Abstract: A metal complex which is useful for production of a light emitting device of which long-term degradation is suppressed is provided. The metal complex is represented by the formula (1): wherein, one of Ya and Yb is a single bond, and the other is a group represented by the formula (C-1): and wherein at least one of Ring RA, Ring RB1, Ring RB2, Ring RC1 and Ring RC2 has a group represented by the formula (D-A), the formula (D-B) or the formula (D-C) as a substituent.

Abstract: A compound with which the luminance life of a light emitting device is excellent is represented by formula (1): n represents an integer of 2 or more and 20 or less, R1 and R2 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or a halogen atom. Ar1 represents a mono-cyclic or condensed-cyclic arylene group, a mono-cyclic or condensed-cyclic divalent heterocyclic group or a group represented by —N(RX1)—, and RX1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group. At least two of Ar1 represent prescribed groups.

Abstract: A composition which is useful for providing a light emitting device having excellent light emission efficiency contains a compound represented by formula (C-1) and a phosphorescent compound represented by formula (1): Ring R1C to Ring R4C each represents an aromatic hydrocarbon ring or an aromatic hetero ring, RC represents a carbon, silicon, germanium, tin, or lead atom, and M represents a rhodium, palladium, iridium, or a platinum atom. n1 represents an integer of 1 or more, and n2 represents an integer of 0 or more. n1+n2 is 2 or 3. Ring R1A represents a triazole ring, Ring R2 represents an aromatic hydrocarbon ring or an aromatic hetero ring, E1, E2 and E11A to E13A represent a nitrogen atom or a carbon atom, R11A to R13A represent a hydrogen atom, an alkyl group, an aryl group, and A1-G1-A2 represents an anionic bidentate ligand.

Abstract: Provided is a metal complex which is excellent in quantum yield and full width at half maximum of a light emission spectrum. The metal complex is represented by the following formula (1): wherein M represents an iridium atom or the like, n1 represents 1 to 3, n2 represents 0 to 2, X1 to X8 represent a carbon atom or the like, R1 to R8 represent a hydrogen atom or the like, one of Xa and Xb is a single bond, and the other is a group represented by —CR11R12—CR13R14—, R11 to R14 represent an alkyl group or the like, ring A represents a heteroaromatic ring, and A1-G1-A2 represents an anionic bidentate ligand.

Abstract: Provided is a metal complex which is excellent in quantum yield and full width at half maximum of a light emission spectrum. The metal complex is represented by the following formula (1): wherein M represents an iridium atom or the like, n1 represents 1 to 3, n2 represents 0 to 2, X1 to X8 represent a carbon atom or the like, R1 to R8 represent a hydrogen atom or the like, one of Xa and Xb is a single bond, and the other is a group represented by —CR11R12—CR13R14—, R11 to R14 represent an alkyl group or the like, ring A represents a heteroaromatic ring, and A1-G1-A2 represents an anionic bidentate ligand.

Abstract: The present invention is to provide a composition that can provide an electroluminescent device emitting light with high brightness. The present invention provides following: a composition including a polymer compound comprising one or more structural unit(s) selected from the group consisting of a structural unit represented by Formula (1), a structural unit represented by Formula (3), a structural unit represented by Formula (5), a structural unit represented by Formula (16), a structural unit represented by Formula (18), a structural unit represented by Formula (20), and a structural unit represented by Formula (22) and an ionic compound represented by Formula (23); an organic film and an electric device comprising the composition.

Abstract: The present invention provides a compound that has high solubility in a highly polar solvent and is usefully usable for an application method using a highly polar solvent, the compound that can manufacture an electroluminescent device having high light-emitting efficiency. Specifically, the present invention provides a compound containing a structure represented by Formula (1): wherein: Ar1, Ar2, Ar3, and Ar4 each independently represent a divalent aromatic group optionally having substituent(s); Ar5 represents a monovalent aromatic group optionally having substituent(s); p and q each independently represent an integer of 0 or more; and R1 represents a given monovalent group.

Abstract: Provided is a layered structure having a first electrode, a second electrode, a light emitting layer or a charge separation layer located between the first electrode and the second electrode, and a layer located between the light emitting layer or the charge separation layer and the first electrode and containing a polymer having a repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups. Also provided is a polymer having, as the repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups, one or more repeating units selected from four specific repeating units containing an aromatic group. The layered structure of the present invention provides an electroluminescent device capable of emitting light at a high luminance and a photoelectric conversion device having a high photoelectric conversion efficiency.

Abstract: A laminated structure comprising an electrode, a polymer binding layer arranged on the electrode, and an electrically conductive organic material layer arranged on the polymer binding layer, wherein the polymer binding layer comprises an aromatic polymeric compound which has a structure represented by formula (I) [wherein Ar represents a conjugated divalent group which may have a substituent, provided that when there are multiple Ar's, the Ar's may be the same as or different from each other; and n represents an integer of 1 or greater] and has a number average molecular weight of 1×103 to 1×108 inclusive in terms of polystyrene content, the polymer binding layer is bonded to the electrode via a chemical bond between the aromatic polymeric compound and the surface of the electrode, and an electrically conductive organic material that composes a layer included in the electrically conductive organic material layer and arranged adjacent to the polymer binding layer has a number average molecular weight of 3×102

Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (14) as a charge injection layer and/or a charge transport layer: wherein Ar1 and Ar2 represent certain fused polycyclic aromatic groups; R1, R2, R6 and R7 represent certain organic groups; m1, m2 and m6 represent an integer of 1 or more; m7 represents an integer of 0 or more; and when R1, R2, R6 and R7 are each plurally present, they each may be the same or different.

Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (7) as a charge injection layer and/or a charge transport layer: Wherein R1, R2, R6 and R7 represent certain groups; m1 and m5 represent an integer of 0 or more; when R2 and R7 are plurally present, they may be the same or different; and a hydrogen atom in formula (1) or (7) may be replaced with a substituent other than the certain groups.

Abstract: The present invention provides: a layered structure having a substrate and a hole injection and/or hole transport layer comprising an aromatic compound having, on a side chain, at least one type of group having a cationic center; an electronic device having the layered structure; an aromatic compound having, on a hydrocarbon side chain, at least one type of group having a cationic center; an aromatic compound having a leaving group on a hydrocarbon side chain; and a method for manufacturing the aromatic compound having, on a hydrocarbon side chain, at least one type of group having a cationic center, the method comprising reacting the aromatic compound having a leaving group on a hydrocarbon side chain with a specific nitrogen compound, phosphorus compound, sulfur compound, or a combination of two or more of these compounds, thereby converting the aromatic compound into an onium salt thereof.

Abstract: The present invention provides a compound that has high solubility in a highly polar solvent and is usefully usable for an application method using a highly polar solvent, the compound that can manufacture an electroluminescent device having high light-emitting efficiency. Specifically, the present invention provides a compound containing a structure represented by Formula (1): wherein: Ar1, Ar2, Ar3, and Ar4 each independently represent a divalent aromatic group optionally having substituent(s); Ar5 represents a monovalent aromatic group optionally having substituent(s); p and q each independently represent an integer of 0 or more; and R1 represents a given monovalent group.

Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (14) as a charge injection layer and/or a charge transport layer: wherein Ar1 and Ar2 represent certain fused polycyclic aromatic groups; R1, R2, R6 and R7 represent certain organic groups; m1, m2 and m6 represent an integer of 1 or more; m7 represents an integer of 0 or more; and when R1, R2, R6 and R7 are each plurally present, they each may be the same or different.

Abstract: An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (7) as a charge injection layer and/or a charge transport layer: Wherein R1, R2, R6 and R7 represent certain groups; m1 and m5 represent an integer of 0 or more; when R2 and R7 are plurally present, they may be the same or different; and a hydrogen atom in formula (1) or (7) may be replaced with a substituent other than the certain groups.

Abstract: The present invention is to provide a composition that can provide an electroluminescent device emitting light with high brightness. The present invention provides following: a composition including a polymer compound comprising one or more structural unit(s) selected from the group consisting of a structural unit represented by Formula (1), a structural unit represented by Formula (3), a structural unit represented by Formula (5), a structural unit represented by Formula (16), a structural unit represented by Formula (18), a structural unit represented by Formula (20), and a structural unit represented by Formula (22) and an ionic compound represented by Formula (23); an organic film and an electric device comprising the composition.

Abstract: The present invention provides: a layered structure having a substrate and a hole injection and/or hole transport layer comprising an aromatic compound having, on a side chain, at least one type of group having a cationic center; an electronic device having the layered structure; an aromatic compound having, on a hydrocarbon side chain, at least one type of group having a cationic center; an aromatic compound having a leaving group on a hydrocarbon side chain; and a method for manufacturing the aromatic compound having, on a hydrocarbon side chain, at least one type of group having a cationic center, the method comprising reacting the aromatic compound having a leaving group on a hydrocarbon side chain with a specific nitrogen compound, phosphorus compound, sulfur compound, or a combination of two or more of these compounds, thereby converting the aromatic compound into an onium salt thereof.

Abstract: Provided is a layered structure having a first electrode, a second electrode, a light emitting layer or a charge separation layer located between the first electrode and the second electrode, and a layer located between the light emitting layer or the charge separation layer and the first electrode and containing a polymer having a repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups. Also provided is a polymer having, as the repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups, one or more repeating units selected from four specific repeating units containing an aromatic group. The layered structure of the present invention provides an electroluminescent device capable of emitting light at a high luminance and a photoelectric conversion device having a high photoelectric conversion efficiency.

Abstract: A laminated structure comprising an electrode, a polymer binding layer arranged on the electrode, and an electrically conductive organic material layer arranged on the polymer binding layer, wherein the polymer binding layer comprises an aromatic polymeric compound which has a structure represented by formula (I) [wherein Ar represents a conjugated divalent group which may have a substituent, provided that when there are multiple Ar's, the Ar's may be the same as or different from each other; and n represents an integer of 1 or greater] and has a number average molecular weight of 1×103 to 1×108 inclusive in terms of polystyrene content, the polymer binding layer is bonded to the electrode via a chemical bond between the aromatic polymeric compound and the surface of the electrode, and an electrically conductive organic material that composes a layer included in the electrically conductive organic material layer and arranged adjacent to the polymer binding layer has a number average molecular weight of 3×102