Efficient white polymer light-emitting diodes (WPLEDs) based on covalent-grafting of [Zn2(MP)3(OAc)] into PVK

Thanks to the straightforward white light of single grafting-type polymers based on earth-abundant Zn(ii)-complexes, producing cost-effective flexible WOLEDs/WPLEDs with good device performance remains a formidable challenge. Herein, by using the polymer Poly(NVK-co-[Zn2(MP)3(OAc)]) with excellent p...

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Detalles Bibliográficos
Autores principales: Fu, Guorui, He, Yani, Li, Wentao, Miao, Tiezheng, Lü, Xingqiang, He, Hongshan, Liu, Li, Wong, Wai-Yeung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8157705/
https://www.ncbi.nlm.nih.gov/pubmed/34084322
http://dx.doi.org/10.1039/c9sc05288g
Descripción
Sumario:Thanks to the straightforward white light of single grafting-type polymers based on earth-abundant Zn(ii)-complexes, producing cost-effective flexible WOLEDs/WPLEDs with good device performance remains a formidable challenge. Herein, by using the polymer Poly(NVK-co-[Zn2(MP)3(OAc)]) with excellent physical properties for single-layer WPLEDs, record-high efficiencies (η(Max)(c) = 13.0 cd A(−1), η(Max)(p) = 6.1 lm W(−1) and η(Max)(EQE) = 9.2%) and low (ca. 25%) efficiency roll-off compared to previous organo-Zn(2+)-based WOLEDs/WPLEDs are realized. This finding renders single Zn(ii)-complex-grafted polymers a new route to low-cost and large-area flexible WPLEDs for potential full-colour flat displays.

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