The present disclosure provides a novel compound of formula (I) and organic electroluminescent devices using the same:

##STR00001##

wherein, X.sub.1 and A.sub.1 each independently represent a substituted or unsubstituted (C6-C30) aryl, a substituted or unsubstituted 5- to 30-membered heteroaryl; and n is an integer of 1 or 2, and when n is 1, X.sub.1 is the substituted or unsubstituted (C6-C30) aryl.

A compound comprising a ligand L.sub.A of Formula I,

##STR00001##

where G has a structure of

##STR00002##

is disclosed. In ligand L.sub.A, Ring C is a 5-membered or 6-membered ring; K is a direct bond, O, or S; when K is O or S, X.sup.6 is C; each of R.sup.A, R.sup.B, and R.sup.C is H or a substituent, and can be joined together to form a ring; each of X.sup.1 to X.sup.6 is independently C or N; X.sup.1 is C if it is connected to ring C; the R.sup.B substituents of at least two adjacent ones of X.sup.2 to X.sup.5 are joined to form a ring; and the ligand L.sub.A is complexed to Ir through the two indicated dash lines to form a 5-membered chelate ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

Luminescent solar concentrator (LSC) comprising at least one disubstituted benzoheterodiazole compound of general formula (I), in which: Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR.sub.6 group in which 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, which are the same 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, alkoxyl groups, optionally substituted phenoxyl groups, or —COOR.sub.7 groups or —OCOR.sub.7 groups in which R.sub.7 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups, or is a cyano group, provided that when the substituents R.sub.1 represents a hydrogen atom, at least one of the substituents R.sub.2 and R.sub.3 represents an optionally substituted aryl group or an optionally substituted phenoxyl group; or R.sub.1 and R.sub.2, can optionally be linked together so as to form, together with the carbon atoms to which they are linked, a saturated, unsaturated or aromatic cyclic ring or a 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 can optionally be linked together so as to form, together with the carbon atoms to which they are linked, a saturated, unsaturated or aromatic cyclic ring or a 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 and R.sub.5, which are the same 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, alkoxyl groups, —COOR.sub.7 groups or —OCOR.sub.7 groups in which R.sub.7 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.1-C.sub.8, alkyl groups, or is a cyano group; or R.sub.4 and R.sub.5, can optionally be linked together so as to form, together with the carbon ato

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##

Disclosed herein are an iridium complex having improved luminous efficiency and emission lifetime, a method for producing the same, an organic electroluminescent element using the iridium complex, and a display device and a lighting device that include the organic electroluminescent element. The iridium complex is contained in at least one organic layer sandwiched between an anode and a cathode of an organic electroluminescent element, and has a coefficient of external influence of 0.73 Å.sup.2/MW or less as defined by the following definition equation:
Coefficient of external influence (Svdw)=Van der Waals surface area [Å.sup.2]/molecular weight (MW).

Provided is an organic electronic element comprising a hole transport layer containing a compound of Formula (1) and an emitting auxiliary layer containing a compound of Formula (2), capable of improving the light emitting efficiency, stability, and life span of an electronic device using the same.

Described herein are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moiety D, each moiety D is covalently attached to either the moiety B or the moiety A, and each moiety B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D, and B are defined herein.

An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes: i) a hole transport region between the first electrode and the emission layer, and including at least one selected from a hole injection layer, a hole transport layer, an emission auxiliary layer, and an electron blocking layer, and ii) an electron transport region between the emission layer and the second electrode and including an electron transport layer, in addition to at least one selected from a hole blocking layer, an electron control layer, a buffer layer, and an electron injection layer, wherein the electron transport region includes a compound represented by Formula 1:

##STR00001##

The present invention relates to novel light-emitting materials. These materials comprise a side chain that includes a fully deuterated or partially deuterated alkyl chain. This new side chain could improve device lifetime compared to nondeuterated side chains.

An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar.sub.1 to Ar.sub.4 is a heterocyclic group represented by the following formula (2) wherein X.sub.1 is an oxygen atom or a sulfur atom. ##STR00001##