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Dye-sensitized solar cell comprising ion layer and method for manufacturing same

A solar cell and dye sensitization technology, applied in the field of dye-sensitized solar cells and their preparation, can solve the problems of reducing DSSC efficiency, unable to control the photoelectron recombination reaction, unable to generate photoelectrons, etc.

Inactive Publication Date: 2013-12-18
POSTECH ACAD IND FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, this method cannot control the photoelectron recombination reaction that occurs on the surface of metal oxides, so a solution that can improve this problem is needed
[0013] Moreover, the dye is adsorbed by forming carboxylate on the surface of titanium dioxide, and this chemical bond can be desorbed by water molecules in the electrolyte or nucleophilic molecules generated by the thermal decomposition of the electrolyte at high temperature, thereby dissolving into the electrolyte , and the dissolved dye cannot generate photoelectrons, so this is considered to be the main reason for reducing the efficiency of DSSC

Method used

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  • Dye-sensitized solar cell comprising ion layer and method for manufacturing same
  • Dye-sensitized solar cell comprising ion layer and method for manufacturing same
  • Dye-sensitized solar cell comprising ion layer and method for manufacturing same

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Embodiment 1

[0052] The titanium dioxide (dye) porous film-forming composition was coated on a transparent glass substrate coated with fluorine-doped indium tin oxide with a substrate resistance of 15Ω / □ by using a doctor blade film-forming method. After drying, heat treatment at 500° C. for 30 minutes to form a porous membrane containing titanium dioxide. The thickness of the porous membrane prepared at this time was about 6 μm. Afterwards, the first electrode forming the porous membrane was soaked in acetonitrile and tert-butanol (1:1 volume ratio) as solvent, and 0.30 mM ruthenium (4,4-dicarboxy-2,2'- Dipyridine) 2 (NCS) As a dye, 0.30 mM methacryloyl-4-aminobutyric acid (methacryloyl-4-aminobutyric acid) was soaked in a solution of a reactive compound for 18 hours to adsorb the dye on the porous membrane.

[0053] Platinum paste (dye) was coated on a transparent glass substrate coated with fluorine-doped indium tin oxide with a substrate resistance of 15Ω / □ by doctor blade film-formi...

Embodiment 2

[0056] In addition to using 0.8M 1-butyl-3-methylimidazolium iodine and 0.03M concentration of iodine and 0.2M 4-tert-butylpyridine in the solvent of methoxypropionitrile, the rest Steps are all the same as in Example 1.

Embodiment 3

[0058] Except that methacryloyl-4-aminolauric acid was used instead of methacryloyl-4-aminobutyric acid as the reactive compound, the rest of the steps were the same as in Example 1.

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Abstract

The present invention relates to a dye-sensitized solar cell and to a method for manufacturing same, and more specifically, provides a novel dye-sensitized solar cell for preventing photoelectron recombination due to a triiodide, and to a method for manufacturing same. The dye-sensitized solar cell, according to the present invention, comprises a metal oxide resulting from coadsorbing, on a surface of the dye-sensitized solar cell, a reactive compound which can react with iodine with a dye. The dye-sensitized solar cell is highly efficient by being able to prevent the photoelectron recombination due to the triiodide while using a small amount of the dye.

Description

technical field [0001] The present invention relates to a dye-sensitized solar cell and its preparation method, more specifically, it provides a novel dye-sensitized solar cell capable of preventing photoelectron recombination caused by triiodide and desorption of dyes and its preparation method . Background technique [0002] A solar cell device refers to a device that directly generates electricity by using a light-absorbing substance that generates electrons and holes under light irradiation. It is caused by the photovoltaic effect. In 1839, the French physicist Beequerel first discovered that the The induced chemical reaction produces the photovoltaic effect of electric current, a similar phenomenon was later found in solids such as selenium. [0003] In 1991, the Grache research team in Switzerland reported on the preparation of solar cells with a photoelectric conversion efficiency of 10% by chemically adsorbing ruthenium (phophyrine) dyes on titanium dioxide with a n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042H01L31/0224
CPCY02E10/542H01G9/2059H01G9/2013H01G9/2031Y02P70/50H10K85/344H10K2102/103H01L31/04H01L31/0224H01G9/2018H01G9/2027
Inventor 朴泰镐权永洙朴盛海任锺徹
Owner POSTECH ACAD IND FOUND
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