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Electrolyte compositon, photoelectric converter and dye-sensitized solar cell using same

A technology of electrolytes and compositions, applied in electrical components, circuits, photosensitive devices, etc., can solve the problems such as the reduction of conversion efficiency of photoelectric conversion components

Inactive Publication Date: 2008-11-26
FUJIKURA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since these gels are electrical insulators with very high resistance, there is a problem that the conversion efficiency of the photoelectric conversion element is significantly lower than when no gel is added.

Method used

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  • Electrolyte compositon, photoelectric converter and dye-sensitized solar cell using same
  • Electrolyte compositon, photoelectric converter and dye-sensitized solar cell using same
  • Electrolyte compositon, photoelectric converter and dye-sensitized solar cell using same

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Experimental program
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Effect test

no. 1 Embodiment approach

[0040] Hereinafter, the present invention will be described in detail based on the first embodiment of the present invention.

[0041] The electrolyte composition according to the first embodiment of the present invention contains an ionic liquid and conductive particles as main components.

[0042] The electrolyte composition according to the first embodiment of the present invention contains an ionic liquid as a first essential component.

[0043] The ionic liquid is not particularly limited, and examples thereof include room temperature molten salts that are liquid at room temperature and have a compound having a quaternary nitrogen atom as a cation. Examples of the cation of the room temperature melting salt include imidazolium derivatives, pyridinium derivatives, quaternary ammonium salt derivatives, and the like. Examples of the anion of room temperature molten salt include BF 4 - 、PF 6 - 、F(HF) n - , bis(trifluoromethylsulfonyl)imide [N(CF 3 SO 2 ) 2 - ], iod...

Embodiment A1-1～5

[0080] As the conductive particles in the above electrolytic solution, with respect to the total amount of the electrolyte composition, any one of carbon nanotubes, carbon fibers and carbon black was mixed in a ratio of 1% by mass, and centrifuged to obtain Examples A-1~ The electrolyte composition in which the ionic liquid-containing electrolyte composition of 10 was gelled. At this time, the compounding quantity of electroconductive particle was about 1.25 mass % with respect to the ionic liquid. (Production of photoelectric conversion elements in Examples A1-1 to 5, A2, and A3)

[0081] As a transparent electrode substrate, a glass substrate with a 100 mm × 100 mm FTO film is used. On the surface of the FTO film (conductive layer) side of the transparent electrode substrate 2, a slurry dispersion solution of titanium oxide with an average particle diameter of 20 nm is applied and dried. , and heat-treated at 450° C. for 1 hour to form a porous oxide semiconductor film with...

no. 2 Embodiment approach

[0096] Hereinafter, the present invention will be described in detail based on a second embodiment of the present invention.

[0097] The electrolyte composition according to the second embodiment of the present invention either contains the ionic liquid (A) and the oxide semiconductor particles (B), or contains the ionic liquid (A), the oxide semiconductor particles (B) and the conductive particles ( C). In addition, in a preferred embodiment, the electrolyte composition of the present invention is in the form of a gel. Here, put 10 cc of electrolyte into a cylindrical glass tube with an inner diameter of 15 mm and a depth of 10 cm, and turn the glass tube upside down at room temperature (23°C). If all the electrolyte does not fall to the bottom after 15 minutes, the Electrolytes are by definition gel-like.

[0098] The electrolyte composition according to the second embodiment of the present invention contains an ionic liquid (A) as a first essential component.

[0099] T...

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Abstract

Disclosed are an electrolyte composition mainly containing an ionic liquid and conductive particles; another electrolyte composition containing an ionic liquid and, oxide semiconductor particles or oxide semiconductor particles and conductive particles; and still another electrolyte composition containing an ionic liquid and insulating particles. Also disclosed are an photoelectric converter containing one of such electrolyte compositions as an electrolyte, and another photoelectric converter which comprises a working electrode having a dye-loaded oxide semiconductor porous film on an electrode substrate, a counter electrode arranged opposite to the working electrode, and an electrolyte layer which is composed of one of the above-defined electrolyte compositions and arranged between the working electrode and the counter electrode.

Description

technical field [0001] This application cites and claims priority to the following: Japanese Patent Application No. 2003-200626 filed on July 23, 2003, Japanese Patent Application No. 2003-347193 filed on October 6, 2003, 2004 Japanese Patent Application No. 2004-82934 filed on March 22, Japanese Patent Application No. 2003-196561 filed on July 14, 2003, Japanese Patent Application No. 2003-200629 filed on July 23, 2003, 2004 Japanese Patent Application No. 2004-82586 filed on March 22, 2004. [0002] The present invention relates to an electrolyte composition used for a photoelectric conversion element such as a dye-sensitized solar cell, and a photoelectric conversion element using the same. Background technique [0003] Dye-sensitized solar cells were developed by Graetzel in Switzerland. The battery has the advantages of high conversion efficiency and low manufacturing cost, and has attracted wide attention as a new type of solar cell (for example, refer to: Japanese P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M14/00H01B1/06H01L31/04H01G9/20
CPCY02E10/542
Inventor 臼井弘纪田边信夫松井浩志江连哲也柳田祥三
Owner FUJIKURA LTD