Abstract: There are provided a photodetection element including a first electrode layer 11, a second electrode layer 12, a photoelectric conversion layer 13 provided between the first electrode layer 11 and the second electrode layer 12, an electron transport layer 21 provided between the first electrode layer 11 and the photoelectric conversion layer 13, and a hole transport layer 22 provided between the photoelectric conversion layer 13 and the second electrode layer 12, in which the photoelectric conversion layer 13 contains quantum dots of a compound semiconductor containing an Ag element and a Bi element, and the hole transport layer 22 contains an organic semiconductor A including a predetermined structure, and are provided an image sensor.

Abstract: There is provided a photodetector element including a first electrode layer; a second electrode layer; a photoelectric conversion layer provided between the first electrode layer and the second electrode layer; an electron transport layer provided between the first electrode layer and the photoelectric conversion layer; and a hole transport layer provided between the photoelectric conversion layer and the second electrode layer, in which the photoelectric conversion layer contains an aggregate of semiconductor quantum dots that contain a metal atom and contains a ligand coordinated to the semiconductor quantum dot, the hole transport layer contains an organic semiconductor, and the second electrode layer is formed of a metal material containing at least one metal atom selected from Au, Pt, Ir, Pd, Cu, Pb, Sn, Zn, Ti, W, Mo, Ta, Ge, Ni, Cr, or In. There is also provided an image sensor including the photodetector element.

Abstract: Provided are a method for producing a peptide compound including a step of using an aromatic heterocyclic compound represented by Formula (1) represented by Formula (1); a protective group-forming reagent including the compound; and the compound. In Formula (1), a ring A represents an aromatic heterocyclic ring, YA's each independently represent —OH, —NHR, —SH, or —X0, where X0 represents Cl, Br, or I, RA and RC each independently represent an aliphatic hydrocarbon group or an organic group having an aliphatic hydrocarbon group, RBs' each independently represent a monovalent aliphatic hydrocarbon group, a (1+c)-valent aromatic group, or a (1+c)-valent heteroaromatic group, where, in a case where both a and c is 0, RB is a monovalent aliphatic hydrocarbon group, and the number of carbon atoms in at least one aliphatic hydrocarbon group of RA, RB, or RC is 12 or more.

Abstract: Provided are a method for producing a peptide compound including a step of using a condensed polycyclic aromatic hydrocarbon compound represented by Formula (1); a protective group-forming reagent including the compound; and the compound. In Formula (1), a ring A represents a condensed polycyclic aromatic hydrocarbon ring, YA's each independently represent —CH2OH, —CH2NHR, —CH2SH, or —CH2X0, where R represents a hydrogen atom, an alkyl group, or an aralkyl group, and X0 represents Cl, Br, or I, k represents an integer of 1 to 5, n represents 1 or 2, and RA's each independently represent an aliphatic hydrocarbon group or an organic group having an aliphatic hydrocarbon group.

Abstract: A photoelectric conversion element, having a photoconductor layer containing semiconductor fine particles carrying a metal complex dye of Formula (I); a metal complex dye, a dye solution, a dye-adsorbed electrode, a dye-sensitized solar cell, and a method for producing the solar cell: M(LA)(LD)(LX)mX·(CI)mY??Formula (I) M represents a metal ion, LA represents a ligand of Formula (AL), LD represents a bidentate or tridentate ligand, at least one of coordinating atoms being an anion; LX represents a monodentate ligand; CI represents a counter ion; mX is 0 or 1; mY is 0 to 3; Rings A to C represent a heterocycle; Z1 and Z2 represent a carbon or nitrogen atom; Anc1 to Anc3 represent an acidic group; X1 to X3 represent a single bond or linking group; R1 to R3 represent a substituent; l1, l3, l2, m1, m3, m2, n1, n2, and n3 each are an integer.

Abstract: Provided are a photoelectric conversion element including a first electrode having a photosensitive layer including a light absorber on a conductive support and a second electrode facing the first electrode, in which the light absorber includes a compound having a perovskite-type crystal structure including organic cations, cations of a metallic atom other than elements belonging to Group I of the periodic table, and anions, and at least some of the organic cations constituting the compound are organic cations having a silyl group and a solar cell using the photoelectric conversion element. Also provided is a composition containing a compound represented by Formula (1a) and a halogenated metal: R13Si-L-NR23Hal??Formula (1a) in the formula, R1, R2, and L are specific groups; and Hal represents a halogen atom.

