Improved operational lifetime of deep-red phosphorescent organic light-emitting diodes using a benzothienobenzothiophene (BTBT)-based p-type host material

2021 ◽  
Author(s):  
Daiki Saito ◽  
Hisahiro Sasabe ◽  
Takayoshi Kikuchi ◽  
Takashi Ito ◽  
Hisaki Tsuneyama ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Host Material ◽  
Light Emitting ◽  
Type Host ◽  
Highly Efficient ◽  
Organic Light ◽  
Operational Lifetime ◽  
P Type

Highly efficient and stable deep red OLED is successfully developed by using a BTBT-based p-type host material. This OLED exhibits higher efficiency, and over ×5 longer lifetime than that based on the conventional p-type host material, NPD.

Improved positive polaron stability of the p-type host for long lifetime in phosphorescent organic light-emitting diodes

2021 ◽  
Author(s):  
Ji Ae Kang ◽  
Jun Seop Lim ◽  
Jun Yeob Lee
Keyword(s):  
Light Emitting Diodes ◽  
Oxidation Stability ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Type Host ◽  
Organic Light ◽  
Long Lifetime ◽  
Device Lifetime ◽  
P Type ◽  
Polaron Stability

Long lifetime is one of requirements for commercialization of organic light-emitting diodes (OLEDs). In this paper, we improved the device lifetime of phosphorescent OLEDs by enhancing oxidation stability of the...

A simple carbazole-N-benzimidazole bipolar host material for highly efficient blue and single layer white phosphorescent organic light-emitting diodes

2014 ◽  
Vol 2 (14) ◽  
pp. 2466-2469 ◽  
Author(s):  
Biao Pan ◽  
Bo Wang ◽  
Yixing Wang ◽  
Peng Xu ◽  
Lei Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Single Layer ◽  
Organic Light Emitting Diodes ◽  
Host Material ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

A new simple carbazole-N-benzimidazole bipolar luminogen mNBICz was constructed and utilized as a host for an FIrpic-doped blue single layer white device.

Highly efficient orange and deep-red organic light emitting diodes with long operational lifetimes using carbazole–quinoline based bipolar host materials

2014 ◽  
Vol 2 (30) ◽  
pp. 6183-6191 ◽  
Author(s):  
Chin-Hsien Chen ◽  
Lun-Chia Hsu ◽  
P. Rajamalli ◽  
Yu-Wei Chang ◽  
Fang-Iy Wu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Host Materials ◽  
Operational Lifetime

A new series of carbazole–quinoline based host materials for orange and red PhOLEDs are synthesized. A record-high efficiency with long operational lifetime is achieved.

Sign in / Sign up

Export Citation Format

Share Document