Method for preparing counter electrode of dye-sensitized solar cell

A technology of solar cells and dye sensitization, applied in the field of solar cells, can solve problems such as inability to improve cell conversion efficiency, influence of electrode resistance, uneven loading of platinum, etc., achieve low cost, increase conversion efficiency, and increase specific surface area.

Inactive Publication Date: 2010-07-14
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the research needs of large-area batteries, the method currently used in the laboratory has shown great disadvantages, mainly in the preparation of platinum by spin coating and dropping platinum on the conductive glass. The process of loading platinum can not be uniform, and the specific surface area Smaller, so the surface resistance of the electrode is affected, it is not suitable for the development of industrialization and cannot improve the conversion efficiency of the battery

Method used

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  • Method for preparing counter electrode of dye-sensitized solar cell

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Effect test

Embodiment 1

[0018] Step 1: Weigh 3 grams of chloroplatinic acid, slowly pour it into a volumetric flask containing 100 grams of isopropanol, ultrasonically disperse it for 15 minutes, and then stir it with a magnet for 15 minutes, until there are no solid particles, disperse evenly and seal it for storage , that is, the solution A1 is prepared and set aside;

[0019] The second step: In a water bath at 80°C, slowly pour 10 grams of ethyl cellulose into a container containing 50 grams of terpineol, and stir thoroughly until translucent white particles appear, which is the carrier B1. spare;

[0020] Step 3: Mix 10 grams of the solution A1 obtained in the first step with 20 grams of the carrier B1 obtained in the second step, heat and stir in a water bath for 15 minutes, and configure it as a screen printing platinum slurry for later use;

[0021] Step 4: Take the FTO conductive glass, and clean it sequentially with deionized water containing detergent, acetone or ethanol, then rinse it wi...

Embodiment 2

[0025] Step 1: Weigh 0.2 grams of chloroplatinic acid, and slowly pour it into a volumetric flask containing 100 grams of isopropanol, ultrasonically disperse it for 15 minutes, and then carry out magnetic stirring for 15 minutes until there are no solid particles and the dispersion is uniform Afterwards, it was sealed and stored, and the solution A2 was prepared immediately.

[0026] Step 2: Weigh 10 grams of ethyl cellulose and slowly pour it into a container containing 150 grams of terpineol, and stir it fully in a water bath at 80°C until it appears translucent without white particles, which is the carrier B2 ;

[0027] Step 3: Mix 10 grams of the solution A2 obtained in the first step with 40 grams of the carrier B2 obtained in the second step, heat and stir for 15 minutes, and configure it into a platinum slurry for screen printing;

[0028] Step 4: Take the FTO conductive glass, and clean it sequentially with deionized water containing detergent, acetone or ethanol, th...

Embodiment 3

[0032] Step 1: Weigh 1 gram of chloroplatinic acid, and slowly pour it into a volumetric flask containing 100 grams of isopropanol, ultrasonically disperse it for 15 minutes, and then stir it with a magnet for 15 minutes until there are no solid particles and the dispersion is uniform Afterwards, it was sealed and stored, and the solution A3 was prepared immediately.

[0033] Step 2: Weigh 10 grams of ethyl cellulose and slowly pour it into a container containing 100 grams of terpineol, and stir it fully in a water bath at 80°C until it appears translucent without white particles, which is the carrier B3 ;

[0034] Step 3: Mix 10 grams of the solution A3 obtained in the first step with 30 grams of the carrier B3 obtained in the second step, heat and stir for 15 minutes, and configure it into a platinum slurry for screen printing;

[0035] Step 4: Take the FTO conductive glass, and clean it with deionized water containing detergent, acetone or ethanol in sequence, rinse it wit...

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Abstract

The invention discloses a method for preparing a counter electrode of a dye-sensitized solar cell, which comprises the following steps of: (1) weighing chloroplatinic acid and isopropanol, and fully mixing the chloroplatinic acid and the isopropanol to prepare solution A; (2) weighing ethyl cellulose and terpineol, and fully mixing the ethyl cellulose and the terpineol to prepare solution B; (3) mixing and stirring the solution A and the solution B to prepare a platinum sizing material for screen printing; (4) taking a piece of conductive glass, printing the platinum sizing material on the conductive glass through screen printing, and dying and sintering the conductive glass to obtain an initial platinum electrode; and (5) soaking the initial platinum electrode in aqueous solution of TiCl4, taking the initial platinum electrode out of the aqueous solution of TiCl4, washing the initial platinum electrode, raising the temperature in a muffle furnace to between 400 and 550 DEG C and keeping the temperature for 20 to 60 minutes to prepare the needed counter electrode. Because the counter electrode prepared by the method has a large specific area, and the conversion efficiency of the cell is high, the method is favorable for industrialized development.

Description

【Technical field】 [0001] The invention relates to a solar cell, in particular to a method for preparing a counter electrode of a dye-sensitized solar cell. 【Background technique】 [0002] Since entering the 21st century, energy and environmental issues facing mankind have become increasingly prominent. On the one hand, there is a huge demand for energy from economic development; on the other hand, the traditional fossil energy such as coal, oil, and natural gas, which have been accumulated for hundreds of millions of years, has been irreversibly exhausted after hundreds of years of huge consumption, and the development and utilization of traditional fossil energy The process will cause serious harm to the ecological environment. Therefore, these two practical issues have become the focus of attention in recent years. [0003] Solar energy is the green renewable energy with the most widespread distribution and the largest amount of resources on the earth. Compared with othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/48
CPCH01G9/2059Y02E10/542H01G9/2022H01G9/2031
Inventor 杨志军
Owner IRICO
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