Back to results
US 12,760,050 B2Granted
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsJui-Yi Tsai, Mingjuan Su
Life of this patent
Estimating the term…
Abstract
The present invention includes novel heteroleptic/homoleptic iridium complexes containing two tridentate ligands, where at least one of the tridentate ligands comprises of pyridinium-derived N-heterocyclic carbene. The compounds of the present invention may be useful for organic electroluminescent devices.
Claims17
A compound comprising a ligand LA of Formula I coordinated to a metal M, and the metal M is coordinated to ring B through a metal-carbene bond,
- wherein
- ring A is a 5-membered or 6-membered ring, and Z1 is selected from the group consisting of C and N;
- X1, X2, X3, and X4 are independently selected from CR1 or N;
- X3, X6, and X7 are independently selected from CR2 or N;
- each R1, R2, and R3 are 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;
- or optionally, any two adjacent R1, R2, and R3 can join to form a ring;
- wherein LA is optionally linked with other ligands to comprise a tetradentate, pentadentate, or hexadentate ligand;
- M is Pt;
- and
- M is optionally coordinated to other ligands.
7 more elements
An organic light emitting device (OLED) comprising:
- an anode;
- a cathode;
- and an organic layer disposed between the anode and the cathode, the organic layer including a compound comprising a ligand LA of Formula I, the ligand LA is coordinated to a metal M, and M is coordinated to ring B through a metal-carbene bond
- wherein
- ring A is a 5-membered or 6-membered ring, and Z1 is selected from the group consisting of C and N;
- X1, X2, X3, and X4 are independently selected from CR1 or N;
- X3, X6, and X7 are independently selected from CR2 or N;
- each R1, R2, and R3 are 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;
- or optionally, any two adjacent R1, R2, and R3 can join to form a ring;
- wherein LA is optionally linked with other ligands to comprise a tetradentate, pentadentate, or hexadentate ligand;
- M is Pt;
- and
- M is optionally coordinated to other ligands.
10 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, the organic layer including a compound comprising a ligand LA of Formula I, the ligand LA is coordinated to a metal M, and M is coordinated to ring B through a metal-carbene bond
- wherein
- ring A is a 5-membered or 6-membered ring, and Z1 is selected from the group consisting of C and N;
- X1, X2, X3, and X4 are independently selected from CR1 or N;
- X5, X6, and X7 are independently selected from CR2 or N;
- each R1, R2, and R3 are 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;
- or optionally, any two adjacent R1, R2, and R3 can join to form a ring;
- wherein LA is optionally linked with other ligands to comprise a tetradentate, pentadentate, or hexadentate ligand;
- M is Pt;
- and
- M is optionally coordinated to other ligands.
10 more elements
Dependencies are inferred from the claim text.