A compound of Formula Ir(L.sub.A)(L.sub.B)(L.sub.C) is disclosed. In Formula Ir(L.sub.A)(L.sub.B)(L.sub.C), L.sub.A has Formula I,

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L.sub.B has Formula II,

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L.sub.C is a monoanionic bidentate ligand that does not comprise a phenylpyridine ligand; and each of L.sub.A, L.sub.B, and L.sub.C is different. Each of moieties A, C, and D is independently a monocyclic ring or a polycyclic fused ring structure or 5-membered and/or 6-membered rings; each of X.sup.1 to X.sup.6 is C or N; each of Z.sup.1 and Z.sup.2 is C or N; at least one of Z.sup.1 and Z.sup.2 is N; each R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently a hydrogen or a General Substituent; and any two adjacent substituents can be joined or fused together to form a ring. Formulations, OLEDs, and consumer products including the compound are also disclosed.

Disubstituted diaryloxybenzoheterodiazole compound having general formula (I) or (II) wherein—Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR.sub.6 group wherein R.sub.6 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups, or from optionally substituted aryl groups;—R.sub.1, R.sub.2 and R.sub.3, identical or different, represent a hydrogen atom; or are selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups optionally containing heteroatoms, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkoxy groups, optionally substituted phenoxy groups, or a cyano group; or R.sub.1, R.sub.2, may optionally be bound together to form, together with the carbon atoms to which they are bound, a saturated, unsaturated or aromatic, cyclic or polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, optionally containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorus, selenium;—or R.sub.2 and R.sub.3, may optionally be bound together so as to form, together with the carbon atoms to which they are bound, a saturated, unsaturated or aromatic, cyclic or polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, optionally containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorus, selenium;—R.sub.4, identical or different, represent a hydrogen atom; or are selected from linear or branched, preferably linear, C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups;—R.sub.5, identical or different, are selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups, optionally containing heteroatoms, optionally substituted cycloalkyl groups;—n and m, identical or different, are 0 or 1, provided that at least one of n and m is 1. Said diaryloxybenzoheterodiazole compound having general formula (I), as such or after (co)polymerization, and said disubstituted diaryloxybenzoheterodiazole compound having general formula (II) as such, may be advantageously used as spectrum converters in luminescent solar concentrators (LSCs), which are in turn able to improve the performance of photovoltaic devices (or solar devices) selected, for example, from photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), on both rigid and flexible supports.

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Specifically substituted aza-dibenzofurans and aza-dibenzothiophenes of formula (I) and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the specifically substituted aza-dibenzofurans and aza-dibenzothiophenes may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices. In formula (I) Y is S or O; one of X.sup.1-X.sup.8 is N; another X.sup.1-X.sup.8 is C-L(R.sup.9)—[X.sup.9X.sup.10X.sup.11]Ring; and the remaining X.sup.1-X.sup.8 are CR.sup.1-CR.sup.8 wherein R.sup.1-R.sup.8 are independently H, alkyl, alkenyl, aryl, etc. ##STR00001##

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having excellent thermal stability, low driving voltage, high luminous efficiency, and/or improved lifespan properties.

The present invention relates to an organic electronic device and a compound comprised therein wherein the compound is represented by the Formula (I): HAr-L-Ar.sub.1—(—R.sup.1).sub.m.

The present invention discloses cyclometalated iridium compounds wherein at least one of the monoionic ligands is substituted with an aromatic group at the ortho position of Ir-carbon bond. The compounds may be useful in organic electroluminescence devices.

Disubstituted diaryloxybenzoheterodiazole compound of general formula (1): in which:—Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR.sub.5 group in which R.sub.5 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups, or from optionally substituted aryl groups;—R.sub.1, R.sub.2 and R.sub.3 are as defined in the claims. The said disubstituted diaryloxybenzoheterodiazole compound of general formula (I) can advantageously be used as a spectrum converter in luminescent solar concentrators (LSCs) which are in turn capable of improving the performance of photovoltaic devices (or solar devices) selected, for example, from photovoltaic cells (or solar cells), photovoltaic modules (or solar modules) on either a rigid substrate or a flexible substrate. ##STR00001##

The present application relates to an electrochromic composite, an electrochromic device comprising the same, and a method for manufacturing an electrochromic device.

The present invention is directed to a polyolefin composition comprising carbon black which shows fluorescence when irradiated with UV light. The polyolefin composition of the present invention comprises a polyolefin, carbon black in an amount of 0.25 to 1.0 wt %, an optical brightener in an amount of 0.001 to 0.1 wt %, and a UV agent. The present invention is further directed to a molded article comprising the polyolefin composition of the present invention. The present invention is further directed to a wire or cable comprising an outer layer comprising the polyolefin composition of the present invention. Finally, the present invention is directed to a method for detection of a polyolefin composition by UV light and to a method for detection of a molded article or a wire or cable by UV light.

A dual host system for OLEDs that contains hole-transporting indolocarbazole and electron-transporting indolocarbazole exhibiting superior performance in the OLEDs is disclosed.