COLORING MATTER SENSITIZING SOLAR BATTERY

Japanese Patent JP3945038

B2

PROBLEM TO BE SOLVED: To enhance light energy converting efficiency, and to improve safety and durability by including at least one kind of copper bipyridyl univalent complex in a sensitizing coloring matter.
SOLUTION: A sensitizing coloring matter contained in a solar battery contains one or more kinds of copper bipyridyl univalent complexes expressed by formula I and/or formula II. In the formulae I, II, R1 to R8 represent each a substituent such as H, COOH, SO3, OH and NH2, and R10 and R11 represent each a substituent such as COOH, SO3, OH, NH2, an alkyl group and an aryl group. Here, at least one of R1 to R8 has a substituent of COOH, SO3, OH, NH2 or the like. This sensitizing coloring matter is excellent in adsorptivity to an oxide semiconductor of a semiconductor electrode carrying this. Oxide of transition metal such as Ti, Nb is named as this oxide semiconductor, the average particle size of the powder is 1 to 5,000 nm, and the specific surface area is desirably 5 to 500,000 m2/g.

Kei Sakagami
Sakaki Shigeyoshi

JP26622298A

July 18, 2007

September 21, 1998

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Matsushita Electric Industrial Co., Ltd

H01L31/04; H01M14/00; (IPC1-7): H01M14/00; H01L31/04

JP10233238A
JP6252379A
JP8075543A
JP8073834A

Nicolas Alonso-Vante,et.al,Spectral Sensitization of Large-band-gap Semiconductors (Thin Films and Ceramics) by a Carboxylated Bis(1,10-Phenanthroline)copper(I) Complex,J.CHEM.SOC.DALTON TRANS.,1994年,p.1649-1654

Fumio Iwahashi
Hiroki Naito
Daisuke Nagano

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