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.

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.

The present invention relates to compounds according to formula (1), a method for producing these compounds and electronic devices, in particular organic electroluminescent devices containing said compounds.

The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.

A compound that has the structure according to Formula M(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z is disclosed. In Formula M(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z, ligand L.sub.A is ##STR00001##
ligand L.sub.B is ##STR00002##
and ligand L.sub.C is ##STR00003##
and OLEDs and formulations containing these compounds are disclosed. In Formula M(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z: M is a metal; x is 1 or 2; X.sup.1-X.sup.4 and A.sup.1-A.sup.8 are C or N; at least one of A.sup.1-A.sup.8 is N; X is O, S, or Se; two adjacent R.sup.B form a six-member aromatic ring E fused to ring B; and each R.sup.A-R.sup.E and R.sup.1-R.sup.4 is independently hydrogen or a substituent.

A compound including a first ligand L.sub.A having the structure of Formula I,

##STR00001##

is disclosed. In Formula I, rings A and B are each a 6-membered rings; Z.sup.1 and Z.sup.2 are each carbon or nitrogen; each R.sup.A and R.sup.B is independently hydrogen or a variety of substituents; any two substituents are optionally joined or fused into a ring; at least one R.sup.A or R.sup.B comprises an aromatic group substituted by a bridge structure, and this R.sup.A or R.sup.B joins with an adjacent substituent and fuses to ring A or B; the bridge structure comprises a backbone structure that forms a fused first ring; the backbone structure is saturated, comprises at least one heteroatom, and is optionally further substituted; and the ligand L.sub.A is coordinated to a metal M that can be coordinated to other ligands.

An organic light-emitting device comprises an anode, a cathode and a light-emitting layer between the anode and the cathode. The light-emitting layer comprises a compound of formula (I): ##STR00001## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.6 and Ar.sup.7 in each occurrence independently represent an unsubstituted or substituted aryl or heteroaryl group; X independently in each occurrence represents S or O; R independently in each occurrence represents H or a substituent; p is 0 or 1; q is 0 or 1; f is 1, 2 or 3; g is 1, 2 or 3; and adjacent groups Ar.sup.3 or adjacent groups Ar.sup.2 may be linked by a divalent group to form a ring. This compound can provide a bluer emitter that can be blended into current host formulations (deep blue, CIEy<0.08) suitable for solution processing.

There is disclosed a compound having Formula I, Formula II, Formula III, Formula VIII, Formula IX, or Formula X

##STR00001##

The variables are described in detail in the application.

A dye loaded zeolite composite material comprises a plurality of zeolite crystals each having a plurality of straight through uniform channels extending between the proximal face and the distal face and having a channel axis parallel to and a channel width transverse to a longitudinal crystal axis A. Each channel contains a substantially linear arrangement of dye molecules comprising first and second dye molecules having an elongated shape with a longitudinal extension exceeding said channel width and a lateral extension not exceeding said channel width. Each dye molecule consists of a chromophore moiety arranged between a pair of terminal moieties, wherein: the chromophore moieties of the first and second dye molecules are substantially identical, the terminal moieties of the first dye molecules have a lateral extension larger than half of the channel width, the terminal moieties of the second dye molecules have a lateral extension smaller than half of the channel width, the linear arrangement of dye molecules comprises at least one pair of second dye molecules adjacent each other.

The present invention relates to a method of identifying and/or distinguishing materials by means of luminescence, wherein at least one luminescent substance is incorporated into the material and/or applied onto the material and the luminescence behaviour of the substance is analysed after excitation by means of radiation, and the use thereof for identifying and/or sorting and/or recycling and/or authenticating and/or performing a quality check and/or formulation check on materials.