Carbazolylphosphines and carbazolylphosphine oxides: facilely synthesized host materials with tunable mobilities and high triplet energy levels for blue phosphorescent OLEDs

2017 ◽  
Vol 5 (29) ◽  
pp. 7344-7351 ◽  
Author(s):  
Zifeng Zhao ◽  
Gang Yu ◽  
Qiaowen Chang ◽  
Xiaochen Liu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Energy Levels ◽  
Triplet Energy ◽  
Charge Mobility ◽  
Highly Efficient ◽  
Host Materials ◽  
Blue Phosphorescent

Selectively modulating the charge mobility of host materials by the oxidation of phosphines for highly efficient blue phosphorescent OLEDs.

Silane coupling di-carbazoles with high triplet energy as host materials for highly efficient blue phosphorescent devices

2009 ◽  
Vol 19 (34) ◽  
pp. 6143 ◽  
Author(s):  
Dehua Hu ◽  
Ping Lu ◽  
Chunlei Wang ◽  
He Liu ◽  
Huan Wang ◽  
...  
Keyword(s):  
Triplet Energy ◽  
Highly Efficient ◽  
Host Materials ◽  
Silane Coupling ◽  
Blue Phosphorescent

scholarly journals Two novel blue phosphorescent host materials containing phenothiazine-5,5-dioxide structure derivatives

2018 ◽  
Vol 14 ◽  
pp. 869-874 ◽  
Author(s):  
Feng-Ming Xie ◽  
Qingdong Ou ◽  
Qiang Zhang ◽  
Jiang-Kun Zhang ◽  
Guo-Liang Dai ◽  
...  
Keyword(s):  
Energy Levels ◽  
Fluorescence Emission ◽  
Blue Fluorescence ◽  
Triplet Energy ◽  
Lumo Energy ◽  
Host Materials ◽  
Homo And Lumo ◽  
Homo And Lumo Energy ◽  
Very High ◽  
Blue Phosphorescent

Two novel D–A bipolar blue phosphorescent host materials based on phenothiazine-5,5-dioxide: 3-(9H-carbazol-9-yl)-10-ethyl-10H-phenothiazine-5,5-dioxide (CEPDO) and 10-butyl-3-(9H-carbazol-9-yl)-10H-phenothiazine-5,5-dioxide (CBPDO) were synthesized and characterized. The photophysical, electrochemical and thermal properties were systematically investigated. CEPDO and CBPDO not only have a high triplet energy but also show a bipolar behavior. Moreover, their fluorescence emission peaks are in the blue fluorescence region at 408 nm and the fluorescence quantum efficiency (Φ) of CEPDO and CBPDO were 62.5% and 59.7%, respectively. Both CEPDO and CBPDO showed very high thermal stability with decomposition temperatures (T d) of 409 and 396 °C as well as suitable HOMO and LUMO energy levels. This preferable performance suggests that CEPDO and CBPDO are alternative bipolar host materials for the PhOLEDs.

P-152: Efficient Blue Phosphorescent OLEDs Employing Novel Oligocarbazoles as High-Triplet-Energy Host Materials

2007 ◽  
Vol 38 (1) ◽  
pp. 772-775 ◽  
Author(s):  
Ming-Han Tsai ◽  
Yun-Hua Hong ◽  
Chih-Hao Chang ◽  
Hai-Ching Su ◽  
Chung-Chih Wu ◽  
...  
Keyword(s):  
Triplet Energy ◽  
Host Materials ◽  
Blue Phosphorescent

scholarly journals Electron-Rich 4-Substituted Spirobifluorenes: Toward a New Family of High Triplet Energy Host Materials for High-Efficiency Green and Sky Blue Phosphorescent OLEDs

2017 ◽  
Vol 9 (7) ◽  
pp. 6194-6206 ◽  
Author(s):  
Cassandre Quinton ◽  
Sébastien Thiery ◽  
Olivier Jeannin ◽  
Denis Tondelier ◽  
Bernard Geffroy ◽  
...  
Keyword(s):  
High Efficiency ◽  
Triplet Energy ◽  
New Family ◽  
Host Materials ◽  
Blue Phosphorescent

Di(biphenyl)silane and carbazole based bipolar host materials for highly efficient blue phosphorescent OLEDs

2017 ◽  
Vol 136 ◽  
pp. 8-16 ◽  
Author(s):  
Gyeong Woo Kim ◽  
Doo Ri Yang ◽  
Yong Cheol Kim ◽  
Hye In Yang ◽  
Jin Guo Fan ◽  
...  
Keyword(s):  
Highly Efficient ◽  
Host Materials ◽  
Blue Phosphorescent

A high triplet energy, high thermal stability oxadiazole derivative as the electron transporter for highly efficient red, green and blue phosphorescent OLEDs

2015 ◽  
Vol 3 (7) ◽  
pp. 1491-1496 ◽  
Author(s):  
Cheng-Hung Shih ◽  
P. Rajamalli ◽  
Cheng-An Wu ◽  
Ming-Jai Chiu ◽  
Li-Kang Chu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Electron Mobility ◽  
Energy Gap ◽  
High Thermal Stability ◽  
Triplet Energy ◽  
Highly Efficient ◽  
Blue Phosphorescent

A high glass transition, triplet energy gap and electron mobility material, TPOTP, is readily synthesized. It can serve as an efficient universal electron transporter and exciton blocker for blue, green and red phosphorescent OLEDs.

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