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US 2014/0175408 A1Published application
Heteroleptic iridium carbene complexes and light emitting device using them
AssigneeUniversal Display Corporation
InventorsChun Lin, Chuanjun Xia, Jui-Yi Tsai, Bin Ma
Life of this patent
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Abstract
Novel heteroleptic iridium carbene complexes are provided, which contain at least two different carbene ligands. Selective substitution of the carbene ligands provides for phosphorescent compounds hat are suitable for use in a variety of OLED devices.
Claims22
A compound comprising a heteroleptic iridium complex having the formula:
- wherein X is selected from the group consisting of CRR′, SiRR′, C═O, N—R, B—R, O, S, SO, SO2, and Se;
- wherein R2, Rx, R5, and R6 represent mono, di, tri, tetra substitutions or no substitution;
- wherein R, R′, R1, R2, Rx, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein any two adjacent substituents are optionally joined together to form a ring, which may be further substituted;
- and wherein n is 1 or 2.
2 more elements
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:
- wherein X is selected from the group consisting of CRR′, SiRR′, C═O, N—R, B—R, O, S, SO, SO2, and Se;
- wherein R2, Rx, R5, and R6 may represent mono, di, tri, tetra substitutions or no substitution;
- wherein R, R′, R1, R2, Rx, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein any two adjacent substituents are optionally joined together to form a ring, which may be further substituted;
- and wherein n is 1 or 2.
5 more elements
22-35. (canceled)
Dependencies are inferred from the claim text.