Patent ID: 9024026
Filing Date: 2015-05-05
Classification: C07D,C07F,C09B,C09K,H01L,Y02E,Y02P

Abstract:
1. A neutral mononuclear copper(I) complex for the emission of light with a structure according to formula A wherein: M is Cu(I); L∩L is a single negatively charged bidentate ligand, wherein the single negatively charged bidentate ligand is a substituted 2,2′-bipyridine-derivative (bpy) or a 1,10-phenanthroline-derivative (phen); N∩N is a diimine ligand, substituted with R and FG; R are substituents in 3,3′-position (bpy) or 2,9-position (phen) for preventing a change of geometry of copper(I) complexes towards a planarization in an excited state; function group FG is at least one substituent for conducting electrons and for increasing the solubility in organic solvents, or at least one substituent for conducting holes and for increasing the solubility in organic solvents, wherein FG is bound either directly or via a bridge to the diimine ligand, wherein the copper(I) complex has: a ΔE(S an emission decay time of at most 20 μs; an emission quantum yield larger than 40%, and a solubility in organic solvents of at least 1 g/L.