scholarly journals Emitting-layer design of white organic light-emitting devices with single-host material

2009 ◽  
Vol 106 (2) ◽  
pp. 024503 ◽  
Author(s):  
Chih-Hung Hsiao ◽  
Jiun-Haw Lee
Keyword(s):  
Host Material ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Single Host ◽  
Organic Light Emitting Devices

Spirobiacridine-based Host Material for Highly Efficient Blue Phosphorescent Organic Light-emitting Devices

2020 ◽  
Vol 49 (3) ◽  
pp. 228-231 ◽  
Author(s):  
Hiroki Arai ◽  
Hisahiro Sasabe ◽  
Kohei Nakao ◽  
Yuki Masuda ◽  
Junji Kido
Keyword(s):  
Host Material ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Highly Efficient ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
Blue Phosphorescent

A Donor–Acceptor-type Host Material for Solution-processed Phosphorescent Organic Light-emitting Devices Showing High Efficiency

2014 ◽  
Vol 43 (12) ◽  
pp. 1935-1936 ◽  
Author(s):  
Chang-Hwa Jun ◽  
Yong-Jin Pu ◽  
Masahiro Igarashi ◽  
Takayuki Chiba ◽  
Hisahiro Sasabe ◽  
...  
Keyword(s):  
High Efficiency ◽  
Host Material ◽  
Solution Processed ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Type Host ◽  
Organic Light ◽  
Donor Acceptor ◽  
Organic Light Emitting Devices

Blue phosphorescent organic light-emitting devices based on carbazole/thioxanthene-S,S-dioxide with a high glass transition temperature

2015 ◽  
Vol 3 (24) ◽  
pp. 6192-6199 ◽  
Author(s):  
Young Pyo Jeon ◽  
Kyu Sung Kim ◽  
Kyeong Kyun Lee ◽  
In Kyu Moon ◽  
Dong Chul Choo ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Host Material ◽  
High Glass Transition Temperature ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
Blue Phosphorescent

A bipolar host material for blue organic light-emitting devices was synthesized by incorporating electron-donating carbazole and electron-accepting thioxanthene-S,S-dioxide into one molecule using a solventless green reaction.

scholarly journals Realization of Efficient Phosphorescent Organic Light-Emitting Devices Using Exciplex-Type Co-Host

Micromachines ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 51
Author(s):  
Lishuang Wu ◽  
Huiwen Xu ◽  
Huishan Yang
Keyword(s):  
High Performance ◽  
Delayed Fluorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Thermally Activated ◽  
Organic Light ◽  
Sufficient Energy ◽  
Single Host ◽  
Organic Light Emitting Devices

High-performance phosphorescent organic light-emitting devices with an exciplex-type co-host were fabricated. The co-host is constituted by 1,3,5-tris(N-phenylbenzimidazol-2-yl) benzene, and 4,4,4-tris (N-carbazolyl) triphenylamine, and has obvious virtues in constructing efficient devices because of the thermally activated delayed fluorescence (TADF) resulting from a reverse intersystem crossing (RISC) process. The highest external quantum efficiency and luminance are 14.60% and 100,900 cd/m2 for the optimal co-host device. For comparison, 9.22% and 25,450 cd/m2 are obtained for a device employing 4,4,4-tris (N-carbazolyl) triphenylamine as a single-host. Moreover, the efficiency roll-off is notably alleviated for the co-host device, indicated by much higher critical current density of 327.8 mA/cm2, compared to 120.8 mA/cm2 for the single-host device. The alleviation of excitons quenching resulting from the captured holes and electrons, together with highly sufficient energy transfer between the co-host and phosphorescent dopant account for the obvious boost in device performances.

Highly efficient single-layer organic light-emitting devices based on a bipolar pyrazine/carbazole hybrid host material

2014 ◽  
Vol 2 (14) ◽  
pp. 2488-2495 ◽  
Author(s):  
Yuan Liu ◽  
Lin-Song Cui ◽  
Mei-Feng Xu ◽  
Xiao-Bo Shi ◽  
Dong-Ying Zhou ◽  
...  
Keyword(s):  
Manufacturing Process ◽  
High Efficiency ◽  
Single Layer ◽  
Host Material ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Highly Efficient ◽  
Organic Light ◽  
Organic Light Emitting Devices

High efficiency blue (F), green (P), orange (P) and F–P hybrid warm white single-layer OLEDs are fabricated through a simple manufacturing process.

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