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Viscous dispersion liquid and method for producing same, porous semiconductor electrode substrate, and dye-sensitized solar cell

A manufacturing method and dispersion liquid technology, applied in conductive coatings, electrolytic capacitors, final product manufacturing, etc., can solve undisclosed problems and achieve excellent energy conversion efficiency

Active Publication Date: 2017-03-01
ZEON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no binder-free low-temperature film-forming paste suitable for these coating methods capable of forming a semiconductor porous film with good precision has yet been disclosed.

Method used

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  • Viscous dispersion liquid and method for producing same, porous semiconductor electrode substrate, and dye-sensitized solar cell

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Experimental program
Comparison scheme
Effect test

Embodiment

[0092] Next, the best mode for implementing the present invention will be shown as an example. In addition, a list of evaluation results is shown in Table 1.

[0093] (1) Preparation of binder-free low-temperature film-forming paste (hereinafter referred to as "paste") as a viscous dispersion

[0094] Add 18.4 g of anatase-type titanium dioxide nanoparticle powder (anatase type (a)) with an average particle diameter of 50 nm to brookite-type titanium dioxide nanoparticle dispersion aqueous sol with an average particle diameter of 10 nm (manufactured by Showa Titanium Corporation, NTB- 1; solid content concentration 15% by mass) 81.6 g was mixed so that the solid content conversion ratio (anatase titanium dioxide nanoparticle: brookite titanium dioxide nanoparticle) was 60:40. This mixture was dispersed by passing through a table-top three-roll mill 10 times to prepare a paste for screen printing (mass 100 g). The solid content concentration of the paste was 30.6% by mass, an...

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Abstract

The objective of the present invention is to provide a viscous dispersion liquid that is useful for forming a semiconductor porous membrane (porous semiconductor layer) by low-temperature deposition. This viscous dispersion liquid, which uses water as a dispersion medium, includes titanium dioxide nanoparticles and has a solid concentration of 30-60 mass%, said titanium dioxide nanoparticles including anatase crystalline titanium dioxide nanoparticles having an average particle size of 10-100 nm, inclusive, and brookite crystalline titanium dioxide nanoparticles having an average particle size of 5-15 nm, inclusive, and the viscosity at 25 DEG C being 10-500 Pa.s, inclusive.

Description

technical field [0001] The present invention relates to a viscous dispersion, a method for producing the viscous dispersion, a porous semiconductor electrode substrate and a dye-sensitized solar cell. Background technique [0002] Semiconductor nanoparticles represented by titanium dioxide nanoparticles are used as materials for forming ultra-thin films or porous films in the field of photocatalysts, electronic components such as capacitors, capacitors, and batteries, and energy fields such as fuel cells and solar cells. has been widely used. In the field of photocatalysts, as photocatalyst materials, film-forming materials containing nanoparticles of titanium dioxide have been put into practical use in the form of coating pastes or pastes for spraying, and the film-forming materials are used as coating materials and surface modification materials. use. In addition, in the field of energy, the development of electric storage devices and dye-sensitized solar cells using sem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/047C09C1/36C09D17/00H01G9/20
CPCY02E10/542Y02P70/50H01G9/2031C01P2004/64C01P2006/22C01P2006/40C01P2002/90C09C1/3607C09D5/02C01G23/047C09D17/008H01G9/2022H01G9/2068C09C1/36H01G9/20C09D17/00C09D1/00C09D5/24
Inventor 木暮英雄青山孝介岸本伸三池上和志
Owner ZEON CORP