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Electrode doped with nano-gold for dye-sensitized solar cell and preparation method thereof

A solar cell and dye sensitization technology, applied in the field of electrodes and their preparation, can solve problems such as difficult large-scale application, increased interface resistance, and electronic difficulties, so as to improve light absorption efficiency, enhance electromagnetic field strength, and reduce large interface The effect of resistance

Inactive Publication Date: 2017-03-15
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the adsorption of double-layer dyes on the surface of titanium dioxide can increase the light absorption rate, it is difficult to effectively inject electrons into titanium dioxide due to the increase in interface resistance. Difficult to promote and apply on a large scale

Method used

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Effect test

Embodiment 1

[0032] The preparation method of the electrode doped with nano gold for dye-sensitized solar cells adopts the following steps:

[0033] (1) The FTO conductive glass was cut into 1cm×4cm slides, soaked in piranha solution (3:1H2SO4:30%H2O2) for 24 hours and then washed with deionized water.

[0034] (2) Concentration is 1000ml of the chloroauric acid aqueous solution of 0.01%wt, boils under magnetic stirring heating, and adds the sodium citrate 10~100ml of concentration 1%wt rapidly, reacts and breaks away from heat source after 1~20 minutes. A nano-gold solution is prepared. After the solution is cooled, add 20 ml of triethoxysilane (APTES) aqueous solution with a concentration of 1.71 μM dropwise to the solution, stir vigorously for 40 minutes, add 40 ml of 0.54% wt sodium silicate aqueous solution, continue to stir for 12 minutes, and let stand Three days later, a solution of gold nanoparticles coated with silicon dioxide was obtained, and the pH value was adjusted to 10-11...

Embodiment 2

[0045] The preparation method of the electrode doped with nano gold for dye-sensitized solar cells adopts the following steps:

[0046] (1) The FTO conductive glass was cut into 1cm×4cm slides, soaked in piranha solution (3:1H2SO4:30%H2O2) for 24 hours and then washed with deionized water.

[0047] (2) Concentration is 1000ml of the chloroauric acid aqueous solution of 0.01%wt, boils under magnetic stirring heating, and adds the sodium citrate 10~100ml of concentration 1%wt rapidly, reacts and breaks away from heat source after 1~20 minutes. A nano-gold solution is prepared. After the solution is cooled, add 20 ml of triethoxysilane (APTES) aqueous solution with a concentration of 1.71 μM dropwise to the solution, stir vigorously for 40 minutes, add 40 ml of 0.54% wt sodium silicate aqueous solution, continue to stir for 12 minutes, and let stand Three days later, a solution of gold nanoparticles coated with silicon dioxide was obtained, and the pH value was adjusted to 10-11...

Embodiment 3

[0057] The preparation method of the electrode doped with nano gold for dye-sensitized solar cells adopts the following steps:

[0058] (1) The FTO conductive glass was cut into 1cm×4cm slides, soaked in piranha solution (3:1H2SO4:30%H2O2) for 24 hours and then washed with deionized water.

[0059] (2) Concentration is 1000ml of the chloroauric acid aqueous solution of 0.01%wt, boils under magnetic stirring heating, and adds the sodium citrate 10~100ml of concentration 1%wt rapidly, reacts and breaks away from heat source after 1~20 minutes. A nano-gold solution is prepared. After the solution is cooled, add 20 ml of triethoxysilane (APTES) aqueous solution with a concentration of 1.71 μM dropwise to the solution, stir vigorously for 40 minutes, add 40 ml of 0.54% wt sodium silicate aqueous solution, continue to stir for 12 minutes, and let stand Three days later, a solution of gold nanoparticles coated with silicon dioxide was obtained, and the pH value was adjusted to 10-11...

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Abstract

The invention relates to an electrode used for a dye-sensitized solar cell and doped with nanogold and a manufacturing method thereof. The electrode comprises a substrate, wherein a titanium dioxide film evenly doped with nanogold particles is attached to the substrate, the lower layer of the electrode is of a flat panel structure, the upper layer of the electrode is provided with cycle-shaped gaps, conductive glass is evenly coated with titanium dioxide grout with nanogold particles and wrapped with silicon dioxide, and the electrode is obtained after sintering. Small polystyrene balls are evenly deposited on the electrode to form a cycle structure, a titanium dioxide precursor mixed with nanogold solutions is injected, polystyrene is removed through sintering, the titanium dioxide film of the cycle structure is obtained to form a double-layer electrode, ultimately, the electrode is soaked in two different kinds of dye for sensitization, and the dye solar cell double-dye-sensitization electrode doped with the nanogold and of a double-layer structure is obtained. The electrode is used in the dye-sensitized solar cell, the absorption rate of the cell for visible light can be substantially improved, and the photoelectric conversion efficiency of the cell is improved.

Description

technical field [0001] The invention relates to an electrode and a preparation method thereof, in particular to an electrode doped with nano gold for a dye-sensitized solar cell and a preparation method thereof. Background technique [0002] Under the background of environmental crisis and energy crisis, solar energy, as a promising energy source, has been widely promoted in the world, and it is very promising to replace the fossil energy that is widely used today. Monocrystalline silicon, polycrystalline silicon, and thin-film solar cells have begun mass production. And by M. The dye-sensitized solar cells (Dye Sensitized Solar Cells, DSSC) developed by the professor's research group are unique because of their abundant and cheap raw materials and simple manufacturing methods. In dye-sensitized cells, the working electrode is usually made of titanium dioxide microcrystals, and dyes such as bipyridyl complexes function to absorb light and excite electrons, adsorb on the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/042
CPCY02E10/542Y02P70/50
Inventor 胡晓斌李浩然
Owner SHANGHAI JIAOTONG UNIV
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