Phosphorescent materials

• US 9,142,786 B2
• Filed: 03/22/2013
• Issued: 09/22/2015
• Est. Priority Date: 03/08/2007
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Kwong, Raymond, Ma, Bin, Xia, Chuanjun, Alleyne, Bert, Brooks, Jason
• Primary Examiner(s): Bohaty, Andrew K
• Application Number:
  US13/849,028
• Publication Number:
  US 20130248832A1
• Time in Patent Office: 914 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1037 with sulfur
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: C09K 2211/188 of other metals not provided for in one of the previous groups
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/15 Hole transporting layers
• CPC Class Codes: H10K 50/16 Electron transporting layers
• CPC Class Codes: H10K 50/171 Electron injection layers
• CPC Class Codes: H10K 85/324 comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: H10K 85/381 Metal complexes comprising a group IIB metal element, e.g. comprising cadmium, mercury or zinc

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:

In the compounds of Formula I, n is 2, X—Y is acetylacetonate, R₁ is hydrogen or alkyl, R₂ is hydrogen, and at least one R₃ is alkyl.

Claims

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