Title:
PHOTOELECTRODE MATERIAL AND PHOTOCELL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/049156
Kind Code:
A1
Abstract:
Provided is a photoelectric conversion material which is obtained through easy processing from a substance containing silicon oxide, which is inexpensive, imposes no burden on the environment, and is stable, as a component. Also provided are a photocell and a secondary photocell both including the conversion material.
Any of artificial quartz, molten quartz glass, soda-lime glass, non-alkali glass, and borosilicate glass, which are compositions containing silicon oxide, is pulverized, immersed in an aqueous solution of a hydrohalogenic acid, washed with water, and dried.
The resultant material is deposited on an electrode plate and this electrode plate is placed in water to which a suitable electrolyte has been added. This electrode plate is electrically connected to a counter electrode and irradiated with light. Thus, the material is used as a photoelectrode.
Alternatively, the material is enclosed together with an organic electrolyte in a vessel having a transparent electrode and a counter electrode, and this vessel is irradiated with light through the transparent electrode. Thus, a photocell is configured.
Inventors:
KOMATSU NOBUAKI (JP)
ITO TOMOKO (JP)
NANJO SHIN-ICHIRO (JP)
NAGAI HIROKI (JP)
ITO TOMOKO (JP)
NANJO SHIN-ICHIRO (JP)
NAGAI HIROKI (JP)
Application Number:
PCT/JP2010/068548
Publication Date:
April 28, 2011
Filing Date:
October 21, 2010
Export Citation:
Assignee:
INTERNAT FRONTIER TECH LAB INC (JP)
KOMATSU NOBUAKI (JP)
ITO TOMOKO (JP)
NANJO SHIN-ICHIRO (JP)
NAGAI HIROKI (JP)
KOMATSU NOBUAKI (JP)
ITO TOMOKO (JP)
NANJO SHIN-ICHIRO (JP)
NAGAI HIROKI (JP)
International Classes:
C25B11/06; H01L31/04; H01M14/00
Domestic Patent References:
| WO2005089941A1 | 2005-09-29 | |||
| WO2005089941A1 | 2005-09-29 | |||
| WO2006095916A1 | 2006-09-14 |
Foreign References:
| JP2006147559A | 2006-06-08 | |||
| JPH11265738A | 1999-09-28 | |||
| JP2001106546A | 2001-04-17 | |||
| JP2004196644A | 2004-07-15 | |||
| JPH0963657A | 1997-03-07 | |||
| JP2002321907A | 2002-11-08 | |||
| JP2004290747A | 2004-10-21 | |||
| JP2004290748A | 2004-10-21 | |||
| JP2004290747A | 2004-10-21 |
Other References:
KENNEDY J.H. ET AL.: "a-Fe203 Photoandodes Doped with Silicon", JOURNAL OF ELECTROCHEMICAL SOCIETY, vol. 127, no. 10, October 1980 (1980-10-01), pages 2307 - 2309, XP055110515
See also references of EP 2492375A4
See also references of EP 2492375A4
Attorney, Agent or Firm:
NANJO SHIN-ICHIRO (JP)
Shinichiro Nanjo (JP)
Shinichiro Nanjo (JP)
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