Abstract: A compound having a structure of Formula I, is provided. In Formula I, moiety A is a monocyclic ring or a polycyclic fused ring system; M is Pt or Pd; each of X1 to X18, T1 to T4, Z1, and Z2 is C or N; C* is a carbene carbon; each of A1 and A2 is a linking atom; Y1 is a linking atom; each of L1 and L2 is a direct bond or a linking atom; each of K1 to K4 is a direct bond or a linking atom; and each R is hydrogen or a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound of formula Ir(LA)x(LB)y including a structure of Formula I, is provided herein. In Formula I, each of x and y is independently 1 or 2, and x+y=3; each of X1 to X17 is C or N; each R1, R2, R3, R4, RA, RB, RC, RD, and RE is hydrogen or a General Substituent defined herein; at least one of R1 to R4 is not hydrogen, deuterium, or halogen; and the combination of a pair of one R1 or R2 and one R3 or R4 has a combined Van der Wall surface area greater than 210.6 ?2 and one of the pair has a cone angle of at least a target cone angle, where the target cone angle is 35 degrees. Formulations, OLEDs, and consumer products containing the compound are also provided.

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: Provided are organic or organometallic compounds comprising a structure comprising at least three 6-membered rings and a 5- or 6-membered ring which are all fused to a central at least 8-membered ring. Also provided are formulations comprising these organic or organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organic or organometallic compounds.

Abstract: A compound is provided that has a first ligand LA comprising a structure of Formula I, where at least one of a moiety B or moiety C has a structure of Formula II, fused thereto. In Formulas I and II, each of moiety B to moiety D is a monocyclic ring or a polycyclic fused ring system; m is 0, 1, 2, or 3; Z is C or N; K is a direct bond or a linking group; n is 1, 2, or 3; each of R?, R?, RA, RB, RC, RD, and RE is hydrogen or a General Substituent defined herein; and LA is coordinated to a metal M by the dashed lines in Formula I. Formulations, OLEDs, and consumer products containing the compound are also provided.

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

Abstract: Provided are compounds having a first ligand LA having a structure of Formula I: that are useful in OLED application and provide improved OLED properties.

Abstract: The present disclosure provides a metal coordination complex compound. The metal complex compound is capable of functioning as an emitter in an organic light emitting device (OLED) at room temperature, and has a vertical dipole ratio (VDR) greater than 0.33 in the OLED. Formulations, OLEDs, and consumer products including the same are also provided.

Abstract: A compound comprising a first ligand LA of Formula I, In Formula I, X1 to X7 are each C or N; K1 is a direct bond or a linker; R1 and R2 are substituents; each R3, R4, R5, R?, R?, RA, RB, and RC is hydrogen or a General Substituent defined herein; LA is coordinated to a metal M; when R1 is substituted or unsubstituted aryl, specific conditions must be met, and when R1 is alkyl, other conditions must be met. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided is a composition A that includes: a first dopant; and a first host; where the first dopant has a HOMO energy HOMODopant and a LUMO energy LUMODopant; the first host has a HOMO energy HOMOHost and a LUMO energy LUMOHost; |LUMOHost?HOMODopant|=X1; |LUMODopant?HOMOHost|=X2; the first dopant has an optical bandgap energy, Y; at least one of X1 and X2 is less than or equal to Y+0.026 eV; the composition A has a vertical dipole ratio VDR(A); composition B is a reference composition comprising the first dopant and a second host, wherein the second host is the composition B having a vertical dipole ratio VDR(B); the ratio of the first dopant and the first host in the composition A is identical to the ratio of the first dopant and second host in the composition B; and VDR(A)?VDR(B) is ?0.05.

Abstract: The present disclosure provides a metal coordination complex compound. The metal complex compound is capable of functioning as an emitter in an organic light emitting device (OLED) at room temperature, and has a vertical dipole ratio (VDR) greater than 0.33 in the OLED. Formulations, OLEDs, and consumer products including the same are also provided.

Abstract: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.

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

Abstract: The present disclosure provides a metal coordination complex compound. The metal complex compound is capable of functioning as an emitter in an organic light emitting device (OLED) at room temperature, and has a vertical dipole ratio (VDR) greater than 0.33 in the OLED. Formulations, OLEDs, and consumer products including the same are also provided.

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

Abstract: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.

Abstract: A compound of Formula M(L1)(L2)x(L3)y that functions as an OLED emitter and has a peak wavelength emission energy is provided. In Formula M(L1)(L2)x(L3)y, M is a metal atom; L1, L2, and L3 are bidentate ligands; x is 1 or 2; y is 0 or 1; M(L1)3, M(L2)3, and M(L3)3 have first triplet excited state energies of T1(L1), T1(L2), and T1(L3), respectively; where T1(L1) < T1(L2), and T1(L2) ? T1(L3) when L3 is present. The compound has an energy gap parameter, T1(L2) - T1(L1), of at least 0.13 eV; and a calculated angle between the rod-like axis and the transition dipole moment (TDM) vector is less than 20 degrees. Also provided is a compound of Formula M(L1*)(L2)x(L3)y wherein the compound is defined herein.

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: 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: 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.