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US 11,910,708 B2Granted
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsJui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji
Life of this patent
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Abstract
A compound including a first ligand LA selected from the following group: is disclosed.
Claims11
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 a formula of M(LA)2(LC);
- wherein ligand LA is selected from the group consisting of:
- wherein A is a 5- or 6-membered aromatic ring;
- wherein Y1-Y9 are each independently selected from the group consisting of C and N;
- wherein Z is C or N;
- wherein M is selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Au, and Cu;
- wherein RA, RB, RC, and RD represent mono to a maximum possible number of substitutions, or no substitution;
- wherein each 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, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein at least one RD is fluorine;
- wherein any two RA substituents can be joined or fused together to form a ring;
- wherein the organic layer is an emissive layer and the compound is an emissive dopant;
- wherein the organic layer further comprises a host;
- wherein the host comprises at least one chemical group selected from the group consisting of naphthalene, triazine, carbazole, dibenzofuran, and dibenzothiophene;
- and
- wherein LC has the structure
- wherein Ra, Rb, and Rc are each independently a hydrogen or a substituent selected from the group consisting of deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof.
16 more elements
An emissive layer comprising:
- a host comprising at least one chemical group selected from the group consisting of naphthalene, triazine, carbazole, dibenzofuran, and dibenzothiophene;
- and
- an emissive dopant;
- wherein the emissive dopant is a compound having a formula of M(LA)2(LC);
- wherein ligand LA is selected from the group consisting of:
- wherein A is a 5- or 6-membered aromatic ring;
- wherein Y1-Y9 are each independently selected from the group consisting of C and N;
- wherein Z is C or N;
- wherein M is selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Au, and Cu;
- wherein RA, RB, RC, and RD represent mono to a maximum possible number of substitutions, or no substitution;
- wherein each 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, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein at least one RD is fluorine;
- wherein any two RA substituents can be joined or fused together to form a ring;
- wherein the organic layer is an emissive layer and the compound is an emissive dopant;
- wherein the organic layer further comprises a host;
- wherein the host comprises at least one chemical group selected from the group consisting of naphthalene, triazine, carbazole, dibenzofuran, and dibenzothiophene;
- and
- wherein LC has the structure
- wherein Ra, Rb, and Rc are each independently a hydrogen or a substituent selected from the group consisting of deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof.
16 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 a formula of M(LA)2(LC);
- wherein ligand LA is selected from the group consisting of:
- wherein A is a 5- or 6-membered aromatic ring;
- wherein Y1-Y9 are each independently selected from the group consisting of C and N;
- wherein Z is C or N;
- wherein M is selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Au, and Cu;
- wherein RA, RB, RC, and RD represent mono to a maximum possible number of substitutions, or no substitution;
- wherein each 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, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein at least one RD is fluorine;
- wherein any two RA substituents can be joined or fused together to form a ring;
- wherein the organic layer is an emissive layer and the compound is an emissive dopant;
- wherein the organic layer further comprises a host;
- wherein the host comprises at least one chemical group selected from the group consisting of naphthalene, triazine, carbazole, dibenzofuran, and dibenzothiophene;
- and
- wherein LC has the structure
- wherein Ra, Rb, and Rc are each independently a hydrogen or a substituent selected from the group consisting of deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof.
16 more elements
Dependencies are inferred from the claim text.