Abstract: An organic electronic device comprising at least one hole-transport material and/or at least one electron/exciton blocker material, wherein said at least one hole-transport material and/or said at least one electron/exciton blocker material is an Ir metal-carbene complex comprising one, two or three specific bidentate azabenzimidazole ligands; a hole transport layer or an electron/exciton blocking layer, comprising at least one Ir metal-carbene complex, comprising one, two or three specific bidentate azabenzimidazole ligands; an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in furniture and units in wallpaper, comprising the organic electronic device of the present invention or the hole transport layer or the electron/exciton blocking layer of the present invention; and the use of an Ir metal-carbene complex comprising one, two or three specific bidentate azabenzimidazole ligands according to

Abstract: The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a luminescent organometallic complex X having a difference of the singlet energy (ES1(X)) and the triplet energy (ET1(X)) of smaller than 0.2 eV [? (ES1(X))?(ET1(X))<0.2 eV], 0.05 to 5.0% by weight of a fluorescent emitter Y and 55 to 97.95% by weight of a host compound(s), wherein the amount of the organometallic complex X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the luminescent organometallic complex X (ES1(X)) is greater than the singlet energy of the fluorescent emitter Y (ES1(Y)) [(ES1(X))>ES1(Y)].

Abstract: An organic light-emitting element which emits delayed fluorescence comprising specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives or 1,2,4-thiadiazole derivatives in the light-emitting layer, a light-emitting layer comprising the specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives or 1,2,4-thiadiazole derivatives, specific specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives and 1,2,4-thiadiazole derivatives and an organic light emitting element comprising the specific 1,2,4-azole derivatives as well as a light emitting layer comprising the specific 1,2,4-azole derivatives; the use of the specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives and 1,2,4-thiadiazole derivatives for electrophotographic photoreceptors, photoelectric converters, sensors, dye lasers, solar cell devices and organic light emitting elements, and the use of the specifically substituted 1,2,4-triazole derivatives, 1,2,4-ox

Abstract: A compound of the general formula (I), a process for the production of the compound and its use in electronic devices, especially electroluminescent devices. Improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices are provided when the compound of formula I is used as host material for phosphorescent emitters in 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 g

Abstract: A cyclometallated Ir complex comprising one, two or three ligands of formula (I) or (I?) substituted at the R5 and R7 position; an organic electronic device comprising at least one inventive cyclometallated Ir complex; a light-emitting layer comprising at least one inventive cy-clometallated Ir complex; the use of the inventive cyclometallated Ir complex in an OLED; an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in handbags, units in accessories, units in furniture and units in wallpaper, comprising the organic electronic device; and a process for preparing a the inventive cyclometallated Ir complex.

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 B1, B2, B3, B4, B5, B6, B7 and B8 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 (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 B1, B2, B3, B4, B5, B6, B7 and B8 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: A compound of the general formula (I), a process for the production of the compound and its use in electronic devices, especially electroluminescent devices. Improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices are provided when the compound of formula I is used as host material for phosphorescent emitters in electroluminescent devices.

Abstract: Cyclometallated Ir complex comprising three N,N diaryl substituted carbene ligands, bearing substituents in the 2 position of the non-cyclometallated aryl ring; an organic electronic device, preferably an organic light-emitting diode (OLED), comprising at least one cyclometallated Ir complex as described above, a light-emitting layer comprising said cyclometallated Ir complex preferably as emitter material, preferably in combination with at least one host material, use of said cyclometallated Ir complex in an OLED and an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in handbags, units in accessories, units in furniture and units in wallpaper comprising said organic electronic device, preferably said OLED, or said light-emitting layer. The present invention further relates to a process for the preparation of said cyclometallated Ir complex.

Abstract: Iridium organometallic complexes containing a substituted dibenzo[f,h]quinoxaline having the formula are provided. These compounds are useful as orange or red emitting components of a light emitting layer in an electronic device.

Abstract: The present invention relates to metal-carbene complexes comprising a central atom selected from iridium and platinum, and diazabenzimidazolocarbene ligands, to organic light diodes which comprise such complexes, to light-emitting layers comprising at least one such metal-carbene complex, to a device selected from the group comprising illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED and to the use of such a metal-carbene complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker.

Abstract: The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts on basis of benzotriazoles, which have a sufficiently small energy gap between S1 and T1 (?EST) to enable up-conversion of the triplet exciton from T1 to S1. The organic light emitting elements show high electroluminescent efficiency.

Abstract: The present invention relates to iridium and platinum carbene complexes of the general formula (I), to OLEDs (Organic Light-Emitting Diodes) which comprise such complexes, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a metal-carbene complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker.

Abstract: Cyclometallated Ir complex comprising three N,N diaryl substituted carbene ligands, bearing substituents in the 2 position of the non-cyclometallated aryl ring; an organic electronic device, preferably an organic light-emitting diode (OLED), comprising at least one cyclometallated Ir complex as described above, a light-emitting layer comprising said cyclometallated Ir complex preferably as emitter material, preferably in combination with at least one host material, use of said cyclometallated Ir complex in an OLED and an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in handbags, units in accessories, units in furniture and units in wallpaper comprising said organic electronic device, preferably said OLED, or said light-emitting layer. The present invention further relates to a process for the preparation of said cyclometallated Ir complex.

Abstract: The present invention relates to metal-carbene complexes comprising a central atom selected from iridium and platinum, and diazabenzimidazolocarbene ligands, to organic light diodes which comprise such complexes, to light-emitting layers comprising at least one such metal-carbene complex, to a device selected from the group comprising illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED and to the use of such a metal-carbene complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker.

Abstract: The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts on basis of phthalimide and naphthalimide materials, which have a sufficiently small energy gap between S1 and T1 (?EST) to enable up-conversion of the triplet exciton from T1 to S1. The organic light emitting elements show high electroluminescent efficiency.

Abstract: The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 40.01 to 99.95% by weight of a luminescent organometallic complex X having a difference of the singlet energy (ES1(X)) and the triplet energy (ET1(X)) of smaller than 0.2 eV [?(ES1(X))?(ET1(X))<0.2 eV], 0.05 to 5.00% by weight of a fluorescent emitter Y and 0 to 59.94% by weight of a host compound(s), wherein the amount of the organometallic complex X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the luminescent organometallic complex X (ES1(X)) is greater than the singlet energy of the fluorescent emitter Y (ES1(Y)) [(ES1(X))>ES1(Y)].

Abstract: Cyclometallated Ir complex comprising three N,N diaryl substituted carbene ligands, bearing substituents in the 2 position of the non-cyclometallated aryl ring; an organic electronic device, preferably an organic light-emitting diode (OLED), comprising at least one cyclometallated Ir complex as described above, a light-emitting layer comprising said cyclometallated Ir complex preferably as emitter material, preferably in combination with at least one host material, use of said cyclometallated Ir complex in an OLED and an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in handbags, units in accessories, units in furniture and units in wallpaper comprising said organic electronic device, preferably said OLED, or said light-emitting layer. The present invention further relates to a process for the preparation of said cyclometallated Ir complex.

Abstract: The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts on basis of benzotriazoles, which have a sufficiently small energy gap between S1 and T1 (?EST) to enable up-conversion of the triplet exciton from T1 to S1. The organic light emitting elements show high electroluminescent efficiency.