Nippon Kayaku Kabushiki Kaisha

Akira Maenosono

Koichiro Shigaki

Teruhisa Inoue

Takayuki Hoshi

Masayoshi Kaneko

The present invention relates to a photoelectric conversion device sensitized by supporting a methine based dye represented by the following formula (1): (in the above formula, n represents an integer of 0 to 7; X and Y each represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue and the like. In addition, X and Y may combine together to form an optionally substituted ring. A, Aand Arepresent each independently an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue and the like. In addition, when n is other than 0, a plural number of Aand/or Aand/or Amay form an optionally substituted ring. The benzene ring 'a' may have substituent selected from a halogen atom, an amide group, a hydroxyl group, a cyano group and the like);on a thin film of oxide semiconductor fine particles provided on a substrate, and has features that the device can be manufactured at low cost and has high conversion efficiency.

Dye-sensitized photoelectric conversion device

The invention relates to a photoelectric conversion device, using oxide semiconductor fine particles sensitized with a methine dye represented by the following formula (1) and a solar cell using the same, and a solar cell high in conversion efficiency can be obtained at low cost: in the formula (1), n represents an integer of 0 to 7; Rrepresents an optionally-substituted aromatic residue or optionally-substituted aliphatic hydrocarbon residue, or an acyl group; X represents an optionally-substituted hydrocarbon residue which has 2 to 4 carbon atoms; Y represents a hydrogen atom, an optionally-substituted aromatic residue or aliphatic hydrocarbon residue, a carboxyl group or the like, and preferably represents a carboxyl group; Z represents an optionally-substituted aromatic residue or aliphatic hydrocarbon residue, or an acyl group; A, Aand Aeach independently represent a hydrogen atom, an optionally-substituted aromatic residue or aliphatic hydrocarbon residue or the like, and preferably represent a hydrogen atom; and a benzene ring a may have substituent(s) other than those shown in the above formula.

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Kita-ku, Japan

Akira Maenosono