Making method for flexible dye sensitized solar battery nano crystal thin film

A dye-sensitized, solar cell technology, applied in the field of nanocrystalline photoanode film manufacturing, achieves the effect of low industrialization characteristics and improved cell efficiency

Inactive Publication Date: 2008-02-20
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] For the low-temperature preparation of the most critical photoanode porous nanocrystalline film in DSC, the first two of the above requirements are relatively easy to achieve, but the third is quite challenging

Method used

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  • Making method for flexible dye sensitized solar battery nano crystal thin film
  • Making method for flexible dye sensitized solar battery nano crystal thin film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Commercially available P25 nanometer TiO powder 36g, commercially available 200nm anatase TiO produced by Germany XX company 2 Powder 4g, added to 0.05mol / L, 70°C TiCl 4 Ultrasonic vibration was carried out in 1000ml aqueous solution for 10min, then heated to 500°C for 30min, TiCl 4 TiO formed after hydrolysis 2 In the initial TiO 2 The primary particles can be better connected between the particles, so that the TiO 2 The connections between the primary particles are strengthened. The obtained sintered blank is crushed to obtain micron / submicron porous nanostructure powder. With this porous nanostructured TiO 2 The powder is used as a raw material to prepare a porous nanostructure film by spraying on the surface of a flexible conductive substrate (such as ITO-PET, conductive polyester plastic) by vacuum cold spraying method. The cross-sectional structure of the film is shown in Figure 2, and the film is evenly distributed on the surface of the substrate. The nano...

Embodiment 2

[0038] Use 50g of 15nm anatase-type TiO2 nano-powder and 100ml of sol obtained by hydrolyzing 5g of butyl titanate, ultrasonically disperse for 5 minutes, heat to 400°C for 20 minutes, and the Ti-containing substances in the sol are on the surface of the initial TiO2 particles and between them Crystallization to new TiO 2 , the primary particles can be better connected together, and the obtained sintered blank is crushed to obtain micron / submicron porous nanostructure powder, and the porous nanostructure TiO 2 The powder is used as a raw material to prepare a porous nanostructure film by spraying on the surface of a flexible conductive substrate by a vacuum cold spraying method. The film was subjected to UV treatment for 3 hours with a 125W medium-pressure mercury lamp at a distance of 4 cm from the surface of the film to make the connection between the nanoparticles inside the film better.

Embodiment 3

[0040] Furthermore, using the self-sintering connection of nano-TiO2 particles, the nano-TiO2 2 The powder was heat-treated at 520°C for 4h, and the porous nanostructured TiO 2 The powder is used as a raw material to prepare a porous nanostructure film by spraying on the surface of a flexible conductive substrate by a vacuum cold spraying method. If the film is hydrothermally treated at 100°C for 10h, and then treated with 28GHz microwave for 5 minutes, the purpose of strengthening the connection between particles can be achieved. Then dry the broken and sieved porous nanostructure powder, and spray the powder on the surface of the flexible conductive substrate by vacuum cold spraying method to prepare a porous nanostructure film.

[0041] The method of the invention can not only prepare the dye-sensitized solar cell nanocrystal film on the flexible substrate, but also prepare the porous nanostructure film on the hard conductive glass surface.

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Abstract

The utility model belongs to field of solar battery, and relates to a manufacturing approach of flexible nanometer-crystalline film of dye sensitizing solar battery, which adopts nanostructured porous TiO2 powder as the material and forms the porous TiO2 film by depositing on a conducting substrate by vacuum deposition. The utility model is characterized in that a porous TiO2 film is made by vacuum cold coating, wherein the nanostructured porous TiO2 powder is accelerated by airflow and impacts on the substrate or the TiO2 coat at a high speed to speed up the combinations of the powder under the pressure of high speed impact at instantaneous high temperature rise; therefore the coat is combined well with the substrate and so are the grains in the coat. The film made by the above approach dose not need to go through high temperature process during manufacturing and after manufacturing, therefore is suitable for manufacture of flexible nanometer-crystalline film of dye sensitizing solar battery.

Description

technical field [0001] The invention belongs to the field of solar cells, especially the technical field of dye-sensitized solar cells, and specifically relates to a method for manufacturing a nanocrystalline photoanode film of a flexible dye-sensitized solar cell on a flexible organic polymer conductive substrate. Background technique [0002] Solar cells can directly convert solar energy into electrical energy, which is one of the main forms of solar energy utilization. Currently researched solar cells mainly include: silicon solar cells, compound semiconductor cells, polymer film solar cells and dye-sensitized nanocrystalline solar cells. Since Grtzel et al. reported on Nature in 1991 that the solar energy conversion efficiency of dye-sensitized solar cells (DSCs) was >7%, DSCs have received extensive attention. So far, the energy conversion efficiency of DSC has exceeded 11%. According to the state of the electrolyte material, it is divided into two types: liquid D...

Claims

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Application Information

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IPC IPC(8): H01L31/18H01L51/48H01L21/36H01L21/28H01G9/20H01G9/04H01M14/00H01M4/04
CPCY02E10/542Y02E10/549Y02E60/12Y02P70/50
Inventor 李长久杨冠军范圣强李成新
Owner XI AN JIAOTONG UNIV
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