Phenothiazinen-Dimesitylarylborane-Based Thermally Activated Delayed Fluorescence: High-Performance Non-doped OLEDs With Reduced Efficiency Roll-Off at High Luminescence

We report a phenothiazinen-dimesitylarylborane thermally activated delayed fluorescence (TADF) molecule that exhibits high external quantum efficiency (EQE) in non-doped organic light-emitting diodes (OLEDs) at high luminescence. The non-doped device shows green electroluminescence with an emission...

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Detalles Bibliográficos
Autores principales: Tang, Xiangyang, Tao, Yanchun, Liu, Hui, Liu, Futong, He, Xin, Peng, Qiming, Li, Jinyu, Lu, Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6548864/
https://www.ncbi.nlm.nih.gov/pubmed/31192193
http://dx.doi.org/10.3389/fchem.2019.00373
Descripción
Sumario:We report a phenothiazinen-dimesitylarylborane thermally activated delayed fluorescence (TADF) molecule that exhibits high external quantum efficiency (EQE) in non-doped organic light-emitting diodes (OLEDs) at high luminescence. The non-doped device shows green electroluminescence with an emission peak of 540 nm and a maximum EQE of 19.66% obtained at a luminescence of ~170 cd m(−2). The EQE is still as high as 17.31% at a high luminescence of 1,500 cd m(−2) with small efficiency roll-off.

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