Abstract: A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.

Abstract: A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.

Abstract: The invention addresses a problem of obtaining a conjugated polymer having a higher molecular weight through coupling reaction of monomers using a transition metal catalyst. The invention relates to a method for producing a conjugated polymer, which comprises polymerizing one or more monomers through a coupling reaction, wherein the coupling reaction of the monomer is carried out by using one or more kinds of homogeneous transition metal complex catalysts and one or more kinds of heterogeneous transition metal complex catalysts in combination.

Abstract: A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.

Abstract: The invention addresses a problem of purifying a monomer to be a precursor according to a simpler and milder method so as to obtain a polymer having a higher molecular weight. The invention relates to a method for producing a condensed polycyclic aromatic compound having n active groups (wherein n is an integer of 1 or more and 4 or less), which comprises bringing a composition containing the condensed polycyclic aromatic compound and a solvent into contact with zeolite.

Abstract: The invention addresses a problem of obtaining a conjugated polymer having a higher molecular weight through coupling reaction of monomers using a transition metal catalyst. The invention relates to a method for producing a conjugated polymer, which comprises polymerizing one or more monomers through a coupling reaction, wherein the coupling reaction of the monomer is carried out by using one or more kinds of homogeneous transition metal complex catalysts and one or more kinds of heterogeneous transition metal complex catalysts in combination.

Abstract: An object of the present invention is to provide a photoelectric conversion element, a solar cell and a solar cell module with improved photoelectric conversion efficiency. The object is achieved with a photoelectric conversion element comprising a pair of electrodes, an active layer disposed between the electrodes and an electron extraction layer disposed between at least one of the electrodes and the active layer, wherein the active layer contains a copolymer having a repeating unit represented by General Formula (1) below, and the electron extraction layer contains a compound represented by General Formula (E1) below.

Abstract: Provided are a novel hydrazide chelate complex compound which is excellent in terms of both solubility in a coating solvent and light fastness, which can be used for blue laser recording, and which is useful as a dye for forming a recording layer of an optical recording medium, the hydrazide chelate complex compound being represented by general formula (1) below; and a dye for forming a recording layer of an optical recording medium, the dye containing the compound. In general formula (1), ring A represents an aromatic ring; R1 and R6 each represent an aromatic ring group or a monovalent nonaromatic ring substituent having 20 or less carbon atoms; R2 to R5 each represent a hydrogen atom, an aromatic ring group, or a monovalent nonaromatic ring substituent having 20 or less carbon atoms; n represents 0 or 1; a represents an integer of 1 to 3; M represents a transition metal atom; and X represents an atom of Groups 14 to 16 of the periodic table.