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Ester phosphate electrolysis solvent for dye sensitization solar battery

A technology of solar cells and dye sensitization, which is applied in the application field of organic matter in photoelectric conversion technology, can solve the problems of easy volatilization and low boiling point, and achieve the effect of low freezing point, high boiling point and non-volatile effect

Inactive Publication Date: 2008-05-28
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of traditional organic solvents such as low boiling point and easy volatility, thereby providing a high boiling point phosphate derivative to replace traditional organic solvents, forming a non-volatile electrolyte to stabilize battery efficiency and prolong battery life.

Method used

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  • Ester phosphate electrolysis solvent for dye sensitization solar battery
  • Ester phosphate electrolysis solvent for dye sensitization solar battery
  • Ester phosphate electrolysis solvent for dye sensitization solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]

[0027] Preparation of electrolyte solution: Use the compound shown in the figure as the electrolyte solvent, add electrolyte 0.01M 1,2 dimethyl-3-propyl imidazolium iodide salt, 0.01M LiI, 0.04M I 2 . Shake in ultrasonic at room temperature to mix well.

[0028] Preparation of the battery: Then, the titanium dioxide slurry is coated on the treated conductive glass, and after high-temperature treatment, it is immersed in the dye for 14-24 hours of adsorption to form the working electrode of the battery. A dye-sensitized solar cell is prepared by encapsulating the configured electrolyte solution between the working electrode and the platinum-coated counter electrode through a sealant.

[0029] Battery performance test: Lead wires from the working electrode and the counter electrode of the battery respectively, and connect them to the battery performance test device. The working area of ​​the battery passes through a hole with an area of ​​0.159cm 2 The clapboard is...

Embodiment 2

[0031]

[0032] Preparation of electrolyte solution: Use the compound shown in the figure as the electrolyte solvent, add electrolyte 0.01M 1-methyl-3-butylimidazolium iodide salt, 0.01M NaI, 1M I 2 , 5M 4-tert-butylpyridine. Stir at 50°C to make it evenly mixed.

[0033] Preparation of the battery: Then apply the titanium dioxide slurry on the treated conductive glass, and immerse the dye N after high temperature treatment 3 Adsorbed in medium for 14-24 hours to form the working electrode of the battery. A dye-sensitized solar cell is prepared by encapsulating the configured electrolyte solution between the working electrode and the platinum-coated counter electrode through a sealant.

[0034] Battery performance test: Lead wires from the working electrode and the counter electrode of the battery respectively, and connect them to the battery performance test device. The working area of ​​the battery passes through a hole with an area of ​​0.159cm 2 The clapboard is dete...

Embodiment 3

[0036]

[0037] Preparation of electrolyte solution: Use the compound shown in the figure as the electrolyte solvent, add electrolyte 0.01M 1-methyl-3-propyl imidazolium iodide salt, 0.01M kI, 0.2M I 2 , 5M crown ether. Stir at room temperature to mix well.

[0038] Preparation of the battery: Then apply the titanium dioxide slurry on the treated conductive glass, immerse in the dye N719 after high temperature treatment and absorb for 14-24 hours to form the working electrode of the battery. A dye-sensitized solar cell is prepared by encapsulating the configured electrolyte solution between the working electrode and the platinum-coated counter electrode through a sealant.

[0039]Battery performance test: Lead wires from the working electrode and the counter electrode of the battery respectively, and connect them to the battery performance test device. The working area of ​​the battery passes through a hole with an area of ​​0.159cm 2 The clapboard is determined, using a ...

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Abstract

The invention relates to an application for using phosphoric acid ester compounds in a dye-sensitized solar cell as electrolyte solvent. The phosphoric acid ester compounds has the chemical structural general formula that R1R2 is alkyl and cyano of HC1-12 or alkyl of C1-12 which is replaced by the cyano. R3 is the alkyl of C1-12 or the alkyl of C1-12 replaced by the cyano, and n is equal to 0-12. The application methods of the compounds in the dye-sensitized solar cell are that the compounds dissolve electrolytes to form the electrolytic solvent, and the cell performance is tested after the electrolytic solution is assembled into the cell. The electrolyte solvent provided by the invention has the advantages of high boiling point, wide applied temperature range and difficult volatilization, and increases the service life of the cell; the electrolyte solvent has low viscosity coefficient, satisfaction of dissolution and disassociation of inorganic salts in the solvent, and has high stability to heat, light, chemical agents, etc., cheap raw materials, convenience of synthesis, and benefits for the production and the actual application of the cell.

Description

technical field [0001] The invention belongs to the application field of organic matter in photoelectric conversion technology, and specifically relates to the application of a class of phosphoric acid ester compounds as electrolyte solvents in dye-sensitized solar cells. Background technique [0002] In 1991, Professor M.Grtzel from Switzerland first proposed dye-sensitized nanocrystalline solar cells. Its structure is to sinter a layer of nanoporous TiO on a conductive glass substrate 2 film, and adsorb a layer of photosensitive dye on it as a photoanode, and the cathode is composed of Pt-coated conductive glass, I 3 - / I - The redox pair exists between the cathode and the anode as the electrolyte or uses a solid electrolyte to replace I 3 - / I - redox pair. This type of battery has become a type of photoelectric conversion device with application prospects due to its advantages such as simple preparation process, low production cost, and excellent photoelectric co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/02H01L31/18H01L51/46H01L51/48H01G9/022H01G9/20H01M10/40H01M14/00C07F9/09
CPCY02E10/542Y02E60/122Y02E10/549Y02P70/50
Inventor 杨希川李林孙立成
Owner DALIAN UNIV OF TECH
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