Phosphorescent materials
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: 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.
1. A compound, which is selected from the group consisting of:
2. The compound of claim 1 , which is:
3. The compound of claim 1 , which is:
4. The compound of claim 1 , which is:
5. The compound of claim 1 , which is:
6. The compound of claim 1 , which is:
7. The compound of claim 1 , which is:
8. An organic light emitting device comprising:
an anode;
a cathode; and
an emissive organic layer, disposed between the anode and the cathode, the organic layer further comprising a compound selected from the group consisting of:
9. The device of claim 8 , wherein the organic emissive layer further comprises BAlq or
10. The device of claim 8 , wherein the compound is:
11. The device of claim 10 , wherein the organic emissive layer further comprises BAlq or
12. The device of claim 8 , wherein the compound is:
13. The device of claim 12 , wherein the organic emissive layer further comprises BAlq or
14. The device of claim 8 , wherein the compound is:
15. The device of claim 14 , wherein the organic emissive layer further comprises BAlq or
16. The device of claim 8 , wherein the compound is:
17. The device of claim 16 , wherein the organic emissive layer further comprises BAlq or
18. The device of claim 8 , wherein the compound is:
19. The device of claim 18 , wherein the organic emissive layer further comprises BAlq or
20. The device of claim 8 , wherein the compound is:
21. The device of claim 20 , wherein the organic emissive layer further comprises BAlq or