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US 2014/0110691 A1Published application
Heteroleptic iridium carbene complexes and light emitting device using them
AssigneeUniversal Display Corporation
InventorsChun Lin, Chuanjun Xia, Bin Ma, Lichang Zeng, Alan DeAngelis, Edward Barron
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Abstract
Novel heteroleptic iridium carbene complexes are provided, which contain phenyl imidazole moieties. In particular, ligands containing 2,4,6-trisubstituted N-phenyl imidazole fragments have highly desirable properties that make them suitable materials for use in OLED devices.
Claims28
A compound comprising a heteroleptic iridium complex having the formula:
- wherein R3, R4, and R10 represent mono, di, tri, tetra substitutions or no substitution;
- wherein R7 is selected from the group consisting of 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 R1, R3, R4, R5, R6, R8, R9, and R10 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 each of R5 and R9 has a molecular weight more than 15.5 g/mol;
- wherein any two adjacent substituents are optionally joined to form a ring and may be further substituted;
- and wherein n is 1 or 2.
3 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 R3, R4, and R10 represent mono, di, tri, tetra substitutions or no substitution;
- wherein R7 is selected from the group consisting of 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 R1, R3, R4, R5, R6, R8, R9, and R10 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 each of R5 and R9 has a molecular weight more than 15.5 g/mol;
- wherein any two adjacent substituents are optionally joined to form a ring and may be further substituted;
- and wherein n is 1 or 2.
6 more elements
Dependencies are inferred from the claim text.