MONOSUBSTITUTED DIAZABENZIMIDAZOLE CARBENE METAL COMPLEXES FOR USE IN ORGANIC LIGHT EMITTING DIODES

摘要

The present invention relates to organic electronic devices, preferably organic light emitting diodes (OLEDs) comprising at least one metal-carbene complex comprising 1, 2 or 3 specific bidentate diazabenzimidazole carbene ligands; a light emitting layer comprising said metal-carbene complex as emitter material, preferably in combination with one or more host materials; use of said metal-carbene complexes in OLEDs; a fixed visual display unit, a movable visual display unit, a lighting unit, a unit in an article of clothing, a unit in a handbag, a unit in an accessory, a unit in furniture and a device selected from the group consisting of units in wallpaper; It relates to a metal-carbene complex comprising the above-mentioned specific bidentate diazabenzimidazole carbene ligands 1, 2 or 3 and a method for preparing the metal-carbene complex.