Trisdibenzofuran-derived electron transport type exciton blocking materials for improved efficiency and lifetime in blue phosphorescent organic light-emitting diodes

2018 ◽  
Vol 6 (2) ◽  
pp. 320-325 ◽  
Author(s):  
Ju Hui Yun ◽  
Yu Jin Kang ◽  
Si Hyun Han ◽  
Jun Yeob Lee
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Blue Phosphorescent ◽  
Transport Type

Two trisdibenzofuran-derived compounds, 4,2′:8′,4′′-terdibenzo[b,d]furan (TDBF) and [4,2′:8′,4′′-terdibenzo[b,d]furan]-6,6′′-dicarbonitrile (CNTDBF), were developed and investigated as electron transport type exciton blocking materials of blue phosphorescent organic light-emitting diodes (PhOLEDs).

High triplet energy exciplex host derived from a CN modified carbazole based n-type host for improved efficiency and lifetime in blue phosphorescent organic light-emitting diodes

2018 ◽  
Vol 6 (38) ◽  
pp. 10308-10314 ◽  
Author(s):  
Su Kyeong Shin ◽  
Si Hyun Han ◽  
Jun Yeob Lee
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Triplet Energy ◽  
Light Emitting ◽  
Type Host ◽  
Organic Light ◽  
Blue Phosphorescent ◽  
Transport Type

High triplet energy exciplexes which can improve the lifetime of blue phosphorescent organic light-emitting diodes were developed by mixing a carbazole based hole transport type host with a CN modified carbazole based electron transport type host.

A novel electroplex host with dual triplet exciton up-converting channels suppressing triplet exciton induced degradation mechanisms in blue organic light-emitting diodes

2021 ◽  
Author(s):  
Ju Hui Yun ◽  
Jae-Min Kim ◽  
Won Jae Chung ◽  
Jun Seop Lim ◽  
Jun Yeob Lee ◽  
...  
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Organic Light Emitting Diodes ◽  
Degradation Mechanisms ◽  
Light Emitting ◽  
Type Host ◽  
Thermally Activated ◽  
Organic Light ◽  
Transport Type

A novel electroplex host with two triplet exciton up-converting channels for suppressed triplet exciton triggered degradation mechanisms was developed using an electron transport type host (n-type host) with thermally activated...

Long lifetime blue phosphorescent organic light-emitting diodes with an exciton blocking layer

2015 ◽  
Vol 3 (18) ◽  
pp. 4640-4645 ◽  
Author(s):  
Jeong-A Seo ◽  
Sang Kyu Jeon ◽  
Myoung Seon Gong ◽  
Jun Yeob Lee ◽  
Chang Ho Noh ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Blocking Layer ◽  
Triplet Energy ◽  
Light Emitting ◽  
Organic Light ◽  
Long Lifetime ◽  
Blue Phosphorescent ◽  
Transport Type

An acridine derived compound, 9,9-dimethyl-10-(9-phenyl-9H-carbazol-3-yl)-9,10-dihydroacridine (PCZAC), was newly designed as a hole transport type high triplet energy material for application as a hole transport type exciton blocking layer of blue phosphorescent organic light-emitting diodes.

New sulfone-based electron-transport materials with high triplet energy for highly efficient blue phosphorescent organic light-emitting diodes

2014 ◽  
Vol 2 (47) ◽  
pp. 10129-10137 ◽  
Author(s):  
Soon Ok Jeon ◽  
Taeshik Earmme ◽  
Samson A. Jenekhe
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Triplet Energy ◽  
High Quantum Efficiency ◽  
High Current Efficiency ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Blue Phosphorescent

Highly efficient blue phosphorescent organic light emitting diodes have been developed using novel sulfone-based electron transport materials (SPDP, SPDQ, and SPPP) with high triplet energy. The blue phosphorescent devices combine high quantum efficiency (19.6%) with high current efficiency (33.6 cd A−1).

Effect of electron transport layer engineering based on blue phosphorescent organic light-emitting diodes

Displays ◽  
2013 ◽  
Vol 34 (5) ◽  
pp. 396-398 ◽  
Author(s):  
Bo Young Kim ◽  
Seok Jae Lee ◽  
Ja-Ryong Koo ◽  
Song Eun Lee ◽  
Kum Hee Lee ◽  
...  
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Light Emitting ◽  
Organic Light ◽  
Blue Phosphorescent
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