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Preparation method of ultraviolet curable electrolyte and its application in solar cells

A solar cell and electrolyte technology, applied in the field of solar cells, can solve the problems of electrolyte solution leakage, affecting the stability of solar cells, etc., and achieve the effects of improving use stability, good market development prospects, and saving time and resources.

Active Publication Date: 2018-02-16
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the technical problem of leakage and volatilization of the electrolyte solution of the dye-sensitized solar cell in the prior art, which seriously affects the stability of the solar cell

Method used

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  • Preparation method of ultraviolet curable electrolyte and its application in solar cells
  • Preparation method of ultraviolet curable electrolyte and its application in solar cells
  • Preparation method of ultraviolet curable electrolyte and its application in solar cells

Examples

Experimental program
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Embodiment 1

[0042] The preparation of embodiment 1 precursor

[0043] The preparation method of ultraviolet curing electrolyte precursor A is as follows: the following raw materials are calculated in parts by mass, 160 parts of 2-phenoxymethyl oxirane, 36 parts of acrylic acid, 5 parts of 1,2-(dimethylamino)acrylic acid Ethyl ester and 1 part of hydroquinone monomethyl ether were heated at 100°C for 5 hours, and then 2% benzoin butyl ether based on the total amount of all the above-mentioned raw materials was added to obtain a UV-curable electrolyte precursor.

Embodiment 2

[0045] 1) Preparation of dye sensitizer solution: weigh 40 mg of compound N719 (cis-bis(isothiocyanato)bis(2,2-bipyridyl-4,4-dicarboxylato)-ruthenium(II)bis-tetrabutylammonium, Provided by Solaronix), add solvent ethanol to the mark;

[0046]2) Cleaning of the substrate: The conductive substrate is ultrasonically cleaned with detergent, secondary water, acetone and ethanol in sequence, dried under hot air flow, and set aside.

[0047] 3) Fabrication of the counter electrode: Spin-coat a layer of chloroplatinic acid solution on the cleaned FTO conductive glass by spin-coating method, then place it in a muffle furnace, sinter at 400°C for 30 minutes, and take it out after cooling.

[0048] 4) Preparation of photoanode: Brush a layer of TiO on the FTO conductive glass by screen printing 2 Slurry, bake at 125°C for 10 minutes, after cooling, apply another layer, bake at 125°C for 10 minutes, coat three or four layers in total, then slowly heat up to 450°C for 15 minutes, then hea...

Embodiment 3

[0053] Prepare opposite electrode and battery with the method similar to embodiment 2, difference is: after printing TiO 2 Before the paste, spray a layer of TiO on the FTO conductive glass by spray pyrolysis 2 dense layer.

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Abstract

The invention discloses a preparation method of an ultraviolet curing electrolyte and its application in solar cells, belonging to the technical field of solar cells. The preparation method of the electrolyte is as follows: adding iodine, lithium iodide, urea, and 4-tert-butylpyridine (tBP) into the ultraviolet light-curable electrolyte precursor, and stirring evenly in a dark place. This kind of electrolyte can be cured and encapsulated only under the irradiation of ultraviolet lamps, which saves the step of hot pressing, makes the preparation steps of dye-sensitized solar cells more simplified, and the conditions are milder, which saves energy and avoids the liquid state. The volatilization and leakage of the electrolyte greatly improves the stability of the photoelectric device.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to a method for preparing an ultraviolet light curing electrolyte. Background technique [0002] With the depletion of mineral resources such as coal, oil and natural gas, energy crisis and environmental pollution have become serious problems that need to be solved urgently. How to effectively use renewable energy technology has become a major topic all over the world. Dye-sensitized solar cells (B.O'Regan, M. Nature, 1991, 353, 737-740), because of its simple manufacturing process, low cost, high photoelectric conversion efficiency and other advantages, it has potential practical value. [0003] Dye-sensitized solar cells (DSSCs) are usually composed of semiconductor oxide nanoporous membranes, dye sensitizers, redox electrolytes, and Pt electrodes. However, the traditional liquid redox electrolyte is volatile, easy to leak, and corrodes the counter electrode. For this reason...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/028
CPCY02E10/542
Inventor 武文俊徐梁王宇项怀德花建丽陈珏郑志伟李星田禾
Owner EAST CHINA UNIV OF SCI & TECH