Chemical method for preparing dye-sensitized solar cell slurry

A technology for solar cells and dye sensitization, applied in the field of preparation of dye-sensitized solar cell paste, can solve the problems of low output of P25 type titanium dioxide, complicated process of terpineol-based paste, easy introduction of impurities, etc. Large-scale industrial production, the realization of large-scale industrial production, the effect of simple process

Inactive Publication Date: 2015-04-22
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of low output, long time and incomplete physical grinding and dispersing of P25 type titanium dioxide, and the easy introduction of impurities, and the complicated process of prepar

Method used

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  • Chemical method for preparing dye-sensitized solar cell slurry
  • Chemical method for preparing dye-sensitized solar cell slurry
  • Chemical method for preparing dye-sensitized solar cell slurry

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specific Embodiment approach 1

[0019] Specific implementation mode 1: In this implementation mode, dye-sensitized solar cell slurry is prepared according to the following steps:

[0020] 1. Weigh 10g of P25 powder, disperse it into 40ml of deionized water, add 2.5ml of glacial acetic acid (analytical purity 99.5 wt.%), and stir evenly;

[0021] 2. After sealing the mixed solution with plastic wrap, put it in a constant temperature box to raise the temperature to 90°C and keep it warm for 12 hours;

[0022] 3. Put the reacted mixed solution into a drying oven and dry at a constant temperature of 60°C;

[0023] 4. Weigh 0.5g of the modified powder, disperse it into 0.6ml of deionized water, and ultrasonicate for 5min;

[0024] 5. Slowly add 2ml of alcohol solution containing 0.1wt.% hydrochloric acid to make the titanium dioxide colloid into a viscous colloid;

[0025] 6. Use the screen printing method to coat a layer of slurry on the cleaned conductive glass, tear off the tape after natural drying, put it in

specific Embodiment approach 2

[0032] Specific implementation mode 2: In this implementation mode, dye-sensitized solar cell slurry is prepared according to the following steps:

[0033] 1. Weigh 10g of P25 powder, disperse it into 40ml of ethanol (analytical pure), add 2.5ml of glacial acetic acid (analytical pure 99.5 wt.%), and stir evenly;

[0034] 2. After sealing the mixed solution with plastic wrap, put it in a constant temperature box to raise the temperature to 80°C and keep it warm for 12 hours;

[0035] 3. Put the reacted mixed solution into a drying oven and dry at a constant temperature of 60°C;

[0036] 4. Weigh 0.5g of the modified powder, disperse it into 0.6ml of deionized water, and ultrasonicate for 5 minutes;

[0037] 5. Slowly add 2ml of alcohol solution containing 0.1wt.% hydrochloric acid to make the titanium dioxide colloid into a viscous colloid;

[0038] 6. Use the screen printing method to coat a layer of slurry on the cleaned conductive glass, tear off the tape after natural d

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Abstract

A chemical method for preparing dye-sensitized solar cell slurry relates to a method for preparing dye-sensitized solar cell slurry. The method comprises the following steps: (1) dispersing P25 titanium dioxide into water or ethyl alcohol, and adding glacial acetic acid as the surface modifying agent of titanium dioxide; (2) heating the mixed solution obtained from step (1) to 80-90 DEG C and keeping the mixed solution at the temperature for 10-24h; (3) drying the mixture obtained from step (2) in a vacuum drying box to obtain surface-modified powder; and (4) dispersing the powder obtained from step (3) into aqueous solution under ultrasonic waves, and adding ethyl alcohol solution containing 0.05-0.2wt% of hydrochloric acid to prepare thick titanium dioxide slurry. The method of the invention is simple and practical. The P25 powder is low in cost, an electrode prepared with the slurry is transparent, the whole process has a short period, the process is simple, and large-scale industrial production is easy to realize.

Description

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Claims

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Application Information

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Owner HARBIN INST OF TECH
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