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New electrolyte for nano-crystalline solar cell

A solar cell and electrolyte technology, applied in electrolytic capacitors, circuits, capacitors, etc., can solve the problems of low utilization of sunlight and limit the light conversion efficiency of cells, and achieve the effect of improving the utilization rate and improving the photoelectric conversion efficiency.

Inactive Publication Date: 2013-04-03
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the conversion rate of dye-sensitized solar cells cannot be compared with the efficiency of crystalline silicon cells. The main reason is that due to the low utilization of sunlight by the cells, the dyes used in the cells can only absorb part of the sunlight, and the other part cannot absorb the wavelength band. Light will be transmitted through the cell, limiting the light conversion efficiency of the cell

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] According to the molar concentration ratio of each component, weigh 0.0508g of iodine element, 0.1606g of lithium iodide, 0.4258g of DMPII, 0.3244g of TBP, and 0.0472g of GuSCN into 4ml of acetonitrile solution, fully dissolve to form a liquid electrolyte. Weigh samarium TPTZ complex 2.08×10 -5 g, added to the liquid electrolyte, fully dissolved, and prepared as a new liquid electrolyte of 0.0005%. The electrolyte is used to assemble a nanocrystalline solar cell, the dye is a ruthenium complex N3 dye, and the photoanode is a nano titanium dioxide (P25) film. At room temperature, use a xenon lamp to simulate sunlight, the intensity is 500W, and the effective light receiving area of ​​the battery is 0.25cm 2 , the calculated photoelectric conversion efficiency of the battery is 5.14%.

Embodiment 2

[0017] According to the molar concentration ratio of each component, weigh 0.0508g of iodine element, 0.1606g of lithium iodide, 0.4258g of DMPII, 0.3244g of TBP, and 0.0472g of GuSCN into 4ml of acetonitrile solution, fully dissolve, and fully dissolve to form a liquid electrolyte. Weigh samarium TPTZ complex 20.8×10 -5 g, added to the liquid electrolyte to prepare a 0.005% new liquid electrolyte. The electrolyte is used to assemble a nanocrystalline solar cell, the dye is a ruthenium complex N3 dye, and the photoanode is a nano titanium dioxide (P25) film. At room temperature, use a xenon lamp to simulate sunlight, the intensity is 500W, and the effective light receiving area of ​​the battery is 0.25cm 2 , the calculated photoelectric conversion efficiency of the battery is 6.07%.

Embodiment 3

[0019] According to the molar concentration ratio of each component, weigh 0.0508g of iodine element, 0.1606g of lithium iodide, 0.4258g of DMPII, 0.3244g of TBP, and 0.0472g of GuSCN into 4ml of acetonitrile solution, fully dissolve, and fully dissolve to form a liquid electrolyte. Weigh samarium fluorescein sodium complex 2.08×10 -5 g, added to the liquid electrolyte to prepare a 0.0005% new liquid electrolyte. The electrolyte is used to assemble a nanocrystalline solar cell, the dye is a ruthenium complex N3 dye, and the photoanode is a nano titanium dioxide (P25) film. At room temperature, use a xenon lamp to simulate sunlight, the intensity is 500W, and the effective light receiving area of ​​the battery is 0.25cm 2 , the calculated photoelectric conversion efficiency of the battery is 4.58%.

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Abstract

The invention relates to new electrolyte for a nano-crystalline solar cell. The new electrolyte for the nano-crystalline solar cell is characterized in that the new electrolyte for the nano-crystalline solar cell comprises from 0.0005 to 0.0050% by weight of fluorescent dyes and the balance liquid electrolyte. The new electrolyte for the nano-crystalline solar cell has the advantages of performing frequency modulation on photons with unmatched energy in the solar spectrum through a conversion role of the fluorescent dyes to enable the electrolyte to be absorbed easily by solar cell dyes which are generally provided with higher photoelectric conversion efficiency and consequently achieving the effect of improving the photoelectric conversion efficiency of the nano-crystalline solar cell; improving the utilization efficiency of the sunlight by utilizing the fluorescent dyes to absorb the sunlight of wave bonds which is not absorbed by the solar cell dyes and consequently achieving the effect of improving the photoelectric conversion efficiency of the nano-crystalline solar cell.

Description

technical field [0001] The present invention relates to a novel electrolyte for nanocrystalline solar cells. Background technique [0002] New energy is one of the five most decisive technological fields in the world economic development in the 21st century. Solar energy is a clean, efficient and inexhaustible energy source, and it is the most realistic for human beings to study and utilize solar energy. In 1991, the Institute of Technology in Lausanne, Switzerland The professor published an article on "Nature" about the nanocrystalline solar cell (Dye Sensitized Solar Cell, DSSC for short) with a photoelectric conversion efficiency greater than 7% at a lower cost, which provides a new way for the utilization of solar energy. The biggest advantage of this battery is that its cost is only 1 / 10 of that of traditional silicon solar cells. Through the improvement of the dye sensitizer, a dye called black dye is used to make the total photoelectric conversion efficiency of thi...

Claims

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Application Information

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IPC IPC(8): H01G9/035H01G9/20
Inventor 张辉
Owner IRICO