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Solar cell gel electrolyte and preparation method and application thereof

A gel electrolyte and solar cell technology, applied in the field of solar cells, can solve problems such as low cell efficiency, and achieve the effects of high cell efficiency, favorable migration, and resistance to leakage and combustion

Inactive Publication Date: 2010-12-01
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This electrolyte has the advantages of non-toxicity, environmental friendliness, and low price; in addition, the gel electrolyte of this series of histidine derivatives has excellent binding properties, which makes the platinum electrode adhere firmly and improves the fill factor of the battery. And form a solid electrolyte dye-sensitized nanocrystalline solar cell with good stability, but the cell efficiency is low, and the photoelectric conversion efficiency is 1.99%

Method used

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  • Solar cell gel electrolyte and preparation method and application thereof
  • Solar cell gel electrolyte and preparation method and application thereof
  • Solar cell gel electrolyte and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Preparation of G1-Br: see figure 1 , take 2.5 servings Add 1 part Stir at room temperature for two days, wash with ether three times to remove unreacted raw materials, and then remove the solvent. Add appropriate amount of hydrogen bromide and acetic acid, and react at 60°C for 6h, then remove the raw materials and solvent. Then dissolve with ethanol, add 2 parts After fully reacting at 60°C for 2 days, the ethanol was removed and dried in vacuum. That is the product G1-Br.

Embodiment 2

[0049] Preparation of G2-Br: see figure 2 , take 1 copy Added 4.5 servings Ethanol was used as the solvent, and stirred at 60°C for two days. After removing the ethanol, it was washed with ether three times to remove unreacted raw materials, and then the solvent was removed. Add an appropriate amount of hydrogen bromide and acetic acid, and react at 60°C for 8 hours, then remove the raw materials and solvent. Then dissolve with ethanol, add 2 parts After fully reacting at 60°C for 2 days, the ethanol was removed and dried in vacuum. That is the product G2-Br.

Embodiment 3

[0051] Preparation of G2-TFSI: see image 3 , Take 1 part of G1-Br, dissolve it in deionized water, add 1.2 parts of lithium bistrifluoromethanesulfonimide (LiTFSI), stir at room temperature for 12 hours, and remove the water. The product G2-TFSI was obtained.

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Abstract

The invention discloses a solar cell gel electrolyte and a preparation method and application thereof. In the invention, the gel electrolyte is prepared by adding novel dendritic ionic liquid into liquid electrolyte of non-polymeric ionic liquid, additive and iodine monomer, hermetically stirring the mixture for 1 to 20 hours at the temperature of between 50 and 140 DEG C and uniformly dissolving the novel dendritic ionic liquid. The gel electrolyte is dropwise added or injected into the space between a photoanode dye titanium dioxide membrane and a Pt electrode while the gel electrolyte is hot; the gel electrolyte is further heated and subjected to evacuation, so that the gel electrolyte is completely impregnated into the titanium dioxide membrane serving as a porous membrane; and the components are packaged to prepare a quasi-solid fully ionic liquid gel solar cell. The gel electrolyte prepared in the invention does not comprise conventional toxic solvents and thus has the advantages of ready availability, easy package and high stability and high efficiency of the cell. The cell has a few assembly processes and low cost. When a xenon lamp is utilized to simulate the sunshine at the room temperature environment, the measured maximum photoelectric conversion efficiency of the cell is 6.0 percent under the condition that the light intensity is 100mW / cm<2>.

Description

technical field [0001] The invention belongs to the field of solar cells, and in particular relates to a solar cell component and a preparation method thereof, in particular to a gel electrolyte of a dye-sensitized solar cell and a preparation method thereof. Background technique [0002] Electrolyte is the core component of solar cells, especially dye-sensitized solar cells. It mainly plays the role of transporting redox pairs, and its performance directly affects the efficiency of solar cells. [0003] Electrolytes for dye-sensitized solar cells exist in various forms such as liquid, gel, and solid (see: Dalton.Trans.2008, 2655-2666; Adv.Funct.Mater.2009, 19, 1-16; Adv.Funct.Mater .2007, 17, 2645-2652). Among them, liquid electrolytes mostly use organic solvents as electrolytes, such as acetonitrile and methoxypropionitrile. Such liquid electrolytes have the disadvantages of being volatile, difficult to package, poor stability, and high toxicity (see: Adv. Funct. Mater. ...

Claims

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Application Information

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IPC IPC(8): H01G9/022H01G9/20H01M14/00H01L51/48H01L51/44
CPCY02E10/549
Inventor 严锋赵杰邱丽华孙宝全
Owner SUZHOU UNIV
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