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Method for manufacturing nano titanium dioxide thin film through photocuring

A nano-titanium dioxide and titanium dioxide technology, which is applied in photosensitive equipment, photovoltaic power generation, capacitor electrodes, etc., can solve the problems of inability to effectively control the surface morphology of nano-titanium dioxide thin films, affecting the photoelectric conversion efficiency of dye-sensitized solar cells, and difficulty in entering dyes. Achieve the effect of improving photoelectric conversion efficiency, high specific surface area, and enhancing light scattering

Inactive Publication Date: 2013-06-19
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sol-gel method is generally used, and the prepared nano-titanium dioxide film is evenly distributed and has good film-forming properties. In addition, the nano-titanium dioxide film prepared by the sol-gel method has less pore structure and small specific surface area, and it is difficult for dyes to enter the interior of the nano-titanium dioxide film, which affects the photoelectric conversion efficiency of the dye-sensitized solar cell.

Method used

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  • Method for manufacturing nano titanium dioxide thin film through photocuring
  • Method for manufacturing nano titanium dioxide thin film through photocuring
  • Method for manufacturing nano titanium dioxide thin film through photocuring

Examples

Experimental program
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Embodiment 1

[0026] Clean the FTO transparent conductive glass ultrasonically for 15 minutes in the order of blue moon detergent, deionized water, acetone, deionized water, 95% (v / v) ethanol and deionized water, and finally soak in isopropanol solution for later use . 1.0g titanium dioxide nanoparticles were uniformly dispersed in a mixed solution of 6.0mL ethanol and 15.0mL isopropanol to obtain a; 2.0g monomer pentaerythritol triacrylate (PETA) and 0.025g photoinitiator 2-hydroxyl-2-methyl - Dissolve 1-phenylacetone (HMPP) in a mixed solution of 6.0mL ethanol and 8.0mL N,N-dimethylformamide (DMF) to obtain b. Then add b dropwise into a, and mix uniformly to prepare a colloidal titanium dioxide dispersion for film coating. The FTO transparent conductive glass soaked in the isopropanol solution was blown dry with nitrogen gas, and the colloidal dispersion was evenly coated on the cleaned FTO transparent conductive glass by the scraper coating method to obtain a layer of uniform thickness ...

Embodiment 2

[0028] The FTO conductive glass was ultrasonically cleaned for 15 minutes in the order of five cleaning powder, deionized water, acetone, deionized water, 95% (v / v) ethanol and deionized water, and finally soaked in isopropanol solution for later use. 1.0g titanium dioxide nanorods were uniformly dispersed in a mixed solution of 6.0mL ethanol and 15.0mL isopropanol to obtain a; 2.0g monomer pentaerythritol triacrylate and 0.03g photoinitiator 2-hydroxyl-2-methyl-1- Dissolve phenylacetone in a mixed solution of 6.0mL ethanol and 8.0mL N,N-dimethylformamide to obtain b. Then add b dropwise into a, and mix uniformly to prepare a colloidal titanium dioxide dispersion for film coating. Nitrogen gas was blown to dry the FTO conductive glass to obtain the substrate of the loaded film, and a layer of colloidal dispersion coating evenly distributed on the surface of the substrate was prepared by dipping and pulling method. The coating coated on the FTO conductive glass is placed under...

Embodiment 3

[0030] The FTO conductive glass was ultrasonically cleaned for 20 minutes in the order of hand sanitizer, deionized water, acetone, deionized water, 95% (v / v) ethanol and deionized water, and finally soaked in isopropanol solution for later use. 0.75g titanium dioxide nanoparticles were uniformly dispersed in a mixed solution of 5.0mL ethanol and 12.0mL isopropanol to obtain a; 1.0g monomer pentaerythritol triacrylate and 0.02g photoinitiator benzophenone were dissolved in 5.0mL ethanol and 7.0 mL N, N-dimethylformamide mixed solution to obtain b. Then add b into a, and mix uniformly to prepare a colloidal titanium dioxide dispersion for film coating. Dry the FTO conductive glass with nitrogen gas, and apply the prepared colloidal dispersion evenly on the cleaned substrate surface by scraping coating method. The colloidal titanium dioxide dispersion coating coated on the FTO conductive glass is placed under a UV lamp, and undergoes a polymerization reaction through ultraviole...

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Abstract

The invention belongs to the technical field of functional materials and photopolymerization and relates to a method for manufacturing a nano titanium dioxide thin film through photocuring. According to the method, a nano titanium dioxide colloid and a photopolymerisable monomer material are mixed to manufacture a colloid titanium dioxide dispersoid, the colloid titanium dioxide dispersoid is coated on the surface of a base material and polymerized and curied through radiation of ultraviolet to manufacture a film, and finally, the porous nano titanium dioxide thin film is obtained by performing thermal treatment on the film. The invention also provides a method for manufacturing the porous nano titanium dioxide thin film by photocuring an organic and inorganic mixed system coating. The method accords with a '5E' principal of a photocuring technology, the morphology, the thickness, the pore dimension and the like of the thin film are regulated and controlled by changing reaction conditions such as types of a monomer and a photoinitiator, the monomer addition amount, a film coating method and the like; the manufactured porous nano titanium dioxide thin film has the advantages of high specific surface area, smooth and uniform surface, high porosity and the like and is difficultly peeled. The method can be applied to a dye-sensitized solar cell; through a porous structure, the dye adsorption capacity can be enhanced, the light scattering performance is enhanced, and the photoelectric conversion efficiency of the cell is improved; and the manufactured thin film has a high practical value and a application prospect.

Description

technical field [0001] The invention relates to a method for preparing a porous nano-titanium dioxide film by using photocuring technology, which belongs to the technical field of functional materials and also belongs to the field of photopolymerization technology, and particularly relates to the method for preparing a porous nano-titanium dioxide film that can be used for dye-sensitized solar cell photoanodes by using photocuring technology method. Background technique [0002] Since the 1980s, the Swiss Federal Institute of Technology in Lausanne The professor's research group has been committed to the research of dye-sensitized porous nanoelectrodes. They used porous nano-titanium dioxide film to absorb transition metal Ru complex dyes, and selected an appropriate oxidation-reduction electrolyte to develop a dye-sensitized nanocrystalline thin film battery. . Battery research based on this principle made a breakthrough in 1991, O'Regan and This new type of low-cost p...

Claims

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Application Information

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IPC IPC(8): H01G9/04H01G9/20
CPCY02E10/542
Inventor 聂俊畅文凯徐福建牟雪雁
Owner BEIJING UNIV OF CHEM TECH
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