Dye-sensitized photoelectric conversion device
AssigneeNippon Kayaku Kabushiki Kaisha
InventorsMasaaki Ikeda, Koichiro Shigaki, Teruhisa Inoue
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Abstract
The present invention relates to an organic dye-sensitized photoelectric conversion device and a solar cell utilizing the same. In accordance with a demand to now for development of an organic dye-sensitized photoelectric conversion device with high conversion efficiency and high practicability using an inexpensive dye, there is provided in the present invention, a photoelectric conversion device with high conversion efficiency by producing a photoelectric conversion device by sensitizing fine semiconductor particles with a methine dye having specified skeleton.
Claims22
A photoelectric conversion device, characterized by using fine oxide semiconductor particles sensitized with a methine dye represented by Formula (1):
- (in Formula (1), each of R1 and R2 represents a hydrogen atom, an aromatic residual group which may have substituents, an aliphatic hydrocarbon residual group which may have substituents or an acyl group, provided that R1 and R2 may form a ring which may have substituents, by bonding with each other or with a benzene ring a1;
- m1 is an integer of 0 to 7;
- n1 is an integer of 1 to 7;
- X1 represents an aromatic residual group which may have substituents, a cyano group, a phosphate group, a sulfo group, a carboxyl group, a carboamido group, an alkoxycarbonyl group or an acyl group;
- each of A1 and A2 represents independently an aromatic residual group which may have substituents, a hydroxyl group, a phosphate group, a cyano group, a hydrogen atom, a halogen atom, an aliphatic hydrocarbon residual group which may have substituents, a carboxyl group, a carboamido group, an alkoxycarbonyl group or an acyl group, provided that when n1 is not smaller than 2 and A1 and A2 are present in plural, each of A1 and each of A2 may be the same or different each other. A ring which may have substituents may be formed using multiple substituents selected from A1 or each of A1 when A1 is present in plural, and A2 or each of A2 when A2 is present in plural, along with X1;
- Y1 represents a sulfur atom, a selenium atom, a tellurium atom and CR3R4 or NR5, wherein R3 and R4 represent a hydrogen atom, a halogen atom, an amide group, a hydroxyl group, a cyano group, a nitro group, an alkoxyl group, an acyl group, a substituted or unsubstituted amino group, an aliphatic hydrocarbon residual group which may have substituents or an aromatic residual group which may have substituents;
- R5 represents a hydrogen atom, an aromatic residual group which may have substituents, an aliphatic hydrocarbon residual group which may have substituents or an acyl group;
- when m1 is not smaller than 2 and Y1 is present in plural, each of Y1 may be the same or different each other;
- a benzene ring a, may have one or plural substituents, including a halogen atom, an amide group, a hydroxyl group, a cyano group, a nitro group, an alkoxyl group, an acyl group, a substituted or unsubstituted amino group, an aliphatic hydrocarbon residual group which may have substituents or an aromatic residual group which may have substituents;
- a benzene ring a1 may also form a ring which may have substituents by bonding of plural substituents themselves;
- and a ring b1 may have one or plural substituents including a halogen atom, an alkoxyl group, an acyl group, an aliphatic hydrocarbon residual group which may have substituents or an aromatic residual group which may have substituents;
- and a ring b1 may form a ring which may have substituents by bonding of plural substituents themselves)
A photoelectric conversion device, characterized by using an oxide semiconductor sensitized with one kind or more of a methine dye represented by Formula (1) and with a metal complex and/or an organic dye having a structure other than Formula (1).
A production method for a photoelectric conversion device, characterized by making fine oxide semiconductor particles, formed in a thin membrane, to carry a dye represented by Formula (1).
Fine oxide semiconductor particles sensitized with a methine dye according to the above Formulas (1) to (3).
A methine dye, characterized in that in the above Formula (1) , R1 and R2 represent benzene rings;
- Y1 represents a sulfur atom;
- m1 is an integer of 1 to 2;
- n1 is an integer of 1;
- X1 represents a carboxyl group;
- A1 represents a hydrogen atom;
- and A2 represents a cyano group.
A methine dye characterized in that in the above Formula (1), R1 and R2 represent benzene rings;
- Y1 represents a sulfur atom;
- m1 is an integer of 1 to 2;
- n1 is an integer of 1;
- and X1 and A2 form a rhodanine ring.
A methine dye characterized in that in the above Formula (3), R11 and R12 represent a substituted or unsubstituted amino group or an aromatic residual group which may have substituents;
- m3 is an integer of 0 to 3;
- n3 is an integer of 1 to 2;
- X3 represents a carboxyl group;
- A5 represents a hydrogen atom;
- and A6 represents a cyano group.
Dependencies are inferred from the claim text.