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US 2010/0141127 A1Published application
Phosphorescent emitters
AssigneeUniversal Display Corporation
InventorsChuanjun XIA, Raymond Kwong, Dinesh Rayabarapu, Bin Ma
Life of this patent
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Abstract
Heteroleptic compounds containing phenylpyridine and phenylbenzimidazole are provided. The compounds may be used in organic light emitting devices, particularly as emissive dopants in the emissive layer of such devices.
Claims28
A heteroleptic iridium compound Ir(L1)n(L2)3-n, having the formula:
- wherein n=1 or 2;
- wherein
- is L1;
- wherein
- is L2;
- wherein R1, R2, R3, R4, and R5 may represent mono, di, tri, or tetra substitutions;
- and
- wherein R1, R2, R3, R4, and R5 are each independently selected from the group consisting of hydrogen, alkyl, heteroalkyl, aryl, substituted aryl, heteroaryl, and substituted heteroaryl.
5 more elements
An organic light emitting device comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, the organic layer further comprising a heteroleptic iridium compound Ir(L1)n(L2)3-n compound having the formula:
- wherein n=1 or 2;
- wherein
- is L1;
- wherein
- is L2;
- wherein R1, R2, R3, R4, and R5 may represent mono, di, tri, or tetra substitutions;
- and
- wherein R1, R2, R3, R4, and R5 are each independently selected from the group consisting of hydrogen, alkyl, heteroalkyl, aryl, substituted aryl, heteroaryl, and substituted heteroaryl.
9 more elements
A consumer product comprising a device, the device further comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, the organic layer further comprising a heteroleptic iridium compound Ir(L1)n(L2)3-n, compound having the formula:
- wherein n=1 or 2;
- wherein
- is L1;
- wherein
- is L2;
- wherein R1, R2, R3, R4, and R5 may represent mono, di, tri, or tetra substitutions;
- and
- wherein R1, R2, R3, R4, and R5 are each independently selected from the group consisting of hydrogen, alkyl, heteroalkyl, aryl, substituted aryl, heteroaryl, and substituted heteroaryl.
9 more elements
Dependencies are inferred from the claim text.