Abstract: An organic EL device comprising a pair of electrodes and a light emitting layer disposed between the electrodes, wherein the above-described light emitting layer is a light emitting layer comprising at least one compound selected from the group consisting of the following compounds (I) to (IV) and derivatives thereof, and a first light emitting polymer, or a light emitting layer comprising a second light emitting polymer having as a repeating unit a divalent residue of at least one compound selected from the group consisting of the above-described compounds (I) to (IV) and derivatives thereof; (I) perylene tetracarboxylic diimide or naphthalene tetracarboxylic diimide (II) perylene tetracarboxylic dianhydride or naphthalene tetracarboxylic dianhydride (III) perylene tetracarboxylic bisimidazole or naphthalene tetracarboxylic bisimidazole (IV) perylene tetracarboxylic bispyrimidine or naphthalene tetracarboxylic bispyrimidine.

Abstract: An organic photoelectric converter having excellent photoelectric conversion efficiency can be produced by using a composition containing a polymer compound A having a repeating unit represented by formula (1) and a polymer compound B having a repeating unit represented by formula (2): wherein R1 and R2 respectively represent a hydrogen atom, a fluorine atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group or an arylalkylthio group, wherein R3 and R4 respectively represent a hydrogen atom, a fluorine atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group or an arylalkylthio group, and p represents an integer of 2 to 10.

Abstract: A polymer material as light emitter or charge transport material, and a polymer composition for organic electroluminescence containing a crosslinking agent characterized in that the crosslinking agent has no aromatic ring.

Abstract: A fullerene derivative having two or more structures represented by the formula (1) can increase light absorption in a long wavelength range when used for an organic photovoltaic cell. In the formula (1), C1 and C2 represent carbon atoms constituting the fullerene skeleton. m represents an integer from 1 to 6, and n represents an integer from 1 to 4. p represents an integer of 0 or more, and R represents a monovalent organic group. Q represents a single bond, an arylene group, or a divalent heterocyclic group. When m is plurally present, these m may be the same or different from each other.

Abstract: A fullerene derivative having a partial structure represented by formula (1): wherein R represents a monovalent group, and r represents an integer of 0 to 4, in particular, a fullerene derivative, which has one to four structures represented by formula (1), can be applied to an organic photoelectric conversion element having a high open-circuit voltage and is therefore suitable for an organic thin-film solar cell or an organic photosensor, and thus it is extremely useful.

Abstract: An organic electroluminescent element comprising: a pair of electrodes composed of an anode and a cathode; and a light-emitting layer provided between the electrodes, wherein the light-emitting layer comprises a light emitting polymer having one or more kinds of diyl group, as a repeating unit, selected from the group consisting of an unsubstituted or substituted fluorenediyl group and an unsubstituted or substituted benzofluorenediyl group, and a fullerene and/or a fullerene derivative.

Abstract: An organic photoelectronic conversion element having a sufficiently high open-circuit voltage can be produced by using a fullerene derivative comprising a structure represented by formula (1) and one or more structures selected from the group consisting of a structure represented by formula (2-1) and a structure represented by formula (2-2).

Abstract: An organic photoelectric conversion element having a high absorbance at 600 nm can be provide by a method for manufacturing an organic photoelectric conversion element having a pair of electrodes at least one of which is transparent or translucent, and an organic layer between the electrodes, the method comprising a step of applying a solution that contains a conjugated polymer compound having a thiophenediyl group as a repeating unit and a sulfur-containing heterocyclic compound on one of the electrodes to form an applied film, and a step of drying the applied film at a temperature of 70° C. or less to form the organic layer.

Abstract: An organic electroluminescent element comprising a pair of electrodes composed of an anode and a cathode, a light-emitting layer provided between the electrodes, and a functional layer provided between the light-emitting layer and the anode, wherein the functional layer comprises an n-type semiconductor and a macromolecular compound comprising a repeating unit having an amine residue.

