High-Efficiency and Narrowband Green Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes Based on Two Diverse Boron Multi-Resonant Skeletons.
In: Molecules, Jg. 29 (2024-02-15), Heft 4, S. 841-852
academicJournal
Zugriff:
Up to now, highly efficient narrowband thermally activated delayed fluorescence (TADF) molecules constructed by oxygen-bridged boron with an enhancing multiple resonance (MR) effect have been in urgent demand for solid-state lighting and full-color displays. In this work, a novel MR-TADF molecule, BNBO, constructed by the oxygen-bridged boron unit and boron–nitrogen core skeleton as an electron-donating moiety, is successfully designed and synthesized via a facile one-step synthesis. Based on BNBO as an efficient green emitter, the organic light-emitting diode (OLED) shows a sharp emission peak of 508 nm with a full-width at half-maximum (FWHM) of 36 nm and realizes quite high peak efficiency values, including an external quantum efficiency (EQEmax) of 24.3% and a power efficiency (PEmax) of 62.3 lm/W. BNBO possesses the intramolecular charge transfer (ICT) property of donor-acceptor (D-A) materials and multiple resonance characteristics, which provide a simple strategy for narrowband oxygen–boron materials. [ABSTRACT FROM AUTHOR]
| Titel: |
High-Efficiency and Narrowband Green Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes Based on Two Diverse Boron Multi-Resonant Skeletons.
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| Autor/in / Beteiligte Person: | Wang, Zhen ; Qu, Cheng ; Liang, Jie ; Zhuang, Xuming ; Liu, Yu ; Wang, Yue |
| Zeitschrift: | Molecules, Jg. 29 (2024-02-15), Heft 4, S. 841-852 |
| Veröffentlichung: | 2024 |
| Medientyp: | academicJournal |
| ISSN: | 1420-3049 (print) |
| DOI: | 10.3390/molecules29040841 |
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