An aromatic amine derivative is represented by the following formula (1). In the formula (1), R.sub.1 to R.sub.10 each independently represent a hydrogen atom and a substituent. In the formula (1); R.sub.1 is represented by the following formula (2); any one of R.sub.2 to R.sub.5 and R.sub.7 to R.sub.10 is represented by the following formula (2); and L.sub.1 to L.sub.3 each independently represent a single bond, a divalent residue of an aryl group, or the like. In the formula (2); Ar.sub.1 is a monovalent substituent having a partial structure represented by the following formula (3); X represents an oxygen atom or a sulfur atom; and A and B represent a six-membered ring. In the formula (2), Ar.sub.2 is an aryl group, a monovalent substituent having a partial structure represented by the formula (3), and the like. ##STR00001##

A fused aromatic ring derivative shown by the following formula (1): ##STR00001##
wherein R.sub.a and R.sub.b are independently a hydrogen atom or a substituent, p is an integer of 1 to 8 and q is an integer of 1 to 11, when p is 2 or more, plural R.sub.as may be independently the same or different and adjacent R.sub.as may form a ring, when q is 2 or more, plural R.sub.bs may be independently the same or different, L.sub.1 is a single bond, or a substituted or unsubstituted divalent linking group, and Ar.sub.1 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, provided that the substituent of L.sub.1, the substituent of Ar.sub.1, R.sub.a and R.sub.b contain no substituted or unsubstituted amino group.

An organic electroluminescence element that uses a compound expressed by the following general formula has low inter-molecular interaction and high orientation during vapor deposition, and by using compounds that are resistant to aggregation, luminous efficiency is high, and there is little change in chromaticity accompanying drive deterioration (either V.sup.1 or W.sup.1 and either V.sup.2 or W.sup.2 form rings, the rings formed by V.sup.1 and V.sup.2 are six-membered rings, and the rings formed by W.sup.1 and W.sup.2 are five-membered rings; A.sup.2 to A.sup.4 and A.sup.6 to A.sup.8 represent CR.sup.Z or N, and R.sup.Z represents a hydrogen atom or a substituent; and R.sup.2, R.sup.3, R.sup.7, and R.sup.8 represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a hydrogen atom [sic], or a deuterium atom.). ##STR00001##

Provided is a long-lifetime organic light-emitting element having a good device lifetime characteristic. The organic light-emitting device includes: a pair of electrodes; and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a specific structure and a different kind of metal complex.

A composition includes a functionalized fluorescent dye. The functionalized fluorescent dye includes an isothiocyanate-containing compound functionalized with a functional group. The functional group includes a primary amine. The functionalized fluorescent dye can be mixed with a fluid to form a tracer fluid for tracing fluid flow in a subterranean formation.

A pyrene-based compound and an organic light-emitting diode including the same, the pyrene-based compound being represented by Formula 1, below: ##STR00001##

The invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices.

The invention relates to an apparatus for producing a droplet assembly, which apparatus comprises a droplet generator. A process for producing a droplet assembly, using an apparatus comprising a droplet generator is also described. The invention also relates to droplet assemblies comprising a plurality of droplets. Various uses of the droplet assemblies are also described.

A coloring composition for a color filter, a method of manufacturing the same, and a color filter for an image sensor manufactured using the coloring composition for a color filter are provided. The coloring composition includes a coloring composite including: a nanoparticle including a metal oxide or a non-metal oxide; and a colorant adsorbed on a surface of the nanoparticle, wherein the colorant includes one selected from a perylene compound including a carboxyl group (COOH) at the para position of a benzene ring, a diketopyrrolopyrrole compound including a carboxyl group (COOH) at the para position of a benzene ring, and an azo compound including a carboxyl group (COOH) at the para position of a benzene ring.

The present invention is generally directed to the synthesis and use of fluorophores. It is more specifically directed to the synthesis and use of deuterated fluorophores. In one case, the present invention provides a compound of the structure shown in FIG. 44.