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Preparation method of photoanode, photoanode, dye-sensitized solar cell

A photoanode and conductive substrate technology, applied in photovoltaic power generation, photosensitive equipment, capacitor electrodes, etc., can solve the problems of complex production process, increased energy consumption, and rising battery cost of dye-sensitized solar cells, and achieve simple preparation process, photoelectric Effects of performance improvement and cost reduction

Active Publication Date: 2015-09-23
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most photoanodes are sintered in traditional kilns, which makes the production process of dye-sensitized solar cells complex, greatly increases energy consumption, and greatly increases the cost of batteries.

Method used

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  • Preparation method of photoanode, photoanode, dye-sensitized solar cell
  • Preparation method of photoanode, photoanode, dye-sensitized solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a method for preparing a photoanode, comprising the following steps:

[0026] Titanium dioxide crystals and ethyl cellulose with a particle size of 60 nanometers are housed in the spray gun tank used by the thermal spraying method, wherein the mass ratio of titanium dioxide to ethyl cellulose is 28:15. First preheat the conductive substrate 2 to 250° C. with an oxygen-acetylene flame, adjust the pressure of the oxygen and acetylene gas of the spray gun to 0.3 MPa and 0.15 MPa respectively, adjust the spray distance of the spray gun to 15 cm, and the spray angle to 80°. After adjusting the above parameters, turn on the switch of the feeding tank of the spray gun, and the powder supply speed of the spray gun tank is 10 g / min, so that the powder falls from the material tank and is ejected from the combustion flame at the end of the spray gun nozzle along with the airflow , the powder becomes molten droplets through a high-temperature flame, and hit...

Embodiment 2

[0031] This embodiment provides a method for preparing a photoanode, comprising the following steps:

[0032] Titanium dioxide crystals with a particle size of 50 nanometers and polyethylene glycol are installed in the spray gun tank used by the thermal spraying method, wherein the mass ratio of titanium dioxide to polyethylene glycol is 5:3. First preheat the conductive substrate to 300°C with an oxygen-acetylene flame, adjust the pressure of oxygen and acetylene gas in the spray gun to 0.15MPa and 0.05MPa respectively, adjust the spraying distance of the spraying gun to 12 cm, and the spraying angle to 65°. After adjusting the above parameters, turn on the switch of the feeding tank of the spray gun, and the powder supply speed of the spray gun tank is 3 g / min, so that the powder falls from the material tank and is ejected from the combustion flame at the end of the spray gun nozzle along with the airflow , the powder becomes molten droplets through a high-temperature flame,...

Embodiment 3

[0034] This embodiment provides a method for preparing a photoanode, comprising the following steps:

[0035] The spray gun tank used by the thermal spraying method is equipped with titanium dioxide crystals with a particle size of 40 nanometers, ethyl cellulose, and polyethylene glycol (the mass ratio of ethyl cellulose and polyethylene glycol is 1:1), wherein titanium dioxide and The mass ratio of ethyl cellulose and polyethylene glycol mixture is 9:5. First preheat the conductive substrate to 280°C with an oxygen-acetylene flame, adjust the pressure of oxygen and acetylene gas in the spray gun to 0.1MPa and 0.1MPa respectively, adjust the spraying distance of the spraying gun to 11 cm, and the spraying angle to 75°. After adjusting the above parameters, turn on the switch of the feeding tank of the spray gun, the powder supply speed of the spray gun tank is 7 g / min, so that the powder falls from the material tank and is sprayed out from the combustion flame at the end of th...

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Abstract

The invention discloses a preparation method of a photoanode, the photoanode and a dye-sensitized solar cell. The preparation method of the photoanode comprises the following steps: spraying a mixture containing nano-titanium dioxide crystals and a pore-forming agent onto a conductive substrate by a thermal spraying method so as to obtain the photoanode with a titanium dioxide film on the conductive substrate. The preparation method of the photoanode is simple in process and low in energy consumption; the defects that in the conventional titanium dioxide film sintering process, the energy consumption is high and the process is complicated are overcome; the cost of the dye-sensitized solar cell prepared by the preparation method is greatly reduced; and the titanium dioxide film formed by the titanium dioxide crystals on the photoanode prepared by the preparation method and the conductive substrate form a strong a bonding force and are effectively connected, so that a network structure facilitating photoelectron transmission is formed, and the photovoltaic performance of the dye-sensitized solar cell is easily improved.

Description

technical field [0001] The invention belongs to the technical field of solar cell manufacturing, and in particular relates to a method for preparing a photoanode, a photoanode and a dye-sensitized solar cell. Background technique [0002] In 1991, a research team led by Professor Greatzel of the Swiss Institute of Advanced Technology in Lausanne made nanoporous TiO 2 Applied to dye-sensitized solar cells (DSSCs), this research has made a breakthrough. Since Professor Gratzel in the laboratory small area (<0.2cm 2 ) cells have achieved a photoelectric conversion efficiency of 7.1%, dye-sensitized solar cells have attracted more and more scientists' attention. In 2004, the efficiency of small-area cells increased to 11.04%. At present, Sharp Corporation of Japan announced that small-area cells have reached 11.1%. Due to the potential application prospects of dye-sensitized solar cells, many commercial companies and research institutions have attracted a lot of effort, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/04
CPCY02E10/542
Inventor 焦方方朱广燕
Owner CHERY AUTOMOBILE CO LTD