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US 2017/0365800 A1Published application
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsJui-Yi TSAI, Zhiqiang JI, Alexey Borisovich DYATKIN, Chuanjun XIA, Chun LIN, Lichang ZENG, Walter YEAGER
Life of this patent
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Abstract
Iridium complexes comprising three different bidentate ligands and their use in OLEDs to enhance the device efficiency and lifetime are disclosed.
Claims19
A compound having a formula Ir(LA)(LB)(LC);
- wherein the ligand LA is selected from the group consisting of:
- wherein the ligand LB is
- wherein the ligand LC is
- wherein rings A, B, C, and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring;
- wherein R1, R2, R3, RA, RB, RC, and RD each independently represents mono, to a maximum possible number of substitutions, or no substitution;
- wherein X1 to X12, Z1, and Z2 are each independently C or N;
- wherein Y1 is selected from the group consisting of O, S, Se, and Ge;
- wherein X is selected from the group consisting of BR′, NR′, PR′, O, S, Se, C═O, S═O, SO2, CR′R″, SiR′R″, and GeR′R″;
- wherein LA, LB, and LC are different from each other, and can be connected to each other to form multidentate ligand;
- wherein R1, R2, R3, RA, RB, RC, RD, R′, and R″ 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;
- and
- wherein any two or more substituents among R1, R2, R3, RA, RB, RC, RD, R′, and R″ are optionally joined or fused into a ring.
9 more elements
An organic light emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising a compound having the formula Ir(LA)(LB)(LC);
- wherein the ligand LA is selected from the group consisting of:
- wherein the ligand LB is
- wherein the ligand LC is
- wherein rings A, B, C, and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring;
- wherein R1, R2, R3, RA, RB, RC, and RD each independently represents mono, to a maximum possible number of substitutions, or no substitution;
- wherein X1 to X12, Z1, and Z2 are each independently C or N;
- wherein X is selected from the group consisting of BR′, NR′, PR′, O, S, Se, C═O, S═O, SO2, CR′R″, SiR′R″, and GeR′R″;
- wherein LA, LB, and LC are different from each other;
- wherein R1, R2, R3, RA, RB, RC, RD, R′, and R″ 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;
- and
- wherein any two or more substituents among R1, R2, R3, RA, RB, RC, RD, R′, and R″ are optionally joined or fused into a ring.
12 more elements
A consumer product comprising an organic light-emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising a compound having the formula Ir(LA)(LB)(LC);
- wherein the ligand LA is selected from the group consisting of:
- wherein the ligand LB is
- wherein the ligand LC is
- wherein rings A, B, C, and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring;
- wherein R1, R2, R3, RA, RB, RC, and RD each independently represents mono, to a maximum possible number of substitution, or no substitution;
- wherein X1 to X12, Z1, and Z2 are each independently C or N;
- wherein X is selected from the group consisting of BR′, NR′, PR′, O, S, Se, C═O, S═O, SO2, CR′R″, SiR′R″, and GeR′R″;
- wherein LA, LB, and LC are different from each other;
- wherein R1, R2, R3, RA, RB, RC, RD, R′, and R″ 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;
- and
- wherein any two or more substituents among R1, R2, R3, RA, RB, RC, RD, R′, and R″ are optionally joined or fused into a ring.
12 more elements
(canceled)
Dependencies are inferred from the claim text.