Abstract: A compound of Formula I, is provided. In Formula I; ring A is a 5-membered or 6-membered aromatic ring; wherein Y1 is absent or a linking group; each of X1 to X3 is N or CR, and at least one of X1 to X3 is N; each of A1 to A5 is C or N; each R1, R2, R3, and R4 is independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof, and each R, R?, RA, RB, and RC is hydrogen or a General Substituent; and the compound is partially or fully deuterated.

Abstract: Provided are organometallic compounds including a ligand LA of a structure of Formula I Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Tetradentate platinum complexes including an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.

Abstract: Compounds comprising a first ligand LA of are disclosed. In LA, ring B is a 5- or 6-membered ring; Y is O, S, NRY, or CRYRY?; Z1 is O, S, NR, or CRR?; X1 is C or N; each R, R?, RY, RY?, RA, and RB is hydrogen or a substituent; LA is coordinated to a metal M by the dashed lines; any two of R, R?, RY, RY?, RA, and RB can be joined to form a ring; and with the proviso that the compound does not comprise Formula II, wherein each of Z? and Z? is C or N. Formulations, OLEDs, and consumer products containing the compound are also disclosed.

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.

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.

Abstract: High performance OLED that includes deuterated compounds in the emissive layer are disclosed. The OLED includes an anode; a cathode; and an emissive layer, disposed between the anode and the cathode. In the OLED, the emissive layer includes a first phosphorescent emitter and a first host; the first phosphorescent emitter is a metal complex; the first host is partially or fully deuterated; and at least one additional condition is true.

Abstract: A compound having a structure of Formula I, useful as a phosphorescent emitter in organic light emitting devices is disclosed. In Formula I, Ar1 and Ar2 are independently 5- or 6-membered aromatic rings; X1 to X11 are independently C or N; at least one of X1 to X11 is N; one of Z1 and Z2 is C, and the other one is N; when Z1 is N, X4 is C; L1, L2, and L3 are each linkers; at least one of L2 and L3 is present; each of R1 to R5, R?, and R? are independently hydrogen or a substituent. Formulations, OLEDs, and consumer products containing the same are also disclosed.

Abstract: Provided are organoboron compounds having Formula I: Also provided are formulations comprising these organoboron compounds. Further provided are OLEDs and related consumer products that utilize these organoboron compounds.

Abstract: Provided are organometallic compounds including a ligand LA of a structure of Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Novel organometallic complexes having a structure of Formula (VI) that are useful in organic light emitting devices are disclosed.

Abstract: A compound is provided that has a formula M(LA)m(LB)n, having the structure of Formula II, where LB is a different ligand from LA. In Formula II, M is Ir; m is 1 or 2, and m+n is 3; R is hydrogen, deuterium, alkyl, cycloalkyl, or a combination; each R1 and R2 is independently hydrogen, deuterium, alkyl, cycloalkyl, aryl, and combinations thereof; and LB is selected from a variety of phenyl-imidazole and pyridinyl-dibenzofuran the ligands. OLEDs and consumer products containing the compound are also provided.

Abstract: Provided are organoboron compounds having Formula I: Also provided are formulations comprising these organoboron compounds. Further provided are OLEDs and related consumer products that utilize these organoboron compounds.

Abstract: A compound of Formula I is disclosed. In the structure of Formula I, ring A and ring B are 5- or 6-membered rings; L1, L2, L3, and Z are each linking groups; a, b, and c are each 0 or 1, and a+b+c=2 or 3; K1, K2, K3, and K4 are each a direct bond, O, or S; Z1 to Z6 and X1 to X5 are each C or N; W is a linking group comprising 3 to 5 linking atoms, which can be further substituted; M is Pd or Pt; each RA, RB, RC, RD, RE, R, and R? is selected from H or a variety of substituents, and can be joined to another substituent for form a ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

Abstract: A compound of Formula (I) Ring A, ring C, ring E and ring F are independently a 5-membered or 6-membered heterocyclic ring; ring B and ring D are independently a 5-membered, or 6-membered, carbocyclic or heterocyclic ring; and Z1 and Z2 are independently an anionic coordinating atom selected from the group consisting of C and N.

Abstract: Provided are novel compounds having a structure of Formula II that are useful as emitters in OLEDs.

Abstract: The present invention is directed toward platinum complexes of Formula I and Formula II. Platinum compounds of Formula I and Formula II may be useful in a variety of devices, such as, for example organic light emitting diodes (OLEDs), luminescent devices and displays, and other light emitting devices. The compounds can provide improved efficiency, improved operational lifetimes, or both in lighting devices as compared to conventional materials.

Abstract: A compound of Formula I, is provided. In Formula I, moiety A is a monocyclic ring or a polycyclic fused ring system; each of X1 to X2 and Z1 to Z3 is independently C or N; Y1 is C, N, O, S, Se, P, or As; K is a direct bond or a linker; each of A1 and A2 is C, Si, N, P, or As; each of L1, L2, and L3 is absent, a direct bond, or a linker; at least one of L1 to L4 is present; when L3 is present, X11 is C, whereas if L3 is absent, X11 is C or N; M is Pt or Pd; each R1, R2, RA, RB, RC, RD, R?, and R? is hydrogen or a General Substituent defined herein and R* is a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound of Formula I is disclosed. In the structure of Formula I, ring A and ring B are 5- or 6-membered rings; L1, L2, L3, and Z are each linking groups; a, b, and c are each 0 or 1, and a+b+c=2 or 3; K1, K2, K3, and K4 are each a direct bond, O, or S; Z1 to Z6 and X1 to X5 are each C or N; W is a linking group comprising 3 to 5 linking atoms, which can be further substituted; M is Pd or Pt; each RA, RB, RC, RD, RE, R, and R? is selected from H or a variety of substituents, and can be joined to another substituent for form a ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

Abstract: Provided are organometallic compounds including a ligand LA of the following Formula I Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.