Titanium dioxide as well as preparation method thereof, slurry material of solar battery as well as preparation method thereof and solar battery

A technology for solar cells and titanium dioxide, applied in the field of solar cells, can solve the problems of uneven size distribution, difficult to control the size of sub-micron titanium dioxide, etc., and achieve the effects of uniform size distribution, improved photoelectric conversion efficiency, and good adhesion.

Inactive Publication Date: 2012-07-25
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the size of existing submicron titanium dioxide is difficult to control and the size distribution is uneven, and to provide a preparation method of submicron titanium dioxide

Method used

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  • Titanium dioxide as well as preparation method thereof, slurry material of solar battery as well as preparation method thereof and solar battery
  • Titanium dioxide as well as preparation method thereof, slurry material of solar battery as well as preparation method thereof and solar battery
  • Titanium dioxide as well as preparation method thereof, slurry material of solar battery as well as preparation method thereof and solar battery

Examples

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Embodiment 1

[0035] This embodiment provides a method for preparing submicron titanium dioxide, which includes the following steps:

[0036] Step 1: Prepare ammonia water (28% by mass) and distilled water into an ammonia solution, where the ratio of ammonia to water (including water in ammonia) is 1:20, and press 1 The titanium sulfate is heated and hydrolyzed in the ammonia solution for 8 hours at a mass ratio of 10 to form a colloidal solution.

[0037] Step 2: React the colloidal solution prepared in Step 1 in a water bath at 130°C for 48 hours to obtain a submicron titanium dioxide suspension.

[0038] Step 3: Centrifuge the above sub-micron titanium dioxide suspension at a speed of 4000 r / min for 30 min, wash with water, collect the precipitate, and dry at 70° C. to obtain sub-micron titanium dioxide powder.

[0039] The sub-micron titanium dioxide powder prepared in this example was scanned by S-4800 scanning electron microscope under 50,000 times magnification. The results are shown in figu...

Embodiment 2

[0048] This embodiment provides a method for preparing submicron titanium dioxide, which includes the following steps:

[0049] Step 1: Prepare an aqueous solution of sodium hydroxide and distilled water at a ratio of 1:1, and heat and hydrolyze tetrabutyl titanate in the aqueous solution at a mass ratio of 1:5 in a water bath at 30°C for 1 hour , Forming a colloidal solution.

[0050] Step 2: The colloidal solution prepared in Step 1 is reacted in a hydrothermal kettle for 40 hours under a water bath at 100° C. to obtain a submicron titanium dioxide suspension.

[0051] Step 3: Centrifuge the above sub-micron titanium dioxide suspension at a speed of 4000 r / min for 30 min, wash with water, collect the precipitate, and dry at 70° C. to obtain sub-micron titanium dioxide powder.

[0052] Optionally, the prepared submicron titanium dioxide powder can be used to prepare the dye-sensitized solar cell scattering layer slurry, and the preparation method includes the following steps:

[0053]...

Embodiment 3

[0060] This embodiment provides a method for preparing submicron titanium dioxide, which includes the following steps:

[0061] Step 1: Prepare a mixture of potassium hydroxide and sodium hydroxide and distilled water into an aqueous solution, wherein the mixture and distilled water are in a ratio of 1:100, and the potassium hydroxide and sodium hydroxide in the mixture are in a ratio The ratio is 1:1; in a water bath at 70°C, isopropyl titanate is heated and hydrolyzed in the aqueous solution at a mass ratio of 1:20 for 10 hours to form a colloidal solution.

[0062] Step 2: React the colloidal solution prepared in Step 1 in a water bath at 160°C for 3 hours in a hydrothermal kettle to obtain a submicron titanium dioxide suspension.

[0063] Step 3: Centrifuge the above sub-micron titanium dioxide suspension at a speed of 4000 r / min for 30 min, wash with water, collect the precipitate, and dry at 70° C. to obtain sub-micron titanium dioxide powder.

[0064] Optionally, the prepared s...

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Abstract

The invention provides sub-micron titanium dioxide as well as a preparation method thereof and a dye-sensitized solar battery containing the material, which belong to the technical field of solar batteries. According to the sub-micron titanium dioxide, the problems that the size of titanium dioxide prepared by a traditional method is difficult to control, the distribution of the size is non-uniform and the energy loss of the sunlight irradiation of a dye-sensitized solar battery prepared by the titanium dioxide is large can be solved. The preparation method of the sub-micron titanium dioxide, which is provided by the invention, comprises the step of preparing the colloid solution of titanium salt under an alkali environment and the step of generating the sub-micron titanium dioxide. The size of the sub-micron titanium dioxide prepared by the method provided by the invention is easy to control. The sub-micron titanium dioxide provided by the invention is prepared by the method. The dye-sensitized solar battery provided by the invention comprises a scattering layer prepared by the sub-micron titanium dioxide. According to the sub-micron titanium dioxide as well as the preparation method thereof and the dye-sensitized solar battery containing the material, the efficiency of the battery is obviously enhanced, and the loss of the energy of the sunlight irradiation is effectively avoided.

Description

Technical field [0001] The invention belongs to the technical field of solar cells, and specifically relates to a submicron titanium dioxide material and a preparation method thereof, and a dye-sensitized solar cell (DSSC) containing the material. Background technique [0002] As an important new energy supply device, solar cells have a wide range of applications. Among the many types of solar cells, dye-sensitized solar cells have high application value due to their long service life, simple production process, low production cost, non-toxic and pollution-free and other characteristics. [0003] At present, dye-sensitized solar cells are usually composed of a photoanode, an electrolyte solution and a counter electrode. The photoanode includes conductive glass and a porous nano titanium dioxide (TiO 2 ) Composed of dye sensitized layer; its working principle is: when sunlight is irradiated on the battery, the dye molecules are excited by the absorption of light energy, and the exci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053H01G9/042H01G9/20H01M14/00H01L51/44
CPCY02E10/542Y02E10/549
Inventor 卢磊曾绍忠王秀田焦方方陈效华
Owner CHERY AUTOMOBILE CO LTD
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