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The inductive-effect of electron withdrawing trifluoromethyl for thermally activated delayed fluorescence: tunable emission from tetra- to penta-carbazole in solution processed blue OLEDs.
- Source :
-
Chemical Communications . 8/21/2015, Vol. 51 Issue 65, p13024-13027. 4p. - Publication Year :
- 2015
-
Abstract
- The non-conjugated inductive effect of trifluoromethyl (CF3) was found to be a new acceptor instead of other conjugated moieties. Two blue emissive compounds, 4CzCF3Ph and 5CzCF3Ph, were synthesized using a simple catalyst-free C–N coupling reaction. Solution-processed TADF devices based on the 5CzCF3Ph dopant exhibit significantly higher efficiency (11.8 cd A−1, 5.2%) than 4CzCF3Ph (1.03 cd A−1, 0.67%) due to the smaller ΔEST value for efficient RISC. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 51
- Issue :
- 65
- Database :
- Academic Search Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 108641782
- Full Text :
- https://doi.org/10.1039/c5cc04126k