Abstract: An organic photoelectric conversion element comprising a pair of electrodes, at least one of the electrodes being transparent or translucent, and an organic layer disposed between the pair of electrodes, wherein the organic layer comprises a conjugated polymer compound, and one or more compounds selected from the group consisting of a low-molecular-weight aromatic compound having a group derived by removing two hydrogen atoms from the structure represented by the following formula (1) and a hydroxyl group, estrogen and a nonconjugated polymer compound having a hydroxyl group: wherein R1 and R2 are the same as or different from each other, and each represent a hydrogen atom, an alkyl group or an aryl group, and a carbon atom in R1 and a carbon atom in R2 may be bonded to each other to form a ring; R3 and R4 are the same as or different from each other, and each represent an alkyl group or an aryl group; m and n are the same as or different from each other, and each represent an integer of 0 to 4.

Abstract: The present invention provides a fullerene derivative represented by the following formula (1). [In formula (1), a ring A represents a fullerene skeleton having 60 or more carbon atoms; Ar1, Ar2 and Ar3 are the same as or different from each other, and each represent an arylene group; E1, E2, E3 and E4 are the same as or different from each other, and each represent an aryl group; a and b each independently represent 0 or 1, and 0?a+b?1; m represents an integer of 1 to 6, n represents an integer of 1 to 4, p represents an integer of 0 to 5 and r represents an integer of 0 to 4.

Abstract: The present invention provides a fullerene derivative represented by the following formula (1).

Abstract: Disclosed is an organic photoelectric conversion element that comprises a cathode; an anode, which is formed on a substrate by an application method; and an active layer, which is disposed between the anode and the cathode; wherein the anode contains polyaniline, a polyaniline derivative or a mixture of a polyaniline and a polyaniline derivative.

Abstract: Disclosed is a composition produced by reacting a fullerene derivative with a reducing agent. The composition is preferably produced by adding a reducing agent to a composition comprising a fullerene derivative and a solvent to cause the reaction of the fullerene derivative and the reducing agent. The reducing agent is preferably a trivalent phosphorus compound.

Abstract: A polymer compound comprising a repeating unit represented by the formula (1) and a repeating unit represented by the formula (2). In the formula (1), Ar1 and Ar2 each independently represent an arylene group or a group represented by the following formula (3); R1, R2, R3, and R4 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, or an aryl group; and a hydrogen atom contained in these groups may be substituted by a fluorine atom. In the formula (2), R5, R6, R7, R8, R9, and R10 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, or an aryl group; and a hydrogen atom contained in these groups may be substituted by a fluorine atom.

Abstract: Disclosed is a photoelectric conversion element comprising an anode, a cathode, and an active layer between the anode and the cathode, wherein the active layer includes an n-type semiconductor and a p-type semiconductor, and an area of a p-n junction between the n-type semiconductor and the p-type semiconductor is 100 ?m2 or more per 1 ?m3 of the active layer.

Abstract: An organic electroluminescent device comprising a cathode, an anode formed by an application method, and a light emitting layer disposed between the above-described anode and the above-described cathode.

Abstract: An organic photoelectric conversion element having a pair of electrodes and a functional layer arranged between the electrodes, wherein the functional layer contains an electron-accepting compound and a polymer having a repeating unit which is composed of a structure represented by formula (1) and a structure represented by formula (2): (wherein R1 to R8 may be the same or different, and each represents a hydrogen atom, an alkyl group, an alkoxy group, or an optionally substituted aryl group; and a hydrogen atom contained in the groups may be substituted by a fluorine atom.

Abstract: An organic photoelectric conversion element including and anode, a cathode, an active layer disposed between the anode and the cathode, and a functional layer disposed between the active layer and the anode so as to contact the anode, wherein the functional layer is formed by a coating method using a solution having a pH of 5 to 9, and the anode is formed by a coating method.

Abstract: An organic photoelectric conversion element comprising a plurality of active layers and a junction positioned between the active layers which are laminated between a pair of electrodes, wherein the junction is formed from a plurality of layers including a positive hole transport layer, and the positive hole transport layer is formed first by a coating method when the junction is formed.