Abstract:
The present invention relates to compounds of formula (I), which are characterized in that they substituted by benzimidazo[1,2-a]benzimidazo-5-yl and/or benzimidazo[1,2-a]benzimidazo-2,5-ylene groups and in that at least one of the substituents B 1 , B 2 , B 3 , B 4 , B 5 , B 6 , B 7 and B 8 represents N; a process for their production and their use in electronic devices, especially electroluminescent devices. When used as host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.
Abstract:
The present invention relates to compounds of formula II, a process for their production and their use in electronic devices, especially electroluminescent devices. When used as hole transport material in electroluminescent devices, the compounds of formula II may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.
Abstract:
Organic electronics applications, especially an organic light-emitting diode (OLED), an organic solar cell (organic photovoltaics) or a switching element such as an organic transistor, for example an organic FET (Field Effect Transistor) and an organic TFT (Thin Film Transistor), comprising at least one substituted phenoxasiline derivative, a organic semiconductor layer, a host material, electron/hole/exciton blocking material or electron/hole injection material comprising at least one substituted phenoxasiline derivative, the use of a substituted phenoxasiline derivative in organic electronics applications, an organic light-emitting diode, wherein at least one substituted phenoxasiline derivative is present in the electron/hole/exciton blocking layer, the electron/hole injection layer and/or the light-emitting layer, a light-emitting layer, an electron/hole/exciton blocking layer and an electron/hole injection layer comprising at least one substituted phenoxasiline derivative and a device selected from the group consisting of stationary visual display units, mobile visual display units; illumination units; keyboards; garments; furniture and wallpaper comprising at least one organic light-emitting diode, at least one light-emitting layer, at least one electron/hole/exciton blocking layer and/or at least one electron/hole injection layer according to the present invention.
Abstract:
Metal complexes comprising at least one polycyclic aromatic ligand, wherein the metal complexes contain at least one deuterium atom, an organic light-emitting diode comprising at least one metal complex according to the invention, a light-emitting layer comprising at least one metal complex according to the invention, an organic light-emitting diode comprising at least one light-emitting layer according to the invention, use of the at least one metal complex according to the invention in organic light-emitting diodes and a device selected from the group consisting of stationary screens, such as computer or television screens, screens in printers, cooking devices and billboards, lighting, information boards and mobile screens such as screens in cell phones, laptops, digital cameras, vehicles and destination displays on busses, trams and trains, said device comprising at least one organic light-emitting diode according to the invention.
Abstract:
Metal complexes comprising at least one polycyclic aromatic ligand bound to the central metal by way of one nitrogen atom and a carbon atom and at least one hetero atom selected from O and S, an organic light-emitting diode comprising at least one metal complex according to the invention, a light-emitting layer comprising at least one metal complex according to the invention, an organic light-emitting diode comprising at least one light-emitting layer according to the invention, use of the at least one metal complex according to the invention in organic light-emitting diodes and a device selected from the group consisting of stationary screens, such as computer or television screens, screens in printers, cooking devices and sandwich boards, illuminations, information boards and mobile screens such as screens in cell phones, laptops, digital cameras, vehicles and destination displays on busses and roads, said device comprising at least one organic light-emitting diode according to the invention.