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Bridging the efficiency gap: fully bridged dinuclear Cu(I)-complexes for singlet harvesting in high-efficiency OLEDs
Daniel Volz1, Ying Chen, Manuela Wallesch
1cynora GmbH, Werner-von-Siemensstraße 2-6, building 5110, 76646, Bruchsal, Germany.
Advanced Materials (Deerfield Beach, Fla.)
|March 11, 2015
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) ).
