| 摘要 |
Use of transition metal complexes of the formula (I) in organic light-emitting diodes;where:M1 is a metal atom;carbene is a carbene ligand;L is a monoanionic or dianionic ligand;K is an uncharged monodentate or bidentate ligand selected from the group consisting of phosphines; CO; pyridines; nitriles and conjugated dienes which form a n complex with M1;n is the number of carbene ligands and is at least 1;m is the number of ligands L, where m can be 0 or ≧1;o is the number of ligands K, where o can be 0 or ≧1;where the sum n+m+o is dependent on the oxidation state and coordination number of the metal atom and on the denticity of the ligands carbene, L and K and also on the charge on the ligands carbene and L, with the proviso that n is at least 1, and also
an OLED comprising these transition metal complexes, a light-emitting layer comprising these transition metal complexes, OLEDs comprising this light-emitting layer, devices comprising an OLED according to the present invention, and specific transition metal complexes comprising at least two carbene ligands. |
