An object is to provide an organic semiconductor element having excellent carrier mobility and heat resistance of a semiconductor active layer, an organic semiconductor composition for obtaining this element, an organic semiconductor film, and a method of manufacturing an organic semiconductor element in which the composition is used, and another object is to provide a compound and an oligomer or a polymer that are suitably used in the organic semiconductor element, the organic semiconductor composition, the organic semiconductor film, and the method of manufacturing an organic semiconductor element.

The organic semiconductor element of the present invention includes a compound represented by Formula 1 below in a semiconductor active layer. In Formula 1, X represents a chalcogen atom, p and q each independently represent an integer of 0 to 2, and R.sup.1 and R.sup.2 each independently represent a halogen atom or a group represented by Formula W below.

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A carbon nanotube composite has an organic substance attached to at least a part of a surface thereof. At least one functional group selected from a hydroxyl group, a carboxy group, an amino group, a mercapto group, a sulfo group, a phosphonic acid group, an organic or inorganic salt thereof, a formyl group, a maleimide group and a succinimide group is contained in at least a part of the carbon nanotube composite.

A problem to be solved of the invention is to provide a package of a liquid composition for an organic electroluminescent device including a phosphorescent material and a solvent with extended storage lifetime, which may be produced with high working efficiency. A solving means of the problem is a package of a liquid composition for an organic electroluminescent device having a liquid composition for an organic electroluminescent device including a phosphorescent material and a solvent, and a container that contains the liquid composition for an organic electroluminescent device, wherein the package of a liquid composition for an organic electroluminescent device has a transmittance of light, that is a wavelength component of from 500 nm to 780 nm, from outside of the package to inside of the container of 15% or less.

The present invention provides: a p-type organic semiconductor material which is able to be produced easily, while having high planarity in a polymer skeleton; and a photoelectric conversion layer, a photoelectric conversion element and an organic thin film solar cell, each of which uses this p-type organic semiconductor material and has high photoelectric conversion efficiency. The present invention specifically provides: a picene derivative which has at least one constituent unit represented by general formula (1); and a photoelectric conversion element which contains (A) the picene derivative serving as a p-type organic semiconductor material and (B) an n-type organic semiconductor material. The details of general formula (1) are as set forth in the description.

There is a conjugated polymer having a derivative of indacen-4-one having general formula (I): ##STR00001## wherein: R.sub.1 and R.sub.2, same or different, are selected from C.sub.1-C.sub.30 alkyl groups, linear or branched; optionally substituted cycloalkyl groups; optionally substituted aryl groups; optionally substituted heteroaryl groups; C.sub.1-C.sub.30 alkoxyl groups, linear or branched; R.sub.4—O—[CH.sub.2—CH.sub.2—O].sub.m— polyoxyethylene groups, wherein R.sub.4 is selected from C.sub.1-C.sub.30 alkyl groups, linear or branched, and m is an integer ranging from 1 to 4; —R.sub.5—OR.sub.6 groups, wherein R.sub.5 is selected from C.sub.1-C.sub.30 alkylene groups, linear or branched, and R.sub.6 represents a hydrogen atom or is selected from C.sub.1-C.sub.30 alkyl groups, linear or branched, or is selected from R.sub.4—[—OCH.sub.2—CH.sub.2—].sub.p— polyoxyethylene groups, wherein R.sub.4 has the same meanings as reported above and p is an integer ranging from 1 to 4; —COR.sub.7 groups, wherein R.sub.7 is selected from C.sub.1-C.sub.30 alkyl groups, linear or branched; —COOR.sub.8 groups, wherein R.sub.8 is selected from C.sub.1-C.sub.30 alkyl groups, linear or branched; or they represent a —CHO group or a cyano (—CN) group; R.sub.3 is selected from C.sub.1-C.sub.30 alkyl groups, linear or branched; optionally substituted cycloalkyl groups; optionally substituted aryl groups; and C.sub.1-C.sub.30 alkoxyl groups, linear or branched; n is an integer ranging from 10 to 500. There is also a photovoltaic device (or solar device) having a support having the conjugated polymer having a derivative of indacen-4-one.

The present invention relates to new semiconducting compounds having at least one optionally substituted azino[1,2,3]thiadiazole moiety. The compounds disclosed herein can exhibit high carrier mobility and/or efficient light absorption/emission characteristics, and can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.

A polycyclic aromatic compound represented by Formula (1) is provided by the invention:

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wherein A.sup.11 ring, A.sup.21 ring, A.sup.31 ring, B.sup.11 ring, B.sup.21 ring, C.sup.11 ring, and C.sup.31 ring are an aryl or heteroaryl ring which may be substituted, Y.sup.11, Y.sup.21, Y.sup.31 are B or the like, X.sup.11, X.sup.12, X.sup.21, X.sup.22, X.sup.31, X.sup.32 are >O or >N—R, R in the above >N—R is an and which may be substituted or the like, R in the above >N—R or the like may be bonded to A.sup.11 ring, A.sup.21 ring, A.sup.31 ring, B.sup.11 ring, B.sup.21 ring, C.sup.11 ring, and/or C.sup.31 ring by a linking group or a single bond; and at least one hydrogen in the compound represented by Formula (1) may be replaced with deuterium, cyano, or a halogen.

Provided is a process for preparing a composition comprising semiconducting single-walled carbon nanotubes, a semiconducting polymer and solvent A (composition A), which process comprises the step of separating composition A from a composition comprising semiconducting and metallic single-walled carbon nanotubes, the semiconducting polymer and solvent B (composition B), wherein the semiconducting polymer has a band gap in the range of 0.5 to 1.8 eV and solvent A and B comprise an aromatic or a heteroaromatic solvent, composition A itself, a process for forming an electronic device, which process comprises the step of forming a layer by applying composition A to a precursor of the electronic device, as well as the electronic device obtainable by this process.

The invention provides compositions comprising crosslinkable BCB-functionalized materials for use in OLEDs applications. The inventive compositions can be used to form hole-transporting materials for use in electroluminescent devices. In particular, the invention provides a composition comprising at least one compound selected from Structure A, as described herein.

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Objects of the present invention is to provide an organic semiconductor element having high mobility and excellent temporal stability under high humidity, and a manufacturing method thereof, to provide a novel compound which is suitable as an organic semiconductor, and to provide an organic semiconductor film having high mobility and excellent temporal stability under high humidity and a manufacturing method thereof, and a composition for forming an organic semiconductor film that can suitably form the organic semiconductor film.

The organic semiconductor element according to the present invention has an organic semiconductor layer containing a compound having a constitutional repeating unit represented by Formula 1.

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