Diaryl-substituted anthracene derivatives containing 3-(trifluoromethyl)phenyl) groups, 9,10-diphenyl-2-(3-(trifluoromethyl)phenyl)anthracene (1), 9,10-di([1,10-biphenyl]-4-yl)-2- (3-(trifluoromethyl)phenyl)anthracene (2), and 9,10-di(naphthalen-2-yl)-2-(3-(trifluoromethyl)phenyl) anthracene (3) were synthesized and characterized. The compounds 1-3 possessed high thermal stability and proper frontier-energy levels, which make them suitable as host materials for blue organic light-emitting diodes. The electroluminescent (EL) emission maximum of the three N,N-diphenylamino phenyl vinyl biphenyl (DPAVBi)-doped (8 wt %) devices for compounds 1-3 was exhibited at 488 nm (for 1) and 512 nm (for 2 and 3). Among them, the 1-based device displayed the highest device performances in terms of brightness (Lmax = 2153.5 cd·m-2), current efficiency (2.1 cd·A-1), and external quantum efficiency (0.8%), compared to the 2- and 3-based devices.
Bibliographical noteFunding Information:
This work was supported by the Nano Material Technology Development Program (NRF-2016M3A7B4909246 for Kang Mun Lee) and Basic Science Research Program (NRF-2015R1C1A1A01055026 for Hyunbok Lee) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning. Yongseog Chung acknowledges the Basic Science Research Program (NRF-2017R1D1A1B03031911) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education and the support from the research grant of Chungbuk National University in 2015.
© 2017 by the authors.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Process Chemistry and Technology
- Computer Science Applications
- Fluid Flow and Transfer Processes