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Photo-anode for dye-sensitized nano-crystalline solar batteries, preparation method and application thereof

A technology for solar cells and dye sensitization, applied in the application field of photoanode in solar cells, can solve the problems of weak absorption of visible light, unfavorable photoelectric conversion efficiency of cells, etc., and achieves improvement of photoelectric conversion efficiency, increased probability of absorption, and low cost. Effect

Inactive Publication Date: 2010-07-21
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Titanium dioxide thin films coated solely by titanium dioxide nanoparticles have weak absorption of long-wavelength visible light, which is not conducive to improving the photoelectric conversion efficiency of batteries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: The photoelectric conversion performance of a titanium dioxide thin film electrode coated by uniform mixing of titanium dioxide hollow spheres obtained from 0.2g 600nm carbon spheres and 4.0g TBT with an alcohol suspension containing 2.5g titanium dioxide nanoparticles.

[0032] 600nm carbon spheres were made of 1M glucose aqueous solution, put into an autoclave, sealed, heated in water for 8 hours, and kept at a temperature of 200°C. The obtained product was rotated and separated, and the solid matter was taken, washed four times with ethanol and distilled water, and then 80°C, 5 Hours of drying to obtain 600nm carbon spheres. Dissolve 0.2 g of the carbon spheres in 30 ml of toluene, disperse with a high-power ultrasonic of 100 to 600 W, drop into 4.0 g of TBT, stir in a vacuum glove box filled with nitrogen for 16 hours, then rotate and separate the obtained solution, take the solid matter, and use Repeated washing with ethanol and water four times to obtai...

Embodiment 2

[0033] Example 2: The photoelectric conversion performance of a titanium dioxide thin film electrode coated by uniform mixing of titanium dioxide hollow spheres obtained from 0.2 g of 600 nm carbon spheres and 4.0 g of TBT with an alcohol suspension containing 5.0 g of titanium dioxide nanoparticles.

[0034] 600nm carbon spheres were made of 1M glucose aqueous solution, put into an autoclave, sealed, heated in water for 8 hours, and kept at a temperature of 200°C. The obtained product was rotated and separated, and the solid matter was taken, washed four times with ethanol and distilled water, and then 80°C, 5 Hours of drying to obtain 600nm carbon spheres. Dissolve 0.2 g of the carbon spheres in 30 ml of toluene, disperse with a high-power ultrasonic of 100 to 600 W, drop into 4.0 g of TBT, stir in a vacuum glove box filled with nitrogen for 16 hours, then rotate and separate the obtained solution, take the solid matter, and use Repeated washing with ethanol and water four t...

Embodiment 3

[0035] Example 3: The photoelectric conversion performance of a titanium dioxide thin film electrode coated by uniform mixing of titanium dioxide hollow spheres obtained from 0.2g 600nm carbon spheres and 4.0g TBT with an alcohol suspension containing 6.5g titanium dioxide nanoparticles.

[0036] 600nm carbon spheres were made of 1M glucose aqueous solution, put into an autoclave, sealed, heated in water for 8 hours, and kept at a temperature of 200°C. The obtained product was rotated and separated, and the solid matter was taken, washed four times with ethanol and distilled water, and then 80°C, 5 Hours of drying to obtain 600nm carbon spheres. Dissolve 0.2 g of the carbon spheres in 30 ml of toluene, disperse with a high-power ultrasonic of 100 to 600 W, drop into 4.0 g of TBT, stir in a vacuum glove box filled with nitrogen for 16 hours, then rotate and separate the obtained solution, take the solid matter, and use Repeated washing with ethanol and water four times to obtai...

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Abstract

The invention provides a photo-anode for dye-sensitized nano-crystalline solar batteries, which comprises a transparent conductive substrate and a coating covering the transparent conductive substrate, wherein the coating contains titanium dioxide nano-particles. The photo-anode is characterized in that the anatase titanium dioxide hollow spheres are uniformly mixed in the coating. The invention also discloses a preparation method of the photo-anode and application thereof in solar batteries. Compared with the prior art, the preparation method has the advantages of using titanium dioxide hollow spheres as scattering particles in the photo-anode for dye-sensitized nano-crystalline solar batteries, increasing the probability that light is absorbed by titanium dioxide nanometer thin film and greatly improving the photoelectric conversion efficiency of batteries.

Description

technical field [0001] The invention relates to a photoanode of a dye-sensitized nanocrystalline solar cell, and also relates to a preparation method thereof. The invention also discloses the application of the photoanode in a solar cell. Background technique [0002] Dipyridylcarboxylate ruthenium complex sensitized porous titanium dioxide nanostructured photoanode photovoltaic cells——dye-sensitized solar cells have brought revolutionary innovations to the development of photoelectrochemical cells, with high photoelectric conversion efficiency and far lower prices than In traditional semiconductor solar cells, the titanium dioxide nanostructured photoanode mainly includes a transparent conductive substrate and a titanium dioxide nanoparticle coating film coated thereon, and the transparent conductive substrate is often made of conductive glass. For the technical literature in this aspect, please refer to the Chinese Invention Application Publication "Preparation Method of P...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/004H01M14/00H01M4/00H01L51/44H01L51/46H01L51/48
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 诸跃进张延伟张京王培卿杨广涛
Owner NINGBO UNIV
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