ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

• US 20150028323A1
• Filed: 10/07/2014
• Published: 01/29/2015
• Est. Priority Date: 02/23/2011
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: XIA, Chuanjun, YEAGER, Walter, LI, David Zenan, MA, Bin, LAYEK, Suman, KOTTAS, Gregg, BROOKS, Jason, FIORDELISO, James, ELSHENAWY, Zeinab, BARRON, Ed
• Granted Patent: US 9,947,880 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• 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 50/80 Constructional details
• CPC Class Codes: H10K 85/346 comprising platinum
• CPC Class Codes: H10K 85/40 Organosilicon compounds, e.g. TIPS pentacene
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
• CPC Class Codes: H10K 85/6576 comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.

Claims

1. A compound having the formula:

2. The compound of claim 1, wherein at least one of R′

₁ and R′

₂ is an alkyl and the other of R′

₁ and R′

₂ is hydrogen or deuterium.

3. The compound of claim 1, wherein each of R′

₁ and R′

₂ is an alkyl.

4. The compound of claim 1, wherein each of R′

₁ and R′

₂ is an aryl.

5. The compound of claim 1, wherein C is benzene.

6. The compound of claim 1, wherein A-B is selected from the group consisting of:

7. The compound of claim 1, wherein the compound is selected from the group consisting of:

8. A first device comprising an organic light emitting device, further comprising:

an anode;

a cathode; and

an organic layer, disposed between the anode and the cathode, comprising

a

9. The first device of claim 8, wherein the first device is a consumer product.

10. A compound having the formula:

11. The compound of claim 10, wherein the compound has the formula:

12. The compound of claim 10, wherein the compound has the formula:

13. The compound of claim 10, wherein the compound has the formula:

14. The compound of claim 10, wherein the compound has the formula:

15. The compound of claim 10, wherein the compound has the formula:

16. The compound of claim 10, wherein the compound has the formula:

17. The compound of claim 10, wherein the compound is selected from the group consisting of:

18. A first device comprising an organic light emitting device, further comprising:

an anode;

a cathode; and

an organic layer, disposed between the anode and the cathode, comprising a compound having the formula;

19. The first device of claim 18, wherein the compound is selected from the group consisting of:

20. The first device of claim 18, wherein the first device is a consumer product.