Abstract: Provided are compounds of Formula I that are useful as emitters in OLEDs.

Abstract: Provided are organic compounds comprising at least one germy or silyl group which is attached to a 6-membered aromatic carbocyclic or heterocyclic ring. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic compounds.

Abstract: Provided are organic compounds comprising a nitrogen-containing 5-membered aromatic or non-aromatic ring, wherein the ring nitrogen is a tertiary nitrogen having bonds to three different carbon atoms. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organic compounds.

Abstract: Provided are organic compounds comprising a boron atom which is part of two 6-membered rings which are fused together and to which at least three further 6-membered aromatic rings are fused. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic 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: Provided are compounds of Formula I that are useful as emitters in OLEDs.

Abstract: A compound of the following Formula I is provided. In Formula I, A is C, B, Si, Ge, or Sn; each of X1 to X22 is independently C or N; Z1 and Z2 are each independently B or N; when A is B, one of X4, X5, X12, and X22 is N, and the remainder are C; when A is C, at least one of Z1 and Z2 is B; each of Y1, Y2, Y3, and Y4 is independently O, S, Se, NR, CRR?, SiRR?, GeRR?, and SnRR?; one of both of Y1 and Y2 are present; one of both of Y3 and Y4 are present; each R, R?, RA, RB, RC, RD, RE, and RF is independently hydrogen or a variety of substituents; and any two adjacent R, R?, RA, RB, RC, RD, RE, and RF can be joined or fused to form a ring. Devices, consumer products, and formulations including the compound are also disclosed.

Abstract: Provided are organic compounds comprising a 6-membered aromatic heterocyclic or carbocyclic ring to which at least one silyl or germyl group is attached as well as a 5-membered nitrogen-containing ring. Also provided are formulations comprising these organic compounds. Purther provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organic compounds.

Abstract: Provided are organic compounds comprising at least two 6-membered aromatic rings which are connected together by a single bond and which are bond to a nitrogen atom of a 5-membered nitrogen-containing ring. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organic compounds.

Abstract: Provided are spiro-bisilepine compounds. Also provided are formulations comprising these spiro-bisilepine compounds. Further provided are OLEDs and related consumer products that utilize these spiro-bisilepine compounds.

Abstract: Provided is a new composition of matter for phosphorescent emitters containing a chelating ligand comprised of a fused heterocyclic structure containing boron. The disclosed ligands form two bonds to the metal forming a 6-membered chelate and can be further substituted to form tridentate or tetradentate ligands.

Abstract: Provided are compounds comprising a ligand LA of Formula I where the ligand LA is coordinated to Ir.

Abstract: Provided are organic compounds comprising a central seven-membered Ge or Si atom comprising ring to which three 6-membered carbocyclic aromatic groups are fused. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic compounds.

Abstract: Provided are organoboron compounds of that are useful as host material in OLEDs. Also provided are formulations comprising these organoboron compounds. Further provided are OLEDs and related consumer products that utilize these organoboron compounds.

Abstract: Provided are novel organic compounds having a structure of Formula I: Also provided are formulations having these organic compounds. Further provided are OLEDs and related consumer products that utilize these organic compounds.

Abstract: An organic light emitting device (OLED) comprising, sequentially an anode; a hole transporting layer; an emissive region; an electron transporting layer; and a cathode is provided. In the OLED, the emissive region comprises a compound S1 and a compound A1, where the compound S1 is an organometallic sensitizer that transfers energy to the compound A1, and the compound A1 is an acceptor that is an emitter; the compound A1 has an emission onset greater than 750 nm; and the PLQY of the emissive region comprising both compound S1 and compound A1 is greater than the PLQY of an equivalent emissive region without compound A1. Consumer products containing the OLED are also provided.

Abstract: An improved organic light emitting device is disclosed that includes an emissive layer between an anode and a cathode, where the emissive layer has an aggregate of one or more neutral transition metal complexes having a square planar geometry. At least one of the one or more neutral transition metal complexes has a coordination metal selected from Ni, Pd, and Au. When a voltage is applied across the anode and cathode at room temperature, the emissive layer emits a luminescent radiation that has a first luminescent radiation component produced from exciplex formation by the transition metal complexes present in the emissive layer, and the first luminescent radiation component has a peak maximum wavelength ?max that is ?500 nm at room temperature.

Abstract: A compound comprising a first ligand LA comprising a structure of Formula I, is provided. In Formula I, each of moiety A and moiety B is a monocyclic ring or a polycyclic fused ring system; each of X1 to X4 and Z1 to Z4 is C or N; at least one of X1 to X4 is N; each of K1 and K2 is a direct bond or a linker; Y is a linker; each R, R?, R?, R?, RA, RB, and RC is hydrogen or a substituent; LA is coordinated to a metal M; and at least one of five conditions related to X1 to X4 and/or RC is met. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are multi-NBN host compounds. The compound has the structure of Formula I: Also provided are formulations comprising these multi-NBN host compounds. Further provided are OLEDs and related consumer products that utilize these multi-NBN host compounds.

Abstract: Provided is an organic light emitting device comprising a light emitting stack that comprises: a first electrode; a second electrode; a first layer disposed between the first electrode and the second electrode; wherein the first layer is selected from the group consisting of hole injecting layer, hole transporting layer, electron blocking layer, emissive layer, hole blocking layer, electron transporting layer, and electron injecting layer; wherein the first layer comprises a first compound and a second compound mixed together; wherein the first compound comprises a first element (F1) selected from the group consisting of D, F, CN, Si, Ge, P, B, and Se; wherein the second compound comprises a first element (S1) selected from the group consisting of D, F, CN, Si, Ge, P, B, and Se; and wherein the first element of the first compound can be same or different from the first element (S1) of the second compound.