In:
Molecules, MDPI AG, Vol. 26, No. 17 ( 2021-08-29), p. 5243-
Kurzfassung:
In this work, we demonstrate dibenzothiophene sulfoximine derivatives as building blocks for constructing emitters featuring both thermally activated delayed fluorescent (TADF) and aggregation-induced emission (AIE) properties, with multiple advantages including high chemical and thermal stability, facile functionalization, as well as tunable electron-accepting ability. A series of phenoxazine-dibenzothiophene sulfoximine structured TADF emitters were successfully synthesized and their photophysical and electroluminescent properties were evaluated. The electroluminescence devices based on these emitters displayed diverse emissions from yellow to orange and reached external quantum efficiencies (EQEs) of 5.8% with 16.7% efficiency roll-off at a high brightness of 1000 cd·m−2.
Materialart:
Online-Ressource
ISSN:
1420-3049
DOI:
10.3390/molecules26175243
Sprache:
Englisch
Verlag:
MDPI AG
Publikationsdatum:
2021
ZDB Id:
2008644-1
