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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 Improve production efficiency and economic benefits, high photoelectric conversion efficiency, and improve mechanical strength

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

[0047] figure 1 It is a schematic cross-sectional view schematically showing one embodiment of the photoelectric conversion electrode of the present invention. In the photoelectric conversion electrode 11, on a base 12 having a conductive surface 12a, an underlayer 13 containing zinc oxide as a metal oxide, and a base layer 13 containing zinc oxide as a metal oxide and a sensitizing dye (pigment) are sequentially laminated. ) electrode made of porous metal oxide layer 14.

[0048] The substrate 12 is not particularly limited as long as it can at least support the metal oxide layer 14, and its type, size, and shape are not particularly limited. Plastic substrates such as polyethylene terephthalate, polyethylene, polypropylene, and polystyrene, metal substrates, alloy substrates, ceramic substrates, or laminates thereof. Furthermore, the substrate 12 preferably has light transmittance, and more preferably has excellent light transmittance in the visible light region. Further,...

no. 2 approach

[0087] 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 is a cell provided with the photoelectric conversion electrode 11 described in the above-mentioned first embodiment as the photoelectric conversion electrode 32, and has: the photoelectric conversion electrode 32, the counter electrode 33 arranged to face it, and the arrangement The charge transport layer 34 between the photoelectric conversion electrodes 32 and the counter electrode 33 .

[0088] The conductive surface 33 a of the counter electrode 33 is arranged to face the metal oxide layer 14 . Moreover, a known counter electrode can be suitably used as the counter electrode 33. For example, like the above-mentioned substrate 12 having the conductive surface 12a of the photoelectric conversion electrode 11, a counter electrode having a conductive film on a transparent substrate can be used, ...

Embodiment 1

[0094]

[0095] Before the production of the photoelectric conversion electrode, the current-potential diagram during the electrolysis of the base layer was measured. First, as a substrate, prepare SnO doped with fluorine 2 A transparent glass substrate (trade name: A110U80, manufactured by Asahi Glass Fabritech Co., Ltd.) with a transparent conductive film was attached to one end of the transparent conductive film and connected to a working electrode of a stabilized power supply. Next, a masking tape having an opening of 5 mm×20 mm was covered on the surface of the transparent conductive film and the wire connection portion so that only the transparent conductive film was exposed at the opening, thereby producing a cover film portion.

[0096] 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 f...

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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 capability of improving a mechanical strength and a photoelectric conversion efficiency. In a photoelectric conversion electrode 11 according to the present invention, on a substrate 12 having a conductive surface 12 a, an underlayer 13 containing a metal oxide and a porous metal oxide layer 14 including a metal oxide and a dye can be prepared by an electrolytic deposition process, and an electrolysis potential of the underlayer 13 is set to a potential or less of a flection point having a minimum potential among a plurality of flection points observed in a range of 0 to -1.5 V (vs. Ag / AgCl) in a current-potential profile during electrolytic deposition, whereby the underlayer is formed so that pointed crystal particles 13 a of the metal oxide are piled up in a layer thickness direction.

Description

technical field [0001] The present invention relates to a photoelectric conversion electrode, a manufacturing method, 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 coating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/0224H01L31/04H01L51/48H01L51/44H01L51/46H01L51/42H01G9/04H01G9/042H01G9/048H01G9/20H01M14/00C25D9/08
CPCH01G9/2027H01G9/2059H01L51/0006H01L51/4233Y02E10/542Y02P70/50H10K71/125H10K30/152
Inventor 门田敦志繁田德彦
Owner TDK CORPARATION
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