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 DS

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1:

[0036] Using 36g of commercially available P25 nano-TiO2 powder produced by XX company in Germany, and commercially available 200nm anatase TiO 2 4g powder, added to 0.05mol / L, 70℃ TiCl 4 Carry out ultrasonic vibration for 10min in 1000ml of aqueous solution, then heat to 500℃ for heat treatment 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 connection between the primary particles is strengthened. The obtained sintered billet is crushed to obtain micron / submicron porous nanostructured powder. With this porous nanostructured TiO 2 The powder is a raw material and a porous nanostructured film is prepared by spraying on the surface of a flexible conductive substrate (such as ITO-PET, conductive polyester plastic) using a vacuum cold spray method. The cross-sectional structure of the film is shown in Figure 2, and the film is uniformly distributed on th...

Example Embodiment

[0037] Example 2:

[0038] Using 15nm anatase TiO2 nano powder 50g, 5g butyl titanate hydrolyzed to obtain 100ml of sol, ultrasonic dispersion for 5min, heating to 400 ℃ heat treatment for 20min, the Ti-containing material in the sol on the surface of the initial TiO2 particles and between Crystallized into new TiO 2 , The primary particles can be better connected together, and the obtained sintered billet is crushed to obtain a micron / submicron porous nanostructured powder. The porous nanostructured TiO 2 The powder is the raw material and the porous nano-structured film is prepared by spraying on the surface of the flexible conductive substrate by the vacuum cold spraying method. The film was subjected to a 125W medium-pressure mercury lamp 4cm away from the surface of the film and subjected to UV treatment for 3 hours to make the connection between the nanoparticles in the film better.

Example Embodiment

[0039] Example 3:

[0040] Furthermore, using the self-sintering connection of nano-TiO2 particles, the nano-TiO2 2 The powder is heat-treated, and heat-treated at 520°C for 4 hours. The porous nanostructured TiO 2 The powder is the raw material and the porous nano-structured film is prepared by spraying on the surface of the flexible conductive substrate by the vacuum cold spraying method. If the film is hydrothermally treated at 100°C for 10 hours, and then treated with a 28GHz microwave for 5 minutes, the purpose of strengthening the connection between particles can be achieved. Then, the porous nano-structured powder after being taken out and crushed and sieved is dried, and a porous nano-structured film is prepared by spraying the powder on the surface of the flexible conductive substrate by a vacuum cold spraying method.

[0041] The method of the present invention can not only prepare dye-sensitized solar cell nanocrystalline films on flexible substrates, but also prepare p...

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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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