New carbazole-based host material for low-voltage and highly efficient red phosphorescent organic light-emitting diodes

2012 ◽  
Vol 22 (13) ◽  
pp. 6351 ◽  
Author(s):  
Jeonghun Kwak ◽  
Yi-Yeol Lyu ◽  
Hyunkoo Lee ◽  
Bonggoo Choi ◽  
Kookheon Char ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Low Voltage ◽  
Organic Light Emitting Diodes ◽  
Host Material ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light

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.

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.

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