Fabrication of a Solution-Processed White Light Emitting Diode Containing a Single Dimeric Copper(I) Emitter Featuring Combined TADF and Phosphorescence

Luminescent copper(I) complexes showing thermally activated delayed fluorescence (TADF) have developed to attractive emitter materials for organic light emitting diodes (OLEDs). Here, we study the brightly luminescent dimer Cu(2)Cl(2)(P∩N)(2) (P∩N = diphenylphosphanyl-6-methyl-pyridine), which shows...

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Detalles Bibliográficos
Autores principales: Cheng, Gang, Zhou, Dongling, Monkowius, Uwe, Yersin, Hartmut
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8703954/
https://www.ncbi.nlm.nih.gov/pubmed/34945348
http://dx.doi.org/10.3390/mi12121500
Descripción
Sumario:Luminescent copper(I) complexes showing thermally activated delayed fluorescence (TADF) have developed to attractive emitter materials for organic light emitting diodes (OLEDs). Here, we study the brightly luminescent dimer Cu(2)Cl(2)(P∩N)(2) (P∩N = diphenylphosphanyl-6-methyl-pyridine), which shows both TADF and phosphorescence at ambient temperature. A solution-processed OLED with a device structure ITO/PEDOT:PSS/PYD2: Cu(2)Cl(2)(P∩N)(2)/DPEPO (10 nm)/TPBi (40 nm)/LiF (1.2 nm)/Al (100 nm) shows warm white emission with moderate external quantum efficiency (EQE). Methods for EQE increase strategies are discussed.

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