Abstract: The present invention provides an organic photoelectric conversion material such that an increase in the solution viscosity can be suppressed even after long-term storage. This organic photoelectric conversion material comprises Pd, wherein the average number of Pd clusters in a scanning transmission electron microscopic image of a thin film made of the organic photoelectric conversion material is 1500 counts/?m3 or less. It is preferable that the Pd clusters each have a particle diameter of from 1 nm to 20 nm. It is preferable that the organic photoelectric conversion material is a polymer for organic photoelectric conversion material; and it is more preferable that the polymer for organic photoelectric conversion material is a D-A type n-conjugated polymer. It is preferable that the polymer for organic photoelectric conversion material has a thiophene ring.

Abstract: Provided is a method for producing a ?-conjugated polymer capable of suppressing an increase in dark current of an organic photoelectric conversion element even if the method includes a purification step including heating. A method for producing a ?-conjugated polymer includes: step (I) of heating and dissolving a crude ?-conjugated polymer in a solvent to obtain a polymer solution; and step (II) of precipitating a ?-conjugated polymer from the polymer solution. In step (I), the content of peroxide in the solvent is 0.1% or less in terms of a relative area ratio measured by high-performance liquid chromatography, and the electron spin concentration of the ?-conjugated polymer is 30×1016 Spin/g or less and/or 2.5 times or less the electron spin concentration of the crude ?-conjugated polymer.

Abstract: A polymer compound comprising a structural unit represented by the formula (1): wherein a ring A and a ring B represent a heterocyclic ring. A ring C represents a condensed aromatic heterocyclic ring not having a line-symmetric axis and a rotational axis. Z1 and Z2 represent a group represented by the formula (Z-1), a group represented by the formula (Z-2), a group represented by the formula (Z-3), a group represented by the formula (Z-4), a group represented by the formula (Z-5), a group represented by the formula (Z-6) or a group represented by the formula (Z-7). R represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an alkylthio group, a cycloalkylthio group, an aryl group or a monovalent heterocyclic group.].

Abstract: A composition comprising a polymer compound containing a structural unit represented by formula (1) and at least one compound selected from a compound containing Pd, a compound containing P and a compound containing Pd and P, wherein the content rate of the polymer compound is 95% by mass or more, the content rate of Pd is 50 ppm by mass or less and the content rate of P is 60 ppm by mass or less: wherein ring A and ring B each independently represent a hetero ring having a number of carbon atoms of 2 to 30 optionally having a substituent; ring C represents an aromatic hydrocarbon ring having a number of carbon atoms of 6 to 30 optionally having a substituent or a hetero ring having a number of carbon atoms of 2 to 30 optionally having a substituent; and Z1 represents a specified group.

Abstract: A film comprising a polymer compound and a low molecular weight compound having carrier transportability, wherein the content of the low molecular weight compound is 5 to 40 parts by mass with respect to 100 parts by mass of the sum of the polymer compound and the low molecular weight compound, the diffraction intensity A specified by the following measuring method A is 3 to 50, and the intensity ratio (A/B) of the diffraction intensity A specified by the following measuring method A to the diffraction intensity B specified by the following measuring method B is 30 or less: (Measuring method A) the diffraction intensity A is the maximum diffraction intensity in a range of scattering vector of 1 nm?1 to 5 nm?1 in a profile obtained by an Out-of plane measuring method using a film X-ray diffraction method; (Measuring method B) the diffraction intensity B is the maximum diffraction intensity in a range of scattering vector of 10 nm?1 to 21 nm?1 in a profile obtained by an In-plane measuring method using a film X

Abstract: A polymer compound comprising a structural unit represented by the formula (1): wherein Ring A and Ring B represent each independently a heterocyclic ring, and the heterocyclic ring may have a substituent, Ring C represents an aromatic hydrocarbon ring obtained by condensing two or more benzene rings, the aromatic hydrocarbon ring has at least one of an alkyl group, an alkoxy group, an alkylthio group, an amino group or a hydroxyl group, and these groups may have a substituent, Z1 and Z2 represent each independently a group represented by the formula (Z-1), a group represented by the formula (Z-2), a group represented by the formula (Z-3), a group represented by the formula (Z-4) or a group represented by the formula (Z-5), wherein R represents an alkyl group, an alkoxy group, an alkylthio group, an aryl group or a mono-valent heterocyclic group, and these groups may have a substituent, and when there exist a plurality of R, these may be the same or different.

