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Dye-sensitized solar cell and manufacture method thereof

A technology of solar cells and dye sensitization, applied in the field of new energy, can solve the problem of low photoelectric conversion efficiency of dye-sensitized solar cells, etc., and achieve the effects of enhancing photoelectric conversion efficiency, enhancing lifespan, and enhancing absorption

Active Publication Date: 2013-06-12
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For a long time, the relatively low photoelectric conversion efficiency has been the main bottleneck in the development of dye-sensitized solar cells

Method used

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  • Dye-sensitized solar cell and manufacture method thereof
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  • Dye-sensitized solar cell and manufacture method thereof

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Embodiment 1

[0057] In this embodiment, a gold-silver alloy is used as the core, and the outer layer is wrapped with silver oxide core-shell structure nanoparticles (Au-Ag / Ag 2 O core-shell nanoparticles), and prepared by titration spin coating method containing Au-Ag / Ag 2 Dye-sensitized solar cells based on O core-shell nanoparticles.

[0058] First, prepare Au-Ag / Ag 2 O core-shell structure nanoparticles, its preparation method is as follows:

[0059] 1. Put 10 -4 mol / L chloroauric acid solution 100ml, 10 -4 mol / L silver nitrate solution 100ml, with 4*10 -2 Mix 2ml of mol / L sodium citrate solution, stir at a constant temperature of 95 degrees Celsius at a frequency of 500 rpm, and fully react for 6-7 minutes;

[0060] 2. Add 4*10 to the above solution -2 mol / L sodium citrate solution 8ml;

[0061] 3. Stir at a constant temperature of 100 degrees Celsius at a frequency of 500 rpm, fully react for 20-25 minutes, and then cool naturally to room temperature while maintaining stirring....

Embodiment 2

[0072] In this embodiment, a gold-platinum alloy is used as the core, and the core-shell structure nanoparticle (Au-Pt / Ag 2 O core-shell nanoparticles), and prepared by titration spin coating method containing Au-Pt / Ag 2 Dye-sensitized solar cells based on O core-shell nanoparticles.

[0073] First, prepare Au-Pt / Ag 2 O core-shell structure nanoparticles, its preparation method is as follows:

[0074] 1. Put 10 -4 mol / L chloroauric acid solution 100ml, 10 -4 mol / L chloroplatinic acid solution 100ml, with 4*10 -2 Mix 2ml of mol / L sodium citrate solution, stir at a constant temperature of 95 degrees Celsius at a frequency of 500 rpm, and fully react for 6-7 minutes;

[0075] 2. Add 4*10 to the above solution -2 mol / L sodium citrate solution 8ml and 10 -4 mol / L silver nitrate solution 20ml;

[0076] 3. Stir at a constant temperature of 100 degrees Celsius at a frequency of 500 rpm, fully react for 20-25 minutes, and then cool naturally to room temperature while maintainin...

Embodiment 3

[0086] In this embodiment, silver-platinum alloy is used as the core, and the outer layer is wrapped with silver oxide core-shell structure nanoparticles (Ag-Pt / Ag 2 O core-shell nanoparticles), and prepared by titration spin coating method containing Ag-Pt / Ag 2 Dye-sensitized solar cells based on O core-shell nanoparticles.

[0087] First, prepare Ag-Pt / Ag 2 O core-shell structure nanoparticles, its preparation method is as follows:

[0088] 1. Put 10 -4 mol / L silver nitrate solution 100ml, 10 -4 mol / L chloroplatinic acid solution 100ml, with 4*10 -2 Mix 2ml of mol / L sodium citrate solution, stir at a constant temperature of 95 degrees Celsius at a frequency of 500 rpm, and fully react for 6-7 minutes;

[0089] 2. Add 4*10 to the above solution -2 mol / L sodium citrate solution 8ml;

[0090] 3. Stir at a constant temperature of 100 degrees Celsius at a frequency of 500 rpm, fully react for 20-25 minutes, and then cool naturally to room temperature while maintaining stir...

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Abstract

The invention relates to the technical field of new energy and discloses a dye-sensitized solar cell. The dye-sensitized solar cell comprises a transparent electrode, a counter electrode, and an electrolyte layer located between the transparent electrode and the counter electrode, wherein a nanometer porous semiconductor film is arranged on the inner side of the transparent electrode, a transparent substrate is arranged on the outer side of the transparent electrode, a counter transparent substrate is arranged on the outer side of the counter electrode, the electrolyte layer comprises mixture liquid of electrolyte and a dye sensitizer, and core-shell structured nano-particles with a surface plasma effect are adsorbed in the nanometer porous semiconductor film. According to the dye-sensitized solar cell containing the nano-particles, provided by the invention, the absorption spectrum is broadened, the light absorption efficiency is improved, and the photoelectric conversion efficiency of the cell is enhanced. The invention further provides a manufacture method of the dye-sensitized solar cell.

Description

technical field [0001] The present invention relates to the field of new energy technologies, in particular to a solar cell and a preparation method thereof, more specifically, to a dye-sensitized solar cell with nanoparticles having a surface plasmon effect and a preparation method thereof. Background technique [0002] With the rapid development of human industrial civilization, fossil fuels are increasingly depleted, and the greenhouse effect brought about by the use of fossil fuels is becoming more and more serious. The development of new energy sources with environmental protection value has become an urgent matter. Solar energy has become a research object favored by scientists from all over the world due to its inexhaustible, inexhaustible, non-polluting, and unrestricted by geographical environment and other advantages. At present, many scientists are devoting themselves to the development of solar cells of various materials, which can be applied to various electrica...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/14
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 刘仿许骐黄翊东
Owner TSINGHUA UNIV
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