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Photoelectric conversion electrode, manufacturing method of the same, and dye-sensitized solar cell

A technology for photoelectric conversion electrodes and manufacturing methods, applied in capacitor electrodes, photovoltaic power generation, electrolytic capacitors, etc., can solve the problems of insufficient photoelectric conversion efficiency of photoelectric conversion elements, lack of tetrabromofluorescein co-adsorption pigment sensitization, etc., to achieve Improvement of production efficiency and economic benefits, high photoelectric conversion efficiency, and the effect of expanding the selection width

Inactive Publication Date: 2008-10-01
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dye-carrier zinc oxide electrode produced by the cathodic electrolysis method in this way lacks the sensitization effect of the co-adsorbed dye represented by tetrabromofluorescein Y, contrary to expectations, and the photoelectric conversion of the photoelectric conversion element using it lacks the sensitization effect. not yet efficient

Method used

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  • Photoelectric conversion electrode, manufacturing method of the same, and dye-sensitized solar cell
  • Photoelectric conversion electrode, manufacturing method of the same, and dye-sensitized solar cell
  • Photoelectric conversion electrode, manufacturing method of the same, and dye-sensitized solar cell

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no. 1 approach

[0040] figure 1 It is a schematic cross-sectional view schematically showing one embodiment of the photoelectric conversion electrode of the present invention. The photoelectric conversion electrode 11 is an electrode in which a porous metal oxide layer 14 including zinc oxide as a metal oxide and a sensitizing dye (pigment) is laminated on a substrate 12 having a conductive surface 12a.

[0041] The substrate 12 is not particularly limited as long as it can at least support the metal oxide layer 14, its type, size and shape. Plastic substrates such as ethylene glycol formate, polyethylene, polypropylene, and polystyrene, metal substrates or alloy substrates, ceramic substrates, or laminates thereof, and the like. Furthermore, the substrate 12 preferably has light transmittance, and more preferably has excellent light transmittance in the visible light region. Further, it is preferable that the base body 12 has bendability, and in this case, various forms of structures resul...

no. 2 approach

[0076] image 3 It is a schematic cross-sectional view schematically showing one embodiment of the dye-sensitized solar cell of the present invention. The dye-sensitized solar cell 31 has: the photoelectric conversion electrode 11 described in the above-mentioned first embodiment as the photoelectric conversion electrode 32; the counter electrode 33 arranged opposite thereto; 33 between charge transport layers 34 .

[0077] The conductive surface 33 a of the counter electrode 33 is arranged to face the metal oxide layer 14 . Moreover, as the counter electrode 33, a well-known counter electrode can be suitably used. For example, it can be an electrode having a conductive film on a transparent substrate like the substrate 12 having the conductive surface 12a of the photoelectric conversion electrode 11 described above, or an electrode on a transparent substrate. Electrodes of metal, carbon, conductive resin and other films are further formed on the conductive film.

[0078] A...

Embodiment 1

[0083] First, SnO doped with fluorine is used as the substrate 2 A transparent glass substrate with a transparent conductive film (trade name A110U80, manufactured by Asahi Glass Fabritech Co., Ltd.) was attached to one end of the transparent conductive film with a wire and connected to the working electrode of the stabilized power supply. Next, a masking tape having an opening of 40 mm×40 mm was covered on the surface of the transparent conductive film and the wire connection portion, and only the transparent conductive film was exposed at the opening, thereby producing a cover film portion.

[0084] Furthermore, a wire was connected to a zinc plate as a counter electrode, and an Ag / AgCl electrode as a reference electrode was connected to a reference point (reference). Thereafter, in a container made of polypropylene, the cover film portion of the transparent conductive film of the transparent glass substrate was arranged to face the counter electrode, and the reference elect...

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Abstract

There are disclosed a photoelectric conversion electrode having a large amount of a dye to be supported and an excellent dye replacement property and having a capability of improving a photoelectric conversion efficiency, a manufacturing method of the photoelectric conversion electrode and the like. A photoelectric conversion electrode (11) according to the present invention can be manufactured by laminating a porous metal oxide layer (14) including a metal oxide and a dye on a substrate (12) having a conductive surface (12a), and the metal oxide layer (14) has a specific surface area of 70 to 250 m 2 / g and a void ratio of 50 to 75%. Specifically, the metal oxide layer (14) can be formed by a cathode electrolytic deposition process using an electrolyte containing a metal salt and 80 to 500 [mu]M of template dye, the template dye co-adsorbed on the metal oxide layer (14) is desorbed, and a sensitizing dye different from the template dye is more preferably re-adsorbed.

Description

technical field [0001] The present invention relates to a photoelectric conversion electrode, a manufacturing method thereof, and a dye-sensitized solar cell provided with the photoelectric conversion electrode. Background technique [0002] In 1991, Gratzel et al. disclosed a dye-sensitized solar cell, which has attracted attention as an organic solar cell capable of achieving a conversion efficiency of 10% or more. Recently, research and development of its application has been actively carried out in various research institutions at home and abroad. This dye-sensitized solar cell has a basic structure in which a redox electrolytic solution is injected between an electrode and a counter electrode arranged to face it. As an electrode, a structure in which a porous titanium oxide electrode having a sensitizing dye adsorbed thereon was provided on a transparent conductive film of a transparent glass substrate was used. Furthermore, the titanium oxide electrode is produced by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/04H01L31/18H01L51/44H01L51/46H01L51/48H01G9/04H01G9/042H01G9/20H01M14/00C25D9/08
CPCY02E10/542H01G9/2059H01G9/204H01G9/2004H01L2251/306Y02P70/50H10K2102/102
Inventor 门田敦志繁田德彦
Owner TDK CORPARATION
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