Deuterated heteroleptic iridium complexes as phosphorescent material in OLEDS

摘要

The application regards heteroleptic iridium complexes, devices containing the same such as e.g. LED and OLED devices. Formulations including such complexes are described. The complexes can have the formula Ir(L 1 ) n (L 2 ) 3-n , wherein the first ligand L 1 has Formula I, the second ligand L 2 has Formula II,
L 1 is different from L 2 ; R 1 is a partially or fully deuterated group consisting of alkyl and cyloalkyl.
The other variables are as defined in the claims.
A representative example from the application is compound 10, illustrating the generation of the heteroleptic complexes: