o- - Metal complexes comprising carbene ligands having an o-substituted non-cyclometalated aryl group and their use in organic light emitting diodes

摘要

a cyclometalated Ir complex comprising three N,N diaryl substituted carbene ligands having a substituent at the 2-position of a non-cyclometallated aryl ring; An organic electronic device, preferably an organic light-emitting diode (OLED), comprising at least one of the cyclometalated Ir complexes, the cyclometalated Ir complex is preferably used as an emitter material , preferably in combination with one or more host materials, a light emitting layer comprising the cyclometalated Ir complex in an OLED, and a fixed visual display comprising said organic electronic device, preferably said OLED, or said light emitting layer It relates to a device selected from the group consisting of a display unit, a moving time display unit, a lighting unit, a clothing item unit, a handbag unit, an accessory unit, a furniture unit and an OLED unit. The present invention further relates to a method for preparing the cyclometalated Ir complex.