| abstract |
The invention belongs to the field of organic optoelectronics, and in particular relates to a composition comprising an iridium metal complex and an organic compound and an organic electroluminescence element comprising the composition, in particular to an organic electroluminescence diode, wherein the iridium metal complexes The structure of the compound is shown in formula (I), and the structure of organic compound is shown in formula (II) or formula (III): In the iridium metal complex formula (I), (L^Z) is selected from the formula (IV), The organic compound of formula (II) or formula (III) and organic optoelectronic elements can be understood by reference to the specific description provided herein. The composition of the present invention is applied to the light-emitting layer of the organic electroluminescent diode, so that the current efficiency of the light-emitting element is improved, the driving voltage is obviously reduced, the service life is prolonged, and has a good commercialization prospect. |