TRANSITION METAL COMPLEX AND COMPOUND USEFUL AS LIGAND THEREOF, AS WELL AS OXIDE SEMICONDUCTOR ELECTRODE CONTAINING THE SAME AND DYE-SENSITIZED SOLAR CELL

Title:

TRANSITION METAL COMPLEX AND COMPOUND USEFUL AS LIGAND THEREOF, AS WELL AS OXIDE SEMICONDUCTOR ELECTRODE CONTAINING THE SAME AND DYE-SENSITIZED SOLAR CELL

Document Type and Number:

Japanese Patent JP2011157449

Kind Code:

A

Abstract:

To provide a photo-sensitizing dye and its ligand which has good photoelectric conversion efficiency and especially enhanced durability (especially high temperature durability), as well as to provide an oxide semiconductor electrode containing those and a dye-sensitized solar cell.

A divalent transition metal complex includes: a bipyridyl acid ligand (i) such as a dicarboxybipyridine (dcbpy) ligand, as an adsorption site to an oxide semiconductor particle surface such as titanium dioxide; a ligand (ii) selected from among an isothiocyanate group, an isocyanato group, and an isoselenocyanato group, which enables absorption and excitation of a long wavelength, and charge transfer; and a bipyridyl (bpy) ligand (iii) directly or conjugatedly linked to an aryl or heteroaryl group-substituted heterocyclic five-membered ring, which enhances absorbance of a transition metal complex, and also enhances a bathochromatic effect of absorption. The photosensitizing dye having the structure is also disclosed.

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Inventors:

NODA SHUJI
IMAWAKA NAOTO
MATSUBAYASHI KAZUHIKO
TANAKA KOICHI
FURUKAWA MAKOTO

Application Number:

JP2010019197A

Publication Date:

August 18, 2011

Filing Date:

January 29, 2010

Export Citation:

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Assignee:

SHIMANE PREFECTURE
KOBE TENNENBUTSU KAGAKU KK

International Classes:

C09B57/10; H01L31/04; H01M14/00; C07D213/79; C07D409/14; C07F15/00

Domestic Patent References:

JP4980479B2	2012-07-18
JP2008021496A	2008-01-31
JP4980479B2	2012-07-18

Foreign References:

WO2009020098A1

2009-02-12

Other References:

JPN6014008313; Ａｎｇｅｗａｎｄｔｅ　Ｃｈｅｍｉｅ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　ＥｄｉｔｉｏｎＶｏｌ．４７, 2008, ｐ．７３４２-７３４５
JPN6014013957; Ｊｏｕｒｎａｌ　ｏｆ　Ｍａｔｅｒｉａｌｓ　ＣｈｅｍｉｓｔｒｙＶｏｌ．１９, 2009, ｐ．５３６４-７６

Attorney, Agent or Firm:

Yoshikazu Tani
Kazuo Abe

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