Coloring matter-sensitized photoelectric conversion element, process for producing the coloring matter-sensitized photoelectric conversion element, electronic equipment, semiconductor electrode, and p

A photoelectric conversion and semiconductor technology, applied in semiconductor devices, capacitors, photovoltaic power generation, etc., can solve problems such as insufficient light absorption rate

Inactive Publication Date: 2009-12-02
SONY CORP
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  • Application Information

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Problems solved by technology

That is, it is considered that since there is no dye that can efficiently absorb all the light of various wavelengths contained in sunlight, the light absorption rate in the dye-sensitized solar cell using one dye is insufficient

Method used

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  • Coloring matter-sensitized photoelectric conversion element, process for producing the coloring matter-sensitized photoelectric conversion element, electronic equipment, semiconductor electrode, and p
  • Coloring matter-sensitized photoelectric conversion element, process for producing the coloring matter-sensitized photoelectric conversion element, electronic equipment, semiconductor electrode, and p
  • Coloring matter-sensitized photoelectric conversion element, process for producing the coloring matter-sensitized photoelectric conversion element, electronic equipment, semiconductor electrode, and p

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Embodiment

[0093] TiO 2 Fine particles are used as semiconductor fine particles. See Hironori Arakawa, "Recent Advances in Research and Development for Dye-Sensitized Solar Cells" (CMC) pp. 45-47 (2001) for the method of producing TiO as follows 2 A pasty dispersion in which the particles are dispersed. At room temperature, 125 mL of titanium isopropoxide was slowly added dropwise to 750 mL of 0.1 M nitric acid aqueous solution while stirring. After the dropwise addition was completed, the solution was transferred to a thermally stable solution tank at 80° C., and stirred for 8 hours to obtain a cloudy translucent sol solution. Then, the sol solution was cooled to room temperature, filtered through a glass filter, and its volume was measured to be 700 mL. The obtained sol solution was transferred to an autoclave, hydrothermally treated at 220° C. for 12 hours, and then dispersed by ultrasonic treatment for 1 hour. Then, the solution was concentrated using an evaporator at 40°C so tha...

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Abstract

This invention provides a coloring matter-sensitized photoelectric conversion element comprising an electrolyte layer (6) provided between a semiconductor electrode (3) formed of, for example, semiconductor fine particles, onto which a coloring matter for sensitizing has been adsorbed, and a counter electrode (5), wherein two types of coloring matters are used as the coloring matter and are adsorbed on respective different sites on the surface of the semiconductor electrode (3). The semiconductor particles are formed of, for example, TiO2. The two types of coloring matters are, for example, tris(isothiocyanato)-ruthenium(II)-2,2':6',2''-terpyridine-4,4',4''-tricarboxylic acid and 2-cyano-3-[4-[4-(2,2-diphenylethenyl)phenyl]-1,2,3,3a,4,8b-hexahydrocyclopent[b]indol-7-yl]-2-propenoic acid. The above constitution can realize the provision of a coloring matter-sensitized photoelectric conversion element, such as coloring matter-sensitized solar cells which can realize higher level of light absorbance and photoelectric conversion efficiency than the case where a single type of high-purity coloring matter is used, and a process for producing the coloring matter-sensitized photoelectric conversion element.

Description

technical field [0001] The present invention relates to, for example, a dye-sensitized photoelectric conversion device suitable for use in a dye-sensitized solar cell using a semiconductor electrode comprising Semiconductor particles adsorbed with sensitizing dyes. Background technique [0002] As a photoelectric conversion device for converting sunlight into electrical energy, a solar cell uses sunlight as an energy source, so it has minimal impact on the global environment and is expected to be further popularized. [0003] As research on various materials for solar cells has been conducted, many solar cells using silicon have been released on the market, and they are generally classified into crystalline silicon type solar cells using single crystal silicon or polycrystalline silicon and amorphous (amorphous) silicon type Solar battery. So far, solar cells tend to use single crystal silicon or polycrystalline silicon (ie, crystalline silicon). [0004] However, in a cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M14/00H01L31/04
CPCY02E10/542H01G9/2059Y02T10/7022H01G9/2031H01G9/2063Y02T10/70Y02P70/50H01L31/04
Inventor 米屋丽子诸冈正浩铃木祐辅
Owner SONY CORP
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