Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 22nd May 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.



Integrating TADF luminogens with AIE characteristics using a novel acridine–carbazole hybrid as donor for high-performance and low efficiency roll-off OLEDs

Author affiliations

Abstract

A novel acridine–carbazole hybrid donor (34AcCz: 13,13-dimethyl-8-phenyl-8,13-dihydro-5H-indolo[3,2-a]acridine) was formed from two sophisticated donors of dimethyl acridine (DMAc) and carbazole (Cz). Based on this novel donor and the acceptors of pyrimidine and triazine, two new luminogens with both prominent TADF and AIE properties, namely, 5-(4-(2,6-diphenylpyrimidin-4-yl)phenyl)-13,13-dimethyl-8-phenyl-8,13-dihydro-5H-indolo[3,2-a]acridine (34AcCz-PM) and 5-(4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)-13,13-dimethyl-8-phenyl-8,13-dihydro-5H-indolo[3,2-a]acridine (34AcCz-Trz), have been designed and synthesized. AIE characteristics in TADF emitters can be regulated by the selection of acceptor species, then 34AcCz-PM realized a higher photoluminescence quantum yield (PLQY) than that of 34AcCz-Trz. Finally, the maximum current efficiency (CEmax)/external quantum efficiency (EQEmax) of 73.3 cd A−1/22.6% for the doped OLEDs of 34AcCz-PM was demonstrated, which remained at 65.5 cd A−1/20.1% even at a high luminance of 5000 cd m−2. A highly efficient nondoped OLED based on 34AcCz-PM was also obtained, providing maximum EL efficiencies of 45.2 cd A−1/14.1%.

Graphical abstract: Integrating TADF luminogens with AIE characteristics using a novel acridine–carbazole hybrid as donor for high-performance and low efficiency roll-off OLEDs

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Mar 2019, accepted on 16 Apr 2019 and first published on 22 Apr 2019


Article type: Paper
DOI: 10.1039/C9TC01329F
J. Mater. Chem. C, 2019, Advance Article

  •   Request permissions

    Integrating TADF luminogens with AIE characteristics using a novel acridine–carbazole hybrid as donor for high-performance and low efficiency roll-off OLEDs

    Q. Zhang, S. Sun, W. Liu, P. Leng, X. Lv, Y. Wang, H. Chen, S. Ye, S. Zhuang and L. Wang, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C9TC01329F

Search articles by author

Spotlight

Advertisements