitter blended with solution-processed 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) gave luminous efficiency of 21.1 cd/A at a brightness of 6220 cd/m2 with an external quantum efficiency (EQE) of 10.6%. Blue PHOLEDs with solution-incorporated HTMs turned out to be 50% more efficient compared to the reference device without HTMs. The high hole mobility, high triplet energy of HTM, and favorable energy transfer between HTM blended PVK host and FIrpic blue dopant were found to be important factors for achieving high device performance. The results are instructive to design and/or select proper hole-transport materials in solution-processed single emission layer.


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