Provided are compounds that include a ligand L.sub.A of the following Formula III:

##STR00001##

that contain heavy elements like Sb, Bi, Ge, or Te. Also provided are formulations including such compounds. Further provided are OLEDs and related consumer products that utilize such compounds.

Platinum, palladium, and gold complexes suitable for use as phosphorescent emitters or as delayed fluorescent and phosphorescent emitters having one of the following structures:

##STR00001## ##STR00002##

The present invention relates to a compound suitable as ligand for binding to the surface of a semiconductor nanoparticle, said compound comprising an anchor group, a linker group and an organic functional group; a semiconductor nanoparticle have said ligand attached to the outermost particle surface; a composition, a formulation and a process for the preparation of said semiconductor nanoparticle; and an electronic device.

The present application provides a luminescent material, a method for manufacturing the luminescent material and a luminescent device, the method includes providing a first reactant and a second reactant, reacting the first reactant and the second reactant to generate a mixture containing the luminescent material, separating and purifying the mixture containing the luminescent material to obtain the luminescent material.

Provided is an organic light-emitting device including: an anode; a cathode facing the anode; and an organic layer arranged between the anode and the cathode and including an emission layer and an auxiliary layer, wherein the emission layer is in direct contact with the auxiliary layer, the emission layer includes a dopant, the auxiliary layer includes a first compound and a second compound, and the dopant, the first compound, and the second compound satisfy a certain equation.

The invention relates to an organic molecule for optoelectronic devices. According to the invention, the organic molecule has: —a chemical moiety with a structure of formula I: and—one or two second chemical moieties with a structure of formula II: wherein R.sup.I, R.sup.II, R.sup.III, R.sup.IV, R.sup.V, R.sup.VI, R.sup.VII, R.sup.VIII, R.sup.IX, and R.sup.X are at each occurrence independently selected from the group consisting of the binding site of a single bond linking the first chemical moiety to the second moiety, hydrogen, deuterium, OPh, SPh, CF.sub.3, CN, F, Si(C.sub.1-C.sub.5-alkyl).sub.3, Si(Ph).sub.3, C.sub.1-C.sub.5-alkyl, C.sub.1-C.sub.5-alkoxy, C.sub.1-C.sub.5-thioalkoxy, C.sub.2-C.sub.5-alkenyl, C2-C5-alkynyl, C.sub.6-C.sub.18-aryl, C.sub.3-C.sub.17-heteroaryl, N(C.sub.6-C.sub.18-aryl).sub.2, N(C.sub.3-C.sub.17-heteroaryl).sub.2; N(C.sub.3-C.sub.17-heteroaryl)(C.sub.6-C.sub.18-aryl); the dashed lines “Formula III” in formula II represent the binding sites of the first chemical moiety to the second chemical moiety; Z is at each occurrence independently selected from the group consisting of a direct bond, CR.sup.3R.sup.4, C═CR.sup.3R.sup.4, C═O, C═NR.sup.3, NR.sup.3, O, SiR.sup.3R.sup.4, S, S(O) and S(O).sub.2; Ar.sup.1 is C.sub.6-C.sub.60-aryl, which is optionally substituted with one or more substituents R.sup.6; wherein either R.sup.V and R.sup.VI, or R.sup.VI and R.sup.VII represent the binding sites of a single bond linking the first chemical moiety to the second chemical moiety to form a ring.

##STR00001##

An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a compound represented by Formula 1 below. Embodiments of the present disclosure exhibit improved emission efficiency and long life characteristics: ##STR00001##

Materials are provided for use as active emissive layers in organic electronic devices such as light-emitting filed effect transistors. Light-emitting transistors (LET) are an alternative to light-emitting diodes and have several important benefits, however, materials developed specifically for LET are quite scarce. Herein a new family of materials is disclosed that has been developed specifically for LET.

A compound of Formula Ir(L.sub.A).sub.n(L.sub.B).sub.m(L.sub.C).sub.p is provided where m and n are 1 or 2, p is 0 or 1, and m+n+p=3. Ligand L.sub.A has a structure of

##STR00001##

ligand L.sub.B has a structure of

##STR00002##

and ligand L.sub.C is a bidentate ligand. In the compound, ring A′ is a ring or is absent; each of R.sub.1 and R.sub.1′ is alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, silyl, germyl, or a combination thereof; moiety C is a monocyclic ring or a fused ring system; each of Z.sup.1 and Z.sup.2 and X.sup.1 to X.sup.11 is independently C or N, except that X.sup.12 and X.sup.13 are C if ring A′ is present; each R.sup.A, R.sup.A′, R.sup.B, R.sup.C, and R.sup.D is hydrogen or one of the General Substituents; and at least one R.sup.C or R.sup.D comprises an electron withdrawing group. Formulations, OLEDs, and consumer products containing the compound are also provided.

An aromatic compound which improves emission efficiency and an organic electroluminescence device including the same are provided. The organic electroluminescence device includes: a first electrode; a second electrode opposite to the first electrode; and a plurality of organic layers between the first electrode and the second electrode, where at least one organic layer among the plurality of organic layers includes the aromatic compound. The aromatic compound is represented by Formula 1 below. ##STR00001##