abstract |
Phosphorescent materials and devices, having high device efficiency, stability, and processability are disclosed. The compounds are specific embodiments of an iridium complex, having the following structure: n n n n n n n n n n In the compounds of Formula I, n is 2, X—Y is acetylacetonate, R 1 is hydrogen or alkyl, R 2 is hydrogen, and at least one R 3 is alkyl. |