Method for preparing nanocrystalline titanium dioxide film used by dye sensitization solar battery

A technology for solar cells and dye sensitization, applied in the field of preparing nanocrystalline titanium dioxide film, can solve the problems of disorder, imperfect controllability of titanium dioxide film preparation, complicated preparation process, etc., achieve high light transmittance, promote practical use The effect of simplifying and simplifying the preparation process

Active Publication Date: 2009-05-27
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a long time, the preparation of titanium dioxide film has relied on hydrothermal technology, which requires high temperature and high pressure conditions and a special reactor. In addition, the preparation process is relatively complicated, and the controllability of the titanium dioxide film is not perfect. The prepared nanocrystalline titanium dioxide The membrane is also disordered
These are all bad for dye-sensitized solar cells

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for preparing a nanocrystalline titanium dioxide film for a dye-sensitized solar cell is realized through the following steps:

[0017] In the first step, isopropyl titanate is dissolved in isopropanol at a volume ratio of 1:1, and stirred evenly;

[0018] In the second step, the polystyrene agent is dissolved in toluene at a ratio of 1:150 by mass ratio, and heated and stirred to completely dissolve it;

[0019] In the third step, the solutions prepared in the first step and the second step are mixed at a volume ratio of 3:1, and stirred for 16 hours to completely react the isopropyl titanate and polystyrene in isopropanol and toluene;

[0020] In the fourth step, according to the volume ratio of 1:1, terpineol is added to the solution obtained in the third step to obtain the colloid for silk screen printing;

[0021] The fifth step is to print the obtained colloid on the surface of conductive glass with screen printing technology, dry it at 110°C for 2 hours...

Embodiment 2

[0023] A method for preparing a nanocrystalline titanium dioxide film for a dye-sensitized solar cell is realized through the following steps:

[0024] The first step is to dissolve isopropyl titanate in ethanol at a volume ratio of 3:2, and stir evenly;

[0025] In the second step, polyoxyethylene-polyoxypropylene is dissolved in ethanol at a ratio of 1:300 by mass, and heated and stirred to completely dissolve it;

[0026] In the third step, the solutions prepared in the first step and the second step are mixed in a volume ratio of 2:1, and stirred for 24 hours to completely react the isopropyl titanate and polyoxyethylene-polyoxypropylene in ethanol;

[0027] In the fourth step, according to the volume ratio of 1:2, printing glue is added to the solution obtained in the third step to obtain the colloid for silk screen printing;

[0028] The fifth step is to print the obtained colloid on the surface of the conductive glass with screen printing technology, dry it at 110°C fo...

Embodiment 3

[0030] A method for preparing a nanocrystalline titanium dioxide film for a dye-sensitized solar cell is realized through the following steps:

[0031] The first step is to dissolve n-butyl titanate in ethanol at a volume ratio of 2:1, and stir evenly;

[0032] In the second step, the carboxyl-modified polystyrene is dissolved in N,N-dimethylformamide at a mass ratio of 1:100, and heated and stirred to completely dissolve it;

[0033] In the third step, the solutions prepared in the first step and the second step are mixed in a volume ratio of 2:1, and stirred for 24 hours to completely react the isopropyl titanate and carboxy-modified polystyrene in ethanol;

[0034] In the fourth step, according to the volume ratio of 3:1, terpineol is added to the solution obtained in the third step to obtain the colloid for silk screen printing;

[0035] The fifth step is to print the obtained colloid on the surface of the conductive glass with screen printing technology, dry it at 120°C ...

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Abstract

The invention relates to a method for preparing the nanometer Titania film of dope sensitized solar-energy battery. Wherein, it uses organic titanate as titania source, uses polymer template solvent, to be dissolved in organic solvent to prepare initial slurry, and uses silk screen print technique to print titania film at the surface of conductive glass, then treats at high temperature to obtain the nanometer titania film. The inventive product has high transmission rate, large surface area, high stability and long service life. And the invention has low cost while it can be used in optical catalyst, glass plating, and sensor.

Description

technical field [0001] The invention relates to a new method for preparing a nanocrystalline titanium dioxide film, which belongs to the fields of new material technology and new energy technology. Background technique [0002] Dye-sensitized solar cell is a new type of chemical solar cell developed in the 1990s. It has low cost, simple preparation process and good environmental compatibility and has a good application prospect. Preparation of high-performance titanium dioxide film is the key to improving its photoelectric conversion efficiency, and a simple preparation process is also a prerequisite for reducing its cost and moving toward practicality. However, for a long time, the preparation of titanium dioxide film has relied on hydrothermal technology, which requires high temperature and high pressure conditions and a special reactor. In addition, the preparation process is relatively complicated, and the controllability of the titanium dioxide film is not perfect. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01G9/20H01M14/00C01G23/053C03C17/23
CPCY02E10/542Y02P70/50
Inventor 吴季怀郝三存黄昀昉林建明黄妙良
Owner HUAQIAO UNIVERSITY
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