Effect of a twin-emitter design strategy on a previously reported thermally activated delayed fluorescence organic light-emitting diode

Autor: Ettore Crovini, Zhen Zhang, Yu Kusakabe, Yongxia Ren, Yoshimasa Wada, Bilal A. Naqvi, Prakhar Sahay, Tomas Matulaitis, Stefan Diesing, Ifor D. W. Samuel, Wolfgang Brütting, Katsuaki Suzuki, Hironori Kaji, Stefan Bräse, Eli Zysman-Colman
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 17, Iss 1, Pp 2894-2905 (2021)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.17.197
Popis: In this work we showcase the emitter DICzTRZ in which we employed a twin-emitter design of our previously reported material, ICzTRZ. This new system presented a red-shifted emission at 488 nm compared to that of ICzTRZ at 475 nm and showed a comparable photoluminescence quantum yield of 57.1% in a 20 wt % CzSi film versus 63.3% for ICzTRZ. The emitter was then incorporated within a solution-processed organic light-emitting diode that showed a maximum external quantum efficiency of 8.4%, with Commission Internationale de l’Éclairage coordinate of (0.22, 0.47), at 1 mA cm−2.
Databáze: Directory of Open Access Journals