Nippon Kayaku Kabushiki Kaisha

Topy Industries, Limited

Masayoshi Kaneko

Teruhisa Inoue

Koichiro Shigaki

Takayuki Hoshi

Akira Maenosono

Masahiro Nakajima

Hisahiko Kusano

Toshihiko Sato

Tsutomu Namiki

Takahiko Sahara

Disclosed is a photoelectric conversion device wherein a methine dye represented by the formula (1) below is supported by a thin film of oxide semiconductor particles arranged on a substrate. Also disclosed is a solar cell manufactured by using such a photoelectric conversion device.  (In the formula (1), n represents an integer of 0-5; m represents an integer of 0-5; R-Rindependently represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; X and Y independently represent a hydrogen atom; an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; Z represents an oxygen atom, a sulfur atom or the like; A, A, A, Aand Aindependently represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; and rings a, b and c may be substituted.).

Dye-sensitized photoelectric conversion device

Disclosed is a dye-sensitized photovoltaic device in which a metal complex dye represented by Formula (1), or a salt thereof, is carried on a thin film of oxide semiconductor micrograins disposed on a substrate. (In Formula (1), mrepresents an integer from 1 to 2 and nrepresents an integer from 1 to 3. Xrepresents an oxygen atom or sulfur atom. Yand Yeach independently represent a thiocyanate group (&#x2014;SCN) or isothiocyanate group (&#x2014;NCS). Mand Mrepresent hydrogen atoms. Rand Rrepresent hydrogen atoms. Rand Reach independently represent a straight-chain alkyl group with 1 to 6 carbons. Further, when mis 2 and there are multiple of each of Rand R, each of Rand Rmay be the same as or different from one another.)

Dye-sensitized photovoltaic device comprising a ruthenium metal complex

Disclosed is a photoelectric conversion device comprising a first conductive support having a layer containing a semiconductor, a second conductive support arranged opposite to the first conductive support and having a counter electrode, and a charge transfer layer interposed between the first conductive support and the second conductive support at a certain distance from the supports, and a sealing agent which is arranged around the charge transfer layer in the form of a single or more than single layer for bonding the first conductive support and the second conductive support together.

Dye-sensitized photoelectric conversion device and method for manufacturing same

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.

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.

A heat treatment process applicable to bushings used in tracks of endless track tractor comprises heating a bushing made of middle carbon low alloy steel material from the outer peripheral surface thereof until the inner circumferential surface thereof achieves a temperature range of Ac.sub.3 .ltoreq.T.ltoreq.Ac.sub.3 +50.degree. C. where T is the temperature in .degree.C. of the heated circumferential surface and Ac.sub.3 is the transformation temperature in .degree.C. of the steel. The heating is accomplished with an induction heating whereafter the steel is cooled from the outer peripheral surface, resulting in hardening the same along the entire thickness thereof. The treatment is followed by tempering of the steel.

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Tokyo, Japan

Masayoshi Kaneko