Abstract: Provided is an OLED having an emissive region having a first compound and a second compound. The first compound is capable of energy transfer to the second compound. The first compound is capable of functioning as a TADF emitter in an OLED at room temperature, wherein the first compound includes a boron atom possessing a trigonal planar coordination geometry. The first compound has a first singlet state S1, a first triplet state T1, and a second triplet state T2 energies; and the second compound is a fluorescent compound functioning as an emitter in the OLED at room temperature.

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: A compound comprising a ligand LA comprising a moiety L having a structure of Formula I is provided. In Formula I, LA coordinated to a metal M; A1 is selected from B, N, P, P?O, P?S, Al, Ga, SiR?, GeR?, and SnR?; where rings A, B, and C are 5- or 6-membered rings; Y1, Y2, and Y3 are selected from direct bonds, the metal M, and a variety of linkers; a+b+c=2 or 3; and one of a number of specific conditions is met. OLED devices, consumer products, and formulations including the compound are also provided.

Abstract: A compound including a first ligand LA of Formula I, is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X1, X2, and X3 are each CRA or N; R is a 5- or 6-membered carbocyclic or heterocyclic ring, which can be further fused or substituted; and (1) when ring B is an unfused 6-membered ring, X1 and X2 are N, and X3 is C; and (2) when ring B is a fused 6-membered ring, ring B has the structure of Formula II, In this structure, the wavy line indicates the point of connection to ring A; Q1 to Q6 are each C or N; and, when proviso (2) applies, (I) at least one of X1, X2, and X3 is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) at least ring A or R is substituted with a partially or fully deuterated alkyl or partially or fully deuterated cycloalkyl group.

Abstract: Provided are organoboron compounds. Also provided are formulations comprising these organoboron compounds. Further provided are OLEDs and related consumer products that utilize these organoboron 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: Provided are 2-coordinate metal complexes compounds as sensitizers of fluorophores. Also provided are formulations comprising these 2-coordinate metal complexes compounds. Further provided are OLEDs and related consumer products that utilize these 2-coordinate metal complexes compounds. The OLED includes an emissive region that contains a first compound that is a sensitizer having a structure of Formula I: and an acceptor.

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 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 as both sensitizer and as acceptor. 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: Provided are compounds of Formula I that are useful as emitters in OLEDs.

Abstract: The co-linear or near co-linear structure of bimetallic Janus-type two-coordinated metal complexes may allow for a large transition dipole moment that can enhance the radiative lifetime. The symmetric nature of the bimetallic Janus complexes diminishes or eliminates the polar nature of the monometallic carbene-metal-amide/arene complexes.

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: A compound of Formula I: wherein ring A is a 5-membered or 6-membered aromatic ring; wherein RA, RB, and RC each independently represent mono to the maximum allowable substitution, or no substitution; wherein Y1 is absent or present, and when present is selected from the group consisting of a direct bond, O, S, Se, CRR?, NR, SiRR?, and BR; wherein each X1-X3 is N or CR; wherein at least one of X1-X3 is N; wherein each A1-A5 is independently C or N; wherein the maximum number of N atoms that can connect to each other within each ring is two; wherein each R1, R2, R3, and R4 is independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof; wherein each R, R?, RA, RB, and RC is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroa

Abstract: A compound selected from the group consisting of Formula I, Formula II, and Formula III, wherein ring A, ring B, and ring C are independently a five-membered or six-membered, carbocyclic or heterocyclic ring, each of which is optionally aromatic; ring W of Formula I is a 6-membered heterocyclic ring, and ring W of Formula II or Formula III is a 5-membered or 6-membered heterocyclic ring; L is a monodentate ligand with a metal coordinating member selected from the group consisting of C, N, O, S, and P; and M is a metal selected from the group consisting of Cu, Au, and Ag.

Abstract: A compound having a structure according to wherein Y is a carbene moeity coordinated to a trivalent copper atom Cu is disclosed. In Formula I, L1, L2, and L3 are three monodentate ligands. In Formula II, L1, L2, and L3 represent a single tridentate ligand chelated by X, wherein X is B—H, C—H, N, P, or P?O.

Abstract: A compound having a structure according to wherein Y is a carbene moeity coordinated to a trivalent copper atom Cu is disclosed. In Formula I, L1, L2, and L3 are three monodentate ligands. In Formula II, L1, L2, and L3 represent a single tridentate ligand chelated by X, wherein X is B—H, C—H, N, P, or P?O.