title: Bridging the efficiency gap: fully bridged dinuclear Cu(I)-complexes for singlet harvesting in high-efficiency OLEDs.
abstract: The substitution of rare metals such as iridium and platinum in light-emitting materials is a key step to enable low-cost mass-production of organic light-emitting diodes (OLEDs). Here, it is demonstrated that using a solution-processed, fully bridged dinuclear Cu(I)-complex can yield very high efficiencies. An optimized device gives a maximum external quantum efficiency of 23 ± 1% (73 ± 2 cd A(-1) ).
authors.affiliation: cynora GmbH, Werner-von-Siemensstraße 2-6, building 5110, 76646, Bruchsal, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Volz
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.forename: Manuela
authors.initials: M
authors.lastname: Wallesch
authors.forename: Rui
authors.initials: R
authors.lastname: Liu
authors.forename: Charlotte
authors.initials: C
authors.lastname: Fléchon
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Zink
authors.forename: Jana
authors.initials: J
authors.lastname: Friedrichs
authors.forename: Harald
authors.initials: H
authors.lastname: Flügge
authors.forename: Ralph
authors.initials: R
authors.lastname: Steininger
authors.forename: Jörg
authors.initials: J
authors.lastname: Göttlicher
authors.forename: Clemens
authors.initials: C
authors.lastname: Heske
authors.forename: Lothar
authors.initials: L
authors.lastname: Weinhardt
authors.forename: Stefan
authors.initials: S
authors.lastname: Bräse
authors.forename: Franky
authors.initials: F
authors.lastname: So
authors.forename: Thomas
authors.initials: T
authors.lastname: Baumann
mesh_terms: D003300:Copper / Q000737:chemistry*; D055615:Electrical Equipment and Supplies; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000737:chemistry*; D013696:Temperature
chemical_list: D009942:Organometallic Compounds; D003300:Copper
keywords: copper complexes; organic light-emitting diodes; singlet harvesting; solution-processing; thermally activated delayed fluorescence