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Method for preparing dye sensitization solar battery electrode at low temperature

A solar cell and dye sensitization technology, which is applied in the field of low-temperature preparation of dye-sensitized solar cell electrodes, can solve the problems of high energy consumption and high risk, reduce transmission resistance, increase photocurrent, and avoid long-term high-temperature hydrothermal reaction Effect

Inactive Publication Date: 2010-11-24
IRICO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this process requires long-term high-temperature reaction, high energy consumption and high risk

Method used

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  • Method for preparing dye sensitization solar battery electrode at low temperature
  • Method for preparing dye sensitization solar battery electrode at low temperature
  • Method for preparing dye sensitization solar battery electrode at low temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of slurry

[0026] The molar ratio of titanium isopropoxide: ethylene glycol: glacial acetic acid is 1:3:20. Put ethylene glycol in a round-necked flask, heat evenly to 60°C, and add titanium isopropoxide dropwise under vigorous stirring. After the dropwise addition, keep stirring at this temperature for 15 minutes, then add glacial acetic acid, gradually raise the temperature to 90°C, and stir for 12 hours. At this time, the sol solution is transparent.

[0027] The sol solution obtained above was mixed with P25 titanium dioxide particles at a mass ratio of 1:1, and ground by a high-energy ball mill for 4 hours to prepare a titanium dioxide slurry.

[0028] (2) Preparation of thin film

[0029] Take an appropriate amount of the above slurry and apply it to form a film. The working area of ​​the film is 1cm 2 , the thickness is 8-10μm. After natural drying, put it into a muffle furnace, raise the temperature to 200°C for 15 minutes, 250°C for 15 minut...

Embodiment 2

[0033] Embodiment two and embodiment one step are the same, difference is: when preparing sol solution, titanium isopropoxide: ethylene glycol: glacial acetic acid molar ratio 1: 10: 20; When mixing with P25 type titanium dioxide particles to prepare slurry, The mass ratio of sol solution to P25 titanium dioxide is 3:1.

Embodiment 3

[0035] The steps of embodiment three are the same as those of embodiment one, except that: when preparing the sol solution, titanium isopropoxide: ethylene glycol: glacial acetic acid in a molar ratio of 1:20:20; when mixing with P25 type titanium dioxide particles to prepare slurry, The mass ratio of sol solution to P25 type titanium dioxide is 10:1.

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Abstract

The invention relates to a method for preparing a dye sensitization solar battery electrode at low temperature, which is on the basis of the advantages of anode material P25 type titanium dioxide particles that can be widely applied at present. Titanium dioxide sol which is specially made is added for improving the sizing agent preparation process, so that the defects of preparing the sizing agent by the P25 type titanium dioxide particles can be made up, the bridge connection action among the P25 particles can be enhanced, the transmission resistance of photoelectron in a film is reduced, a long-time high-temperature hydro-thermal reaction which wastes time and energy is avoided, and the light current of a battery is improved.

Description

Technical field: [0001] The invention belongs to the field of energy materials, in particular to a method for preparing dye-sensitized solar cell electrodes at low temperature. Background technique: [0002] Since the 1990s, dye-sensitized solar cells have attracted widespread attention from all walks of life, and their main features are environmental friendliness, low cost, and simple preparation equipment. However, low photoelectric conversion efficiency is still one of the main factors restricting its industrial production, and titanium dioxide thin film material is the core factor affecting the photoelectric performance of dye-sensitized solar cells. Therefore, whether to prepare high-performance anode materials has become a current industry research hotspot. [0003] Many research groups around the world are working on the research and development of new titanium dioxide slurry preparation technologies. For example, the current method used by Michael Gratzel's group is...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/04H01M14/00H01L51/48
CPCY02E10/542Y02E10/549
Inventor 王立新姜春华刘文秀
Owner IRICO
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