Abstract: Emissive devices are provided that include a phosphorescent emitter placed within a threshold distance of an enhancement layer to achieve transient lifetimes of 200 ns or less.

Abstract: Device structures are provided that include an OLED arranged in a stack with one or more additional layers that form a Tamm plasmon stack. The structure allows for coupling emitter excited state energy into the emissive Tamm plasmon mode.

Abstract: Provided is a compound having a formula of Ir(LA)p(LB)q(LC)r, wherein LA has a structure of Formula IA: LB has a structure of Formula IB; and LC is a bidentate ligand. In the compound p+q+r=3; each of moieties A, B, and D is a monocyclic ring or a polycyclic fused ring system; Z1 to Z4 and X1 to X8 are each C or N; two adjacent RC or RE are joined to form Formula II, Y1 and Y2 are each linking groups; Z is CRZ or N; each R, R?, RA, RB, RC, RD, RE, RF, and RZ is hydrogen or a General Substituent defined herein; and at least one of RA or RB comprises a silyl or germyl group. Formulations, OLEDs, and consumer products containing such compounds are also provided.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, moiety A is a heterocyclic fused ring system comprising a 5-membered ring fused to a 6-membered ring; moiety B is an aromatic ring or fused ring system; each RA and RB is independently a hydrogen or a General Substituent; K is a direct bond, O, or S; at least one of RA and RB comprises a substituent R comprising a silyl group or a germyl group; ligand LA is coordinated to a metal M, which has an atomic mass of at least 40; and metal M may be coordinated to other ligands. Formulations, OLEDs, and consumer products containing the same are also provided.

Abstract: A compound comprising a first ligand LA having a structure of Formula IA, is provided. In Formulae IA, moiety A is a monocyclic ring or a polycyclic fused ring system; X for each occurrence is independently C or N, with two adjacent of them being C and fused to moiety B through the two dotted lines; each of X1 to X5 is C or N; Y is a linking group; K is a direct bond or a linking group; and R1 is a substituent. If moiety A has a structure of Formula V, then (1) R2 has a structure of Formula VI, (2) R2 is a cycloalkyl or heterocycloalkyl group, or (3) R2 is an alkyl or heteroalkyl group, and two RB substituents are joined together to form a ring. Formulations, OLEDs, and consumer products containing such compounds are also provided.

Abstract: Devices and techniques are provided for achieving OLED devices that include one or more enhancement layers formed at least partially from a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to an organic emissive material in the organic emissive layer, where a majority of excited state energy is transferred from the organic emissive material to a non-radiative mode of surface plasmon polaritons of the enhancement layer.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, each of X1 to X6 is C or N; K is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); LA is coordinated to Ir through the indicated dashed lines; at least one of the following conditions is true: (1) R1 comprises at least five carbon atoms, and (2) two RB substituents are joined together to form a structure of Formula II, fused to ring B; X is CRX or N; Y is selected from a variety of linkers; each R, R?, R?, R?, R?, RA, RB, RX, R1, and R2 is hydrogen or a General Substituent; and Ir may be coordinated to other ligands. Compositions, OLEDs, and consumer products including the compound are also provided.

Abstract: A compound including a first ligand LA of Formula I, is provided. In Formula I, moiety B is a fused polycyclic ring system; X1 to X4 are each C or N; K is a direct bond or a linker; LA is coordinated to a metal. Formulations, OLEDs, and consumer products containing such compounds are also provided.

Abstract: Provided is a compound of Formula Ir(LA)(LB)(LC), wherein LA is a ligand of Formula I LB is a ligand of Formula II and LC is a ligand of Formula III wherein a structure of Formula IV fused to the ligand LB of Formula II through two adjacent C of X1-X4.

Abstract: Embodiments of the disclosed subject matter provide an apparatus having a device with a micronozzle array disposed on a micro-fabricated fluidic die. The device may include a first gas distribution plate and a second opposing plate, where the micro-fabricated fluidic die is disposed between the first gas distribution plate and the second opposing plate, wherein the first gas distribution plate is irreversibly joined to the micronozzle array with a seal that is gas-tight, and where the first gas distribution plate includes a plurality of sealed flow paths. A manifold may be reversibly joined to the first gas distribution plate, where the micro-fabricated fluidic die and the first gas distribution plate and the second opposing plate are disposed between the manifold. A thermally conductive plate may have at least one window that provides a clearance fit for the device across a range of motion relative to the thermally conductive plate.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, each of X1 to X8 is C or N; is a single bond or a double bond; K is a direct bond or a linking group; RA, RB, and RC are each hydrogen or a General Substituent; LA is coordinated to a metal M, having an atomic weight of at least 40; any two substituents may be joined or fused to form a ring; and (i) two RA substituents are joined to form a ring fused to ring A, (ii) two RB substituents are joined to form a ring fused to ring B, or (iii) both condition (i) and condition (ii). Formulations, OLEDs, and consumer products containing the same are also provided.

Abstract: This invention relates to the development of heterocyclic materials with high triplet excitation energy, which can be used as host materials in electroluminescent devices such as a PHOLED. The materials improve the performance of such devices by enhancing the lifetime and efficiency of the device when the newly developed heterocyclic materials are utilized as a host.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, moiety A is a fused polycyclic ring system; moiety B is a monocyclic ring or a fused polycyclic system; ring C is a 5-membered ring; ring D is a 6-membered ring; Y is N, B, or P; each of Z1 to Z4 is C or N; X1 is CR1 or N; each of K1 and K2 is a direct bond or a linker; each R1, R2, R?, R?, RA, and RB is hydrogen or a General Substituent defined herein; and LA is joined to a metal M by the dashed lines. Formulations, OLEDs, and consumer products containing the compound are also provided.

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

Abstract: A transparent emissive device is provided. The device may include one or more OLEDs having an anode, a cathode, and an organic emissive layer disposed between the anode and the cathode. In some configurations, the OLEDs may be non-transparent. The device may also include one or more locally transparent regions, which, in combination with the non-transparent OLEDs, provides an overall device transparency of 5% or more.

Abstract: A compound comprising a first ligand LA of Formula I, In Formula I, moieties A, B, C, and D are each independently a monocyclic ring or a polycyclic fused ring system; each of Z1, Z2, and X1 to X7 is independently C or N; K is selected from a direct bond and a linker; each R?, R?, RA, RB, RC, and RD is hydrogen or a General Substituent defined herein; any two substituents may be joined or fused to form a ring; LA is joined to a metal M that has an atomic mass of at least 40; M may be coordinated to other ligands; and LA may be joined with other ligands. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature that includes at least one aromatic ring and at least one substituent R where each of the at least one R is of Formula I

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

Abstract: A compound comprising a first ligand LA comprising a structure of Formula I, is provided. In Formula I: moieties A and B are each a monocyclic ring or a polycyclic fused-ring system; each of Y1, Y2, Y3, and Y4 is independently a divalent, single atom long linker; each of L1 and L2 is independently a direct bond or a divalent, one atom ling linker; each RA, RB, or other substituent is hydrogen or a General Substituent defined herein; any two substituents may be joined or fused to form a ring; LA may be monodentate, bidentate, tridentate, tetradentate, pentadentate, or hexadentate; and LA is coordinated to a metal M and may be coordinated to other ligands. Formulations, OLEDs, and consumer products containing the compounds are also provided.

Abstract: The present invention includes a new series of heteroleptic iridium complexes that demonstrate high efficiency in OLED device.