Method for preparing TiO2/ conducting polymer thin film

A conductive polymer and thin film technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high cost and complex preparation process, achieve the effect of smooth surface, wide source of raw materials, and improved film-forming performance

Inactive Publication Date: 2011-05-18
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method also uses organic dyes as titanium dioxide sensitizers, and requires screen printing technology when preparing titanium dioxide films, which makes the preparation process of titanium dioxide films complicated and expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First, add 37.5mL of commercially available reagent grade ethanol into the beaker, and add 3mL of 70% HNO by weight while stirring. 3 With 5mL deionized water, slowly drip 17mL of commercially available reagent grade butyl titanate into the beaker under stirring, and continue stirring for 20 minutes to obtain light yellow transparent TiO 2 Sol.

[0020] For the treatment of ITO conductive glass, first ultrasonically clean it with washing liquid for 10 minutes, then ultrasonically clean it with deionized water for 10 minutes, then ultrasonically clean it with acetone and isopropanol for 10 minutes, and finally use N 2 Blow dry and set aside.

[0021] Then ethanol and polyethylene dioxythiophene / polybenzene sulfonic acid (a reagent grade product from Sigma-Aldrich, USA, the solvent is water, where the mass fraction of polyethylene dioxythiophene is 0.5%, and the mass fraction of polyphenylene sulfonic acid 0.8%) according to the volume ratio of 1:1 uniformly mixed, the mixed so...

Embodiment 2

[0023] First, add 30mL ethanol into the beaker, and add 3mL 70% HNO dropwise while stirring. 3 With 8mL of deionized water, slowly drop 13.7mL of butyl titanate into the beaker under stirring, continue to stir for 60 minutes, the mixed solution forms a light yellow transparent colloidal solution, you can get uniform particle size distribution, spherical TiO 2 Sol.

[0024] ITO conductive glass is treated by ultrasonic cleaning with washing liquid for 20 minutes, then with deionized water for 20 minutes, and then with acetone and isopropanol for 20 minutes, and finally with N 2 Blow dry and set aside.

[0025] An aqueous solution of poly[2-(3-thienyl)-ethoxy-4-butylsulfonic acid] with a concentration of 12 mg / mL was prepared for use. Then, ethylene glycol and polyethylene dioxythiophene / polybenzene sulfonic acid are uniformly mixed in a volume ratio of 1:1, and the mixed solution is spin-coated on the surface of ITO conductive glass at a speed of 1200r / min. The latter ITO conductive...

Embodiment 3

[0027] First, add 50mL ethanol into the beaker, and add 3mL 70% HNO dropwise while stirring. 3 And 8mL deionized water, slowly drip 17mL butyl titanate into the beaker under stirring, and continue to stir for 60 minutes to obtain light yellow transparent TiO 2 Sol.

[0028] ITO conductive glass, first ultrasonically clean it with washing liquid for 30 minutes, then ultrasonically clean with deionized water for 30 minutes, then ultrasonically clean with acetone and isopropanol for 30 minutes, and finally use N 2 Blow dry and set aside.

[0029] An aqueous solution of poly[2-(3-thienyl)-ethoxy-4-butylsulfonic acid] with a concentration of 15 mg / mL was prepared for use. Then, glycerol and polyethylenedioxythiophene / polyphenylsulfonic acid were uniformly mixed in a volume ratio of 1:1, and the mixed solution was spin-coated on the surface of ITO conductive glass at a speed of 2500r / min. The latter ITO conductive glass was dried at 100°C for 0.5h before use. First, the ITO conductive g...

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Abstract

The invention relates to a method for preparing a TiO2 / conducting polymer thin film used in a solar cell. Firstly, TiO2 collosol is prepared; poly <2-(3-thienyl)-ethyoxyl-4-butyl sulfonate solution of which the concentration is 10-15mg / mL is prepared; and then, lower alcohol (one of alcohol, glycol and glycerin) is evenly mixed with PEDT / polyphenyl sulfoacid according to the volume ratio of 1:1;the mixed solution is rotated for film coating on the ITO conductive glass surface at the speed of 50-2500r / min; the ITO conductive glass after film coating is dried for 0.5-5 hours at the temperature of 50-100 DEG C; then, the ITO conductive glass is put in TiO2 collosol for dipping for 15-30 minutes so as to be eluted with high purity water; and the obtained product is dried by N2. ITO conductive glass of which the surface adsorbs PEDT / polyphenyl sulfoacid and TiO2 is dried at the temperature of 450-550 DEG C for 2-4 hours and is then put in polymer 2-(3-thienyl)-ethyoxyl-4-butyl sulfonate solution for dipping for 15-30 minutes; then, the obtained product is eluted with high purity water and dried by N2; the obtained product is dried at the temperature of 150-250 DEG C for 1-3 hours to obtain TiO2 / conducting polymer thin film. The invention has simple technology, low cost and favorable product quality.

Description

Technical field [0001] The present invention involves a TIO 2 / Preparation technology of conductive polymer film.TiO prepared by this method of invention 2 / The conductive polymer film has the advantages of simple process, easy operation, and low equipment requirements. Background technique [0002] Film materials based on inorganic semiconductor nanoparticles usually have good photoelectric characteristics. In the research fields of new optical film batteries, thin -film supercapacitors, electrical luminous devices, monitors, information storage, communication, sensors, etc.Titanium dioxide film, as a well -performed inorganic functional material, has obtained widespread research in the fields of photoelectric catalysts, dye -sensitized solar cells, and made huge progress.At present, a variety of methods can be prepared to prepare titanium dioxide film materials. For example, the metal titanium steaming into the metal is used to use a vacuum sputtering method, and then the metal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01L51/44H01G9/20H01G9/004H01M14/00
CPCY02E10/50Y02E10/549
Inventor 甘礼华赵丽樊荣刘明贤陈龙武
Owner TONGJI UNIV
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