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Photo-anode of dye-sensitized solar cell with biomimetic structure and preparation method thereof

A technology for solar cells and dye sensitization, which is applied in the field of photoanode of dye-sensitized solar cells and its preparation, can solve the problems of difficult fabrication of photonic crystals, no proofs, difficult structure control, etc., and achieves good light capture performance and simple method. Easy, structured and controllable effects

Inactive Publication Date: 2009-12-02
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technique does not demonstrate whether having an opal photonic crystal structure is a key parameter for improving the light absorption performance of dye-sensitized solar cells
More importantly, the self-assembly method of colloidal spheres used in this technology, because the assembly process is carried out in suspension, makes the structure difficult to control, and the production of photonic crystals is very difficult.

Method used

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  • Photo-anode of dye-sensitized solar cell with biomimetic structure and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The first step is to ultrasonically treat the FTO glass in deionized water for 5 minutes, then ultrasonically treat it in an organic mixed solution for 3 minutes to make the surface hydroxylated, and finally clean it by ultrasonically treating it in deionized water for 10 minutes.

[0034] The organic mixed solution refers to an organic mixed solution prepared by mixing isopropanol with a purity of 99.9% and aqueous potassium hydroxide solution with a concentration of 1M in a volume ratio of 6:4.

[0035] In the second step, the conductive surface of the conductive glass 7 is coated with a wide bandgap semiconductor TiO with a particle size of 50 nanometers and a thickness of 50 microns. 2 Nanocrystalline film 6;

[0036] In the third step, the butterfly wings are immersed in the precursor solution of metal oxide titanium dioxide with a concentration of 30% by weight, and the metal oxide precursor or metal oxide is covered on the multi-level structure of the organism af...

Embodiment 2

[0041] The first step is to place the ITO glass in deionized water for ultrasonic treatment for 5 minutes, then place it in an organic mixed solution for ultrasonic treatment for 3 minutes to make the surface hydroxylated, and finally wash it in deionized water for 10 minutes.

[0042] The organic mixed solution refers to an organic mixed solution prepared by mixing isopropanol with a purity of 99.9% and aqueous potassium hydroxide solution with a concentration of 1M in a volume ratio of 6:4.

[0043] The second step is to coat a layer of wide bandgap semiconductor TiO with a particle size of 100 nanometers and a thickness of 1 micron on the conductive surface of the conductive glass 7 2 Nanocrystalline film6.

[0044] The third step is to immerse the peacock hair in the metal oxide zinc oxide precursor solution with a concentration of 1% by weight, and after 24 hours of hydrothermal treatment, the metal oxide ZnO will be generated in situ and covered on the multi-level struct...

Embodiment 3

[0049] The first step is to ultrasonically treat the FTO glass in deionized water for 5 minutes, then ultrasonically treat it in an organic mixed solution for 3 minutes to make the surface hydroxylated, and finally clean it with ultrasonic treatment in deionized water for 10 minutes.

[0050] The organic mixed solution refers to an organic mixed solution prepared by mixing isopropanol with a purity of 99.9% and aqueous potassium hydroxide solution with a concentration of 1M in a volume ratio of 6:4.

[0051] The second step is to coat a layer of wide bandgap semiconductor TiO with a particle size of 50 nanometers and a thickness of 100 microns on the conductive surface of the conductive glass 7 2 Nanocrystalline film 6;

[0052] The third step is to immerse the leaf chlorine body in the solution of the precursor of the metal oxide zirconia with a concentration of 60% by weight, and cover the metal oxide ZrO on the multi-layered structure of the leaf chlorine body to obtain bio...

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Abstract

The invention discloses a photo-anode of a dye-sensitized solar cell with a biomimetic structure and a preparation method thereof, and belongs to the technical field of solar cells. The photo-anode comprises a substrate layer, a biological fine structural material layer and a photosensitizer layer, wherein the substrate layer is positioned on the bottommost; the biological fine structural material layer is positioned on the substrate layer; and the photosensitizer layer is positioned on the biological fine structural material layer. The photo-anode can have good light-harvesting performance and maintain a nano material of a hierarchical fine structure with high absorptivity through the coupling of structural and functional materials; and compared with the single titanium dioxide, the light-harvesting efficiency of the photo-anode of the dye-sensitized solar cell based on the biological fine structure is doubled more, and the photo-anode is hopeful to be used as an electrode and applied to the field of solar energy widely.

Description

technical field [0001] The invention relates to an electrode in the technical field of solar cells and a preparation method thereof, in particular to a dye-sensitized solar cell photoanode imitating a biological structure and a preparation method thereof. Background technique [0002] Solar cells use photoelectric materials to absorb light energy and undergo photoelectron transfer reactions, and use the unidirectional conductivity of materials to separate positive and negative charges, so that the electron transfer process is completed in the external circuit to generate the necessary electromotive force and current. According to the different materials used, solar cells can be divided into: crystalline silicon solar cells; amorphous silicon solar cells; inorganic salt solar cells (such as gallium arsenide, cadmium sulfide); polymer multilayer modