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US 2026/0225916 A1Published application
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsHSIAO-FAN CHEN, PETER WOLOHAN
Life of this patent
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Abstract
Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
Claims20
A compound comprising a ligand LA of
- wherein:
- Z1-Z2 are each independently C or N with one being N and the other C;
- ring B is a 5-membered or 6-membered aromatic ring;
- X is C or N;
- each of X1—X7 is independently C or N;
- at least two of adjacent X1—X3 are C, and are fused to a structure of
- each of K1 and K2 is independently a direct bond, O, or S;
- Y is selected from the group consisting of O, S, Se, BR, NR, CRR′, and SiRR′;
- each of RA, RB, RC, and RD independently represents zero, mono, or up to the maximum allowed number of substitutions to its associated ring;
- each of R, R′, RA, RB, RC, and RD is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- any two adjacent R, R′, RA, RB, RC, or RD can be joined or fused together to form a ring;
- wherein the ligand LA can be coordinated to a metal M selected from the group consisting of Ru, Os, Ir, Pd, Pt, Cu, Ag, and Au;
- and
- wherein the ligand LA can be joined with other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand.
11 more elements
An organic light emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound comprising a ligand LA of
- wherein:
- Z1-Z2 are each independently C or N with one being N and the other C;
- ring B is a 5-membered or 6-membered aromatic ring;
- X is C or N;
- each of X1—X7 is independently C or N;
- at least two of adjacent X1—X3 are C, and are fused to a structure of
- each of K1 and K2 is independently a direct bond, O, or S;
- Y is selected from the group consisting of O, S, Se, BR, NR, CRR′, and SiRR′;
- each of RA, RB, RC, and RD independently represents zero, mono, or up to the maximum allowed number of substitutions to its associated ring;
- each of R, R′, RA, RB, RC, and RD is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- any two adjacent R, R′, RA, RB, RC, or RD can be joined or fused together to form a ring;
- wherein the ligand LA can be coordinated to a metal M selected from the group consisting of Ru, Os, Ir, Pd, Pt, Cu, Ag, and Au;
- and
- wherein the ligand LA can be joined with other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand.
15 more elements
Dependencies are inferred from the claim text.