The present invention is generally directed to the field of organic semiconductor material. It provides a donor-acceptor conjugated polymer containing 3,4-ethylenedioxythiophene ring as a side chain and a photodetector device containing the same.

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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The present specification provides a copolymer and an organic solar cell including the same.

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.

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.

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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An object of the invention is to provide an organic semiconductor element in which mobility is high, heat resistance is excellent, and variation of mobility is suppressed, and a manufacturing method thereof, to provide a novel compound that is suitable as an organic semiconductor, and to provide an organic semiconductor film in which mobility is high, heat resistance is excellent, and variation of mobility is suppressed and a composition for forming an organic semiconductor film that can suitably form the organic semiconductor film.

The organic semiconductor element according to the invention has an organic semiconductor layer containing a compound having a constitutional repeating unit represented by Formula 1 or 2 below.

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

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

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The invention relates to a process for producing a conjugated polymer blend. The process for producing the conjugated polymer blend comprises the mixture of: a polymer A (X-Y), where X is

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and Y is

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and h is a substituent, a polymer B (X-Y′) where X is

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Y′ is

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and j is a substituent, and an acceptor. In this process h and j are different substituents and independently selected from each other.

In one embodiment, a polymer includes a repeating unit represented by a formula (1) shown below. A weight-average molecular weight of the polymer is in a range of 3000 or more to 1000000 or less. ##STR00001##
R1 indicates a monovalent group selected from hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aromatic group, and a substituted or unsubstituted hetero-aromatic group. R2, R3, and R4 indicate independently a monovalent group selected from hydrogen, halogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic group, and a substituted or unsubstituted hetero-aromatic group. X, Y, and Z indicate independently an atom selected from O, S, and Se.