Multifunctional terpyridine/diphenylamine derivatives as highly efficient blue fluorescent emitters and red phosphorescent hosts
| العنوان: | Multifunctional terpyridine/diphenylamine derivatives as highly efficient blue fluorescent emitters and red phosphorescent hosts |
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| المؤلفون: | Cai-Jun Zheng, Chuan-Lin Liu, Xue-Mei Ou, Fan Li, Zhan Chen, Xiao-Ke Liu, Xiaohong Zhang, Ji-Ping Yang |
| المصدر: | Journal of Materials Chemistry C. 3:1068-1076 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Fluorophore, Diphenylamine, General Chemistry, Electron acceptor, Photochemistry, Fluorescence, chemistry.chemical_compound, chemistry, Materials Chemistry, OLED, Terpyridine, Phosphorescence, HOMO/LUMO |
| الوصف: | Three terpyridine (TPY)/diphenylamine (DPA) derivatives, with DPA functioning as the electron donor and TPY as the electron acceptor, were designed and synthesized. By switching the position of the nitrogen atom in the substituted pyridine of TPY acceptors, we can adjust the electron-drawing strength of the TPY group, and hence, further modify the fluorescence, lowest unoccupied molecular orbital energy levels, carrier transporting properties of three compounds, but barely influence triplet energy levels. Three compounds satisfy the requirements of multifunctional blue fluorophores and are successfully used as highly efficient blue fluorescent emitters and red phosphorescent hosts in organic light-emitting devices (OLEDs). Non-doped blue fluorescent OLEDs that use TPY22DPA, TPY33DPA, and TPY44DPA as emitters exhibit maximum external quantum efficiencies (EQEs) of 4.9%, 3.8%, and 2.7%, respectively. Meanwhile, red phosphorescent OLEDs that use TPY22DPA, TPY33DPA, and TPY44DPA as host materials exhibit maximum EQEs of 19.1%, 20.9%, and 17.2%, respectively. These results are among the best reported multifunctional blue fluorophore efficiencies. |
| تدمد: | 2050-7534 2050-7526 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::355b0d691c08e0483e5bb78f8bcb8e0d https://doi.org/10.1039/c4tc02459a |
| رقم الأكسشن: | edsair.doi...........355b0d691c08e0483e5bb78f8bcb8e0d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20507534 20507526 |
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