Reuse and regeneration method of dye solution in dye-sensitized solar cell manufacturing process

A technology of solar cells and dye solutions, applied in photosensitive equipment, photovoltaic power generation, etc., can solve the problems of waste of dyes and solvents, high cost of dyes and dye solutions, etc.

Active Publication Date: 2018-10-30
江苏先进无机材料研究院
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Problems solved by technology

[0002] Currently in the fabrication process of dye-sensitized solar cells, TiO 2 The general method of dye soaking for the electrode is to use a newly prepared dye solution, and in order to ensure the use effect of the dye solution, the dye solution is generally not reused many times. It is well known that the cost of dye and dye solution is relatively high, so this manufacturing method is Will cause a lot of waste of dyes and solvents

Method used

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  • Reuse and regeneration method of dye solution in dye-sensitized solar cell manufacturing process
  • Reuse and regeneration method of dye solution in dye-sensitized solar cell manufacturing process
  • Reuse and regeneration method of dye solution in dye-sensitized solar cell manufacturing process

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Embodiment 1

[0040] Take 0.28g of Z991 (purity is 93%, provided by the Green Photoelectric Conversion Technology Project R&D Department of Shanghai Institute of Ceramics, Chinese Academy of Sciences) dissolved in a mixed solvent of acetonitrile and tert-butanol (1 / 1, volume ratio), fully stirred Let it dissolve completely. Then add 0.022g DPA (co-adsorbent) and stir to form a 1L homogeneous mixed solution containing Z9910.2mM and DPA0.1mM after completely dissolving.

[0041] TiO in dye-sensitized solar cells 2 After the electrodes were printed on the surface of FTO by screen printing, they were sintered at 500 °C, Til 4 After processing and continuing to sinter, soak in the dye solution as described above for 48 hours, remove and clean with acetonitrile for later use. In the battery assembly, carbon is used as the counter electrode, and the electrolyte solution composed of ionic liquid, iodine and solvent is used, and a complete dye-sensitized solar cell can be assembled by standard met...

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Abstract

The invention discloses a method for reusing and regenerating a dye solution in the dye-sensitized solar cell preparing process, and particularly relates to a method for regenerating the dye solution in situ in the dye-sensitized solar cell preparing process. The method comprises the steps that the change of solution concentration is analyzed through HPLC and / or an ultraviolet spectrophotometer; dye is added according to the change of the solution concentration, so that the dye solution is regenerated. Compared with the method that a traditional dye solution is used once, the method for reusing and regenerating the dye solution greatly improves the use ratio of the dye and the solvent and waste and loss of the dye and the solvent are greatly reduced.

Description

technical field [0001] The invention relates to a method for reusing and regenerating dye solution in the manufacturing process of dye-sensitized solar cells. technical background [0002] Currently in the fabrication process of dye-sensitized solar cells, TiO 2 The general method of dye soaking for the electrode is to use a newly prepared dye solution, and in order to ensure the use effect of the dye solution, the dye solution is generally not reused many times. It is well known that the cost of dye and dye solution is relatively high, so this manufacturing method is It will cause a lot of waste of dyes and solvents. [0003] Yet in the present invention, adopt HPLC synchronously to analyze the composition change of dye solution and ultraviolet spectrophotometer to confirm the concentration of dye solution synchronously, not only can judge whether to continue to use dye solution from the component and concentration of dye solution, also can be because of concentration It ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20
CPCY02E10/542
Inventor 杨星天杨松旺李勇明刘岩
Owner 江苏先进无机材料研究院
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