Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7701668 | Organic Electronics | 2015 | 10 Pages |
Abstract
A series of new blue emissive materials based on the conjugates of highly fluorescent diaryl anthracene and electron-transporting triphenylimidazole moieties: were designed and synthesized successfully. These materials exhibit good film-forming properties and excellent thermal stabilities. With respect to the three layer device 2 using 1-NaCBI as the emitting layer, its maximum current efficiency reaches 3.06 cd Aâ1 with Commission Internationale del'Eclairage (CIE) coordinates of (0.149, 0.092). More interestingly, sky blue doped device 5 based on 1-NaCPI achieved a maximum current efficiency of 15.53 cd Aâ1 and a maximum external quantum efficiency of 8.15%, high EQE has been proved to be induced by the up-conversion of a triplet excited state.
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Authors
Guangyuan Mu, Shaoqing Zhuang, Wenzhi Zhang, Yixin Wang, Bo Wang, Lei Wang, Xunjin Zhu,