Abstract: A polymer compound comprising a structural unit represented by the formula (1): wherein R1, R2, R3 and R4 each independently represent an alkyl group, an aryl group or a monovalent heterocyclic group, and these groups optionally have a substituent, two rings A may be the same or different, and represent a thiophene ring, a benzothiophene ring or a thienothiophene ring, n represents 1 or 2, and X represents a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an amino group, an aryl group, a monovalent heterocyclic group, an alkenyl group or an alkynyl group, and these groups optionally have a substituent, and when n is 2, two groups X may be the same or different.

Abstract: A polymer compound comprising a structural unit represented by the formula (1): wherein a ring A and a ring B represent a heterocyclic ring. A ring C represents a condensed aromatic heterocyclic ring not having a line-symmetric axis and a rotational axis. Z1 and Z2 represent a group represented by the formula (Z-1), a group represented by the formula (Z-2), a group represented by the formula (Z-3), a group represented by the formula (Z-4), a group represented by the formula (Z-5), a group represented by the formula (Z-6) or a group represented by the formula (Z-7). R represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an alkylthio group, a cycloalkylthio group, an aryl group or a monovalent heterocyclic group.].

Abstract: A film comprising a polymer compound and a low molecular weight compound having carrier transportability, wherein the content of the low molecular weight compound is 5 to 40 parts by mass with respect to 100 parts by mass of the sum of the polymer compound and the low molecular weight compound, the diffraction intensity A specified by the following measuring method A is 3 to 50, and the intensity ratio (A/B) of the diffraction intensity A specified by the following measuring method A to the diffraction intensity B specified by the following measuring method B is 30 or less: (Measuring method A) the diffraction intensity A is the maximum diffraction intensity in a range of scattering vector of 1 nm?1 to 5 nm?1 in a profile obtained by an Out-of plane measuring method using a film X-ray diffraction method; (Measuring method B) the diffraction intensity B is the maximum diffraction intensity in a range of scattering vector of 10 nm?1 to 21 nm?1 in a profile obtained by an In-plane measuring method using a film X

Abstract: A composition comprising a polymer compound containing a structural unit represented by the formula (1) and a compound represented by the formula (2): [wherein Ring A and Ring B each independently represent a heterocyclic ring, and this heterocyclic ring may have a substituent. Ring C represents an aromatic hydrocarbon ring or a heterocyclic ring, and these rings may have a substituent. Z1 represents a group represented by the formula (Z-1), a group represented by the formula (Z-2), a group represented by the formula (Z-3), a group represented by the formula (Z-4) or a group represented by the formula (Z-5). A plurality of Z1 may be mutually the same or different.] [wherein R1 represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an alkylthio group, a cycloalkylthio group, an aryl group or a monovalent heterocyclic ring group, and these groups may have a substituent. When there are a plurality of R1, they may be the same or different.

Abstract: A polymer compound comprising a structural unit represented by the formula (1): [wherein Ring A and Ring B represent each independently a heterocyclic ring, and the heterocyclic ring may have a substituent. Ring C represents an aromatic hydrocarbon ring obtained by condensing two or more benzene rings, the aromatic hydrocarbon ring has at least one of an alkyl group, an alkoxy group, an alkylthio group, an amino group or a hydroxyl group, and these groups may have a substituent. Z1 and Z2 represent each independently a group represented by the formula (Z-1), a group represented by the formula (Z-2), a group represented by the formula (Z-3), a group represented by the formula (Z-4) or a group represented by the formula (Z-5).] [wherein R represents an alkyl group, an alkoxy group, an alkylthio group, an aryl group or a mono-valent heterocyclic group, and these groups may have a substituent. When there exist a plurality of R, these may be the same or different.].

Abstract: A polymer compound comprising a structural unit represented by the formula: wherein E represents —O—, —S— or —Se—; R1 represents a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, a heteroaryl group or a halogen atom; and R2 represents a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group or a halogen atom, or two R2s are linked to form a ring, and a structural unit which is different from the structural unit represented by the formula (1) and is represented by the formula: ?Ar1???(2) wherein Ar1 represents a divalent aromatic group, a group represented by —CR3?CR3— or a group represented by —C?C—, wherein R3 represents a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group or a cyano group.