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Dye-sensitized solar cell counter electrode and production method thereof

A technology of solar cells and dye sensitization, applied in the field of solar cells, can solve problems such as poor electronic capabilities, and achieve the effects of good stability, simple operation, and low cost

Inactive Publication Date: 2015-07-01
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a single graphitized carbon is very conductive, its electron donating ability is relatively poor, so that it cannot be a good electrode material

Method used

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  • Dye-sensitized solar cell counter electrode and production method thereof
  • Dye-sensitized solar cell counter electrode and production method thereof
  • Dye-sensitized solar cell counter electrode and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Dissolve 1.3122g 2-methylimidazole in 30ml methanol respectively, 1.1641g Co(NO 3 ) 2 ·6H 2 O was dissolved in 30ml of methanol, where Co(NO 3 ) 2 ·6H 2 The molar ratio of O to 2-methylimidazole is 1:4. After stirring for about 30 minutes at room temperature, the two solutions are uniformly mixed, then stirred for about 30 minutes, centrifuged, and the obtained product is washed 2 to 3 times by centrifugal method with absolute ethanol. Then vacuum-dry at 40°C for about 12 hours to obtain purple powder ZIF-67 (the characterization diagram of ZIF-67 is shown in the attached figure 1 and figure 2 shown);

[0031] (2) Put the synthesized purple powder ZIF-67 into a tube furnace and roast at 650°C for 2h under nitrogen atmosphere, and then drop to room temperature;

[0032] (3) Dissolve the product obtained in step (2) in isopropanol (analytically pure, the dosage is 4ml of isopropanol for every 200 mg of product), ball mill for about 6-8 hours, and spray on the...

Embodiment 2

[0034] The conditions and steps are the same as in Example 1, except that the calcination temperature in step (2) is 750°C.

Embodiment 3

[0036] The conditions and steps are the same as in Example 1, except that the calcination temperature in step (2) is 850°C. Wherein, the energy spectrum of the product obtained in step (2) is as attached image 3 shown.

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Abstract

The invention discloses a dye-sensitized solar cell counter electrode and a production method thereof. The production method thereof includes 1, dissolving cobalt nitrate hexahydrate and 2-methylimidazole with methyl alcohol, then mixing and stirring methanol solutions of the cobalt nitrate hexahydrate and 2-methylimidazole for 20-40 minutes before centrifuging the same, and obtaining ZIF (zeolite imidazole ester skeleton structure structure)-67 by separating, washing and drying the mixture; 2, roasting the ZIF-67 for 2 hs under 600-850 DEG C in the inert gas atmosphere; 3, dissolving the mixture obtained from the step 2 with isopropanol before subjecting the same to ball grinding for 6-8 hs to obtain particulate matters, and spraying and drying the particulate matters on the surface of FTO (fluorine-doped tin oxide) conductive glass. The production method thereof is easy to operate and low in cost, and the dye-sensitized solar cell is high in photoelectric converting efficiency.

Description

technical field [0001] The invention relates to a solar cell, in particular to a counter electrode of a dye-sensitized solar cell and a preparation method thereof. Background technique [0002] The electrode material of the counter electrode of the dye-sensitized solar cell is usually noble metal platinum, but its disadvantage is that the use of noble metal platinum has many problems, such as: expensive, and there is little stock on the earth, which is not conducive to commercialization. Therefore, in recent years, many researchers have been working on various carbon materials as substitutes for platinum. As an electrode material, it must not only have good conductivity, but also have a certain ability to donate electrons. Although graphitized carbon alone is very conductive, its electron-donating ability is relatively poor, so that it cannot be a good electrode material. Contents of the invention [0003] One of the technical problems solved by the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042H01G9/20
CPCY02E10/542Y02P70/50
Inventor 郝策冯明巧景洪宇任素贞史彦涛郝娟媛
Owner DALIAN UNIV OF TECH
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