Abstract: Provided are a photoelectric conversion element including a first electrode having a photosensitive layer including a light absorber on a conductive support and a second electrode facing the first electrode, in which the light absorber includes a compound having a perovskite-type crystal structure including organic cations, cations of a metallic atom other than elements belonging to Group I of the periodic table, and anions, and at least some of the organic cations constituting the compound are organic cations having a silyl group and a solar cell using the photoelectric conversion element. Also provided is a composition containing a compound represented by Formula (1a) and a halogenated metal. R13Si-L-NR23Hal??Formula (1a) In the formula, R1, R2, and L are specific groups. Hal represents a halogen atom.

Abstract: Provided are a photoelectric conversion element including a first electrode having a photosensitive layer including a light absorber on a conductive support and a second electrode, in which the light absorber includes a compound having a perovskite-type crystal structure having an organic cation represented by Formula (IA) below, a cation of a metallic atom, and an anion that is an anionic atom or atomic group, a solar cell, and a method for manufacturing a photoelectric conversion element, including bringing a layer in which a photosensitive layer is to be formed into contact with liquid including the above-described compound. [RA—NH2(H+)]1-n{[(RB)n2-L-NH2](H+)}n??Formula (IA) in the formula, RA represents a specific group such as an alkyl group. RB represents NR1R2 or (NR1R2R3)+, and R1 to R3 represent a hydrogen atom or a substituent. L represents a linking group. n2 represents an integer of 1 or more. Here, (RB)n2-L is a group different from RA. n represents a numerical value satisfying 0<n<1.00.

Abstract: Provided is a photoelectric conversion element, including a first electrode that has a photosensitive layer containing a light absorbing agent on a conductive support, in which the light absorbing agent contains a compound having a perovskite-type crystal structure that has an organic cation represented by Formulas (1) and (2), a cation of a metal atom, and an anion; and a solar cell which is formed of this photoelectric conversion element. C(R1)(R2)(R3)—N(R1a)3+??Formula (1) R4—NR2a3+??Formula (2) R1, R2, R3, and R4 represent specific substituent that may be different from each other. R1a and R2a represent a hydrogen atom or a specific substituent.

Abstract: Provided is a photoelectric conversion element in which a photosensitive layer is composed of a light absorbing agent containing a perovskite compound, the element including a protective layer that includes a compound having a molecular weight of 5000 or less which is represented by Formula (A), on a surface of the photosensitive layer; a method for manufacturing this photoelectric conversion element; and a solar cell which is formed of this photoelectric conversion element. RA—Z??Formula (A) In Formula (A), RA represents a specific group. Z represents an acidic group or a salt thereof. Further provided is a surface treating agent for a perovskite-type crystal film, including a compound having a molecular weight of 5000 or less which is represented by Formula (A).

Abstract: Provided is a photoelectric conversion element including at least a first electrode that includes a conductive support, a photosensitive layer that contains a light absorbing agent, a hole transport layer that contains an organic hole transporting material, and a second electrode. At least one of the photosensitive layer or the hole transport layer is provided on the conductive support to constitute the first electrode in combination with the conductive support. The photosensitive layer includes at least a compound having a perovskite-type crystal structure that includes a cation of an element of Group 1 in the periodic table or a cationic organic group A, a cation of a metal atom M other than elements of Group 1 in the periodic table, and an anion of an anionic atom or atomic group X as the light absorbing agent. The hole transport layer includes at least a compound represented by the following Formula 1 as the organic hole transporting material.

Abstract: Provided is a photoelectric conversion element including a first electrode that includes a photosensitive layer, which includes a light absorbing agent, and a second electrode. The light absorbing agent includes a compound having a perovskite-type crystal structure that includes a cation of a cationic organic group A, a cation of a metal atom M other than the element of Group 1, and an anion of an anionic atom X. A hole transport layer, which includes an organic hole transporting material, is provided between the first electrode and the second electrode. The organic hole transporting material has a molecular weight of 6,000 or less and includes halogen, a halogenated alkyl group, or a group represented by RA—X—*, where X represents S, NRB, or O, RA and RB represent a halogenated alkyl group, and * represents a bonding position.

Abstract: Provided is a photoelectric conversion element including a first electrode that includes a photosensitive layer, which includes a light absorbing agent, and a second electrode. The light absorbing agent includes a compound having a perovskite-type crystal structure including a cationic organic group A, a cation of a metal atom M other than the element of Group 1, and an anion of an anionic atom X, a hole transport layer, which includes a hole transporting material, is provided between the first electrode and the second electrode, the hole transporting material includes a compound including a condensed polycyclic aromatic group having a number of rings of 4 or greater, at least two rings thereof are hetero rings, and the condensed polycyclic aromatic group includes at least one structure selected from the group consisting of benzene, naphthalene, and phenanthrene.

Abstract: Provided are a photoelectric conversion element, a solar cell using the photoelectric conversion element, and a composition. The photoelectric conversion element includes a first electrode including a photosensitive layer, which includes a light absorbing agent, on a conductive support. The light absorbing agent includes a compound having a perovskite-type crystal structure that includes organic cations represented by the following Formulae (1) and (2), a cation of a metal atom, and an anion. R1—N(R1a)3+??Formula (1) R2—N(R2a)3+??Formula (2) In Formulae (1) and (2), R1 represents a specific group such as an alkyl group (including a specific substituent group in a case where the number of carbons is 1 or 2), and a cycloalkyl group. R2 represents a methyl group, an ethyl group, and the like. R1a and R2a represent a specific group such as a hydrogen atom and an alkyl group.

Abstract: Provided is a photoelectric conversion element including: a first electrode that includes a photosensitive layer containing a light absorbing agent on a conductive support; and a second electrode that is opposite to the first electrode. The light absorbing agent includes a compound having a perovskite-type crystal structure that includes a cation of an element of Group 1 in the periodic table or a cationic organic group A, a cation of a metal atom M other than the element of Group 1 in the periodic table, and an anion of an anionic atom or atomic group X. A hole transport layer, which includes a hole transporting material, is provided between the first electrode and the second electrode. The hole transporting material includes a compound represented by any one of the following Formulae (1) to (4).

Abstract: Provided are a photoelectric conversion element and a solar cell using the photoelectric conversion element. The photoelectric conversion element includes: a first electrode that includes a photosensitive layer, which includes a perovskite-type light absorbing agent, on a conductive support; a particle-containing layer that contains conductive fine particles and a polymer and is provided on the first electrode; and a charge transport layer that does not contain the conductive fine particles and is provided between the photosensitive layer and the particle-containing layer.

Abstract: Provided is a photoelectric conversion element including: a first electrode that includes a photosensitive layer containing a perovskite-type light absorbing agent on a conductive support; and a second electrode that is opposite to the first electrode. The perovskite-type light absorbing agent includes a metal cation M1 as a central ion of a perovskite-type crystal structure thereof, and a metal cation M2, of which a valence is different from a valence of the metal cation M1, of a metal atom other than elements of Group 1 in the periodic table. In addition, there are provided a solar cell, a method of manufacturing the photoelectric conversion element, and a metal salt composition.

Abstract: Provided are a photoelectric conversion element including a first electrode having a photosensitive layer including a light absorber on a conductive support and a second electrode facing the first electrode, in which the light absorber includes a compound having a perovskite-type crystal structure, and a compound represented by a specific formula is provided on a surface of the first electrode, a solar cell using the same, and a method for manufacturing a photoelectric conversion element including bringing a first electrode having a photosensitive layer in which a compound having a specific perovskite-type crystal structure is included as a light absorber on a conductive support into contact with a liquid containing a compound represented by specific Formula (AC).

Abstract: Provided are a photoelectric conversion element including a first electrode having a photosensitive layer including a light absorber on a conductive support and a second electrode facing the first electrode, in which the light absorber includes a compound having a perovskite-type crystal structure including organic cations, cations of a metallic atom other than elements belonging to Group I of the periodic table, and anions, and at least some of the organic cations constituting the compound are organic cations having a silyl group and a solar cell using the photoelectric conversion element. Also provided is a composition containing a compound represented by Formula (1a) and a halogenated metal. R13Si-L-NR23Hal??Formula (1a) In the formula, R1, R2, and L are specific groups. Hal represents a halogen atom.

Abstract: Provided are a photoelectric conversion element having a photosensitive layer including a light absorber, in which the light absorber includes a compound having a perovskite-type crystal structure including specific cations and anions, and at least some of the anions constituting the compound are organic anions represented by Formula (An) and a solar cell using this photoelectric conversion element. R1—C(?X1)—X2??Formula (An) R1 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, an aliphatic heterocyclic group, —N(R2)2, —OR3, —SR4, or a halogen atom. X1 represents an O atom or a S atom. X2 represents O? or S?. R2 to R4 are specific groups. Here, in a case in which X1 is an O atom and X2 is O?, R1 is a specific group.