Patent ID: 11937503
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A composition comprising a first compound;
wherein the first compound is capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature;
wherein the first compound has a formula of M(L1)x(L2)y(L3)z;
wherein L1, L2, and L3 can be the same or different;
wherein x is 1, 2, or 3;
wherein y is 0, 1, or 2;
wherein z is 0, 1, or 2;
wherein x+y+z is the oxidation state of the metal M;
wherein L1, L2, and L3 are each bidentate ligands, and L1 is selected from the group consisting of:, wherein each X1 to X13 are independently selected from the group consisting of carbon and nitrogen;
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 R′ and R″ are optionally fused or joined to form an aromatic ring;
wherein each Ra, Ra′, Rb, Rc, and Rd may represent from mono substitution to a maximum possible number of substitutions, or no substitution;
wherein R′, R″, Ra, Ra′, Rb, Rc, and Rd are each independently a hydrogen or a substituent selected from the group consisting of 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 any two adjacent substitutents of Ra, Rb, Rc, and Rd are optionally fused or joined to form an aromatic ring or form a multidentate ligand;
wherein no two substituents Ra′ are fused or joined to form a ring; and
wherein at least one Ra, Ra′, Rb, Rc, or Rd present in the first compound includes at least one substituent R of Formula I:, wherein the dashed line represents a single bond;
wherein R1 is fluorine or a partially or fully fluorinated moiety selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, and combination thereof;
wherein R2 represents mono to a maximum possible number of substitutions;
wherein each R2 is a hydrogen or a substituent selected from the group consisting of 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;
at least one R2 comprises at least one fluorine atom;
wherein L is an organic linker or direct bond;
wherein any two R1, R2 substituents may be joined or fused together to form a ring; and
wherein n is an integer from 2 to 10.