Bifunctional Group Modulation Strategy Enables MR‐TADF Electroluminescence Toward BT.2020 Green Light Standard
Chinese Academy of Sciences · University of Chinese Academy of Sciences · +4 more institutions
Abstract
Herein, a parallel "bifunctional group" modulation method is proposed to achieve controlled modulation of the emission wavelength and full-width at half-maximum (FWHM) values. As a result, three proof-of-concept emitters, namely DBNDS-TPh, DBNDS-DFPh, and DBNDS-CNPh, are designed and synthesized, with the first functional dibenzo[b,d]thiophene unit concurrently reducing the bandgap and elevate their triplet state energy. A second functional group 1,1':3',1″-triphenyl, and electron acceptors 1,3-difluorobenzene and benzonitrile, respectively, to deepen the HOMO and LUMO levels. Accordingly, the CIE coordinates of DBNDS-TPh, DBNDS-DFPh, and DBNDS-CNPh are (0.13, 0.77), (0.14, 0.77), and (0.14, 0.76)…
Citation impact
- FWCI
- 25.44
- Percentile
- 100%
- References
- 50
Authors
11- LWLin Wu
Chinese Academy of Sciences, University of Chinese Academy of Sciences, Ningbo Institute of Industrial Technology
- ZXZiru Xin
Zhejiang Sci-Tech University, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Ningbo Institute of Industrial Technology
- DLDenghui Liu
South China University of Technology
- DLDeli Li
University of Jinan
- JZJiasen Zhang
Chinese Academy of Sciences, University of Chinese Academy of Sciences, Ningbo Institute of Industrial Technology
Topics & keywords
- Bifunctional
- Benzonitrile
- Electroluminescence
- Toluene
- Materials science
- OLED
- Thiophene
- Doping
- Affordable and clean energy