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

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 2...

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Detalles Bibliográficos
Autores principales: Crovini, Ettore, Zhang, Zhen, Kusakabe, Yu, Ren, Yongxia, Wada, Yoshimasa, Naqvi, Bilal A, Sahay, Prakhar, Matulaitis, Tomas, Diesing, Stefan, Samuel, Ifor D W, Brütting, Wolfgang, Suzuki, Katsuaki, Kaji, Hironori, Bräse, Stefan, Zysman-Colman, Eli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2021
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8685574/
https://www.ncbi.nlm.nih.gov/pubmed/34956408
http://dx.doi.org/10.3762/bjoc.17.197
Descripción
Sumario: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).

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