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Method for improving performances of dye sensitized solar cell

A solar cell and dye sensitization technology, which is applied in the field of improving the performance of dye-sensitized solar cells, can solve the problems of increasing the open circuit voltage, and the dye-sensitized solar cell has not yet been seen, and achieves the effect of improving the open circuit voltage.

Inactive Publication Date: 2012-01-11
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no relevant reports on the characteristics and methods of using temperature effects to treat dye-sensitized solar cells to increase their open circuit voltage.

Method used

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  • Method for improving performances of dye sensitized solar cell

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The specific steps of a method for improving the performance of dye-sensitized solar cells are:

[0019] 1) Preparation method of electrode material: 0.8 g of TiO 2 The powder is placed in a polytetrafluoroethylene conical container containing 150 milliliters of 10 mol / liter NaOH solution, and the container is placed in an oil bath at 80° C. for 5 days with magnetic stirring to obtain a white flocculent precipitate. Wash with 1 liter of HCl until neutral, and dry at 60°C for 5 hours to obtain titanium dioxide nanotubes;

[0020] 2) Assembly of dye-sensitized solar cells: prepare a slurry of titanium dioxide nanotubes and a binder, print it on a conductive glass by screen printing, bake it at 510°C for 3 hours, and use TiCl 4 treatment, roasting at 400°C for 40min, with a thickness of 20 microns, and then dipping it in organic dye D131 to seal it, placing it in a water bath at 40°C for 7 hours, and taking it out, the color of the electrode film changed from white to br...

Embodiment 2

[0023] The specific steps of a method for improving the performance of dye-sensitized solar cells are:

[0024] 1) The preparation method of the electrode material: 1.5 g of TiO 2 The powder is placed in a polytetrafluoroethylene conical container containing 210 milliliters of 10 mol / liter NaOH solution, and the container is placed in an oil bath at 120°C for 3 days with magnetic stirring to obtain a white flocculent precipitate. Wash with 1 liter of HCl until neutral, and dry at 80°C for 3 hours to obtain titanium dioxide nanotubes;

[0025] 2) Assembly of dye-sensitized solar cells: Prepare a slurry of titanium dioxide nanotubes and a binder, print it on a conductive glass by screen printing, bake it at 530°C for 1.5 hours, and use TiCl 4 treatment, roasting at 500°C for 20min, with a thickness of 25 microns, and then dipping it in organic dye D131 to seal it, placing it in a water bath at 60°C for 5 hours and taking it out, the color of the electrode film changed from whi...

Embodiment 3

[0028] The specific steps of a method for improving the performance of dye-sensitized solar cells are:

[0029] 1) Preparation method of electrode material: 1.0 g of TiO 2 The powder is placed in a polytetrafluoroethylene conical container containing 180 milliliters of 10 mol / liter NaOH solution, and the container is placed in an oil bath at 100°C for 4 days with magnetic stirring to obtain a white flocculent precipitate. Wash with 1 liter of HCl until neutral, and dry at 70°C for 4 hours to obtain titanium dioxide nanotubes;

[0030] 2) Assembly of dye-sensitized solar cells: prepare a slurry of titanium dioxide nanotubes and a binder, use screen printing, print it on a conductive glass, bake it at 520°C for 2 hours, and use TiCl 4 treatment, roasting at 450°C for 30min, with a thickness of 22 microns, and then dipping it in organic dye D131 to seal it, placing it in a water bath at 50°C for 6 hours, and taking it out, the color of the electrode film changed from white to b...

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Abstract

The invention relates to a method for improving performances of a dye sensitized solar cell. In the method, by temperature treatment for the sensitization process of organic dye for preparing a solar cell, open circuit voltage is increased and electrical properties are enhanced. The method is simple and easily operated and has low cost.

Description

technical field [0001] The invention specifically relates to a method for improving the performance of a dye-sensitized solar cell. Background technique [0002] Dye-sensitized solar cells (DSSC) use dyes as light-absorbing materials. The dye molecules in the excited state inject electrons into the conduction band of the semiconductor; the electrons diffuse to the conductive substrate and then flow into the external circuit; the dye molecules in the oxidized state are reduced. The electrolyte of titanium oxide is reduced and regenerated; the electrolyte of titanium oxide is reduced after the counter electrode accepts electrons, thus completing the DSSC cycle work. Since 1839, the French scientist Henri Becquerel first observed that copper oxide or silver halide coated on the metal electrode will produce photoelectric phenomenon; by 1991, the Swiss scientist The research group was the first to make breakthroughs in this field; to this day, it is still The photoelectric co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01M14/00H01L51/48
CPCY02E10/542Y02E10/549
Inventor 魏明灯庞爱英
Owner FUZHOU UNIV
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