Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 6, Issue 25, Pages 6698-6704Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc01746h
Keywords
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Funding
- National Natural Science Foundation of China [91333201]
- National Basic Research Program of China [2015CB65500]
- Jilin Province-University Program [SXGJSF2017-3]
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In this paper, a near-infrared (NIR) TADF molecule with dibenzo[a,c]phenazine-11,12-dicarbonitrile (DBPzDCN) as the acceptor has been designed, synthesized and characterized. Connecting the DBPzDCN core with a diphenylamine (DPA) donor, NIR emission is successfully achieved. The relationship between the molecular structure and optoelectronic properties is discussed experimentally and theoretically. A high external quantum efficiency (EQE) of 7.68% with an emission peak at 698 nm and Commission Internationale de L' Eclairage (CIE) coordinates of (0.68, 0.30) was achieved in a NIR organic light-emitting diode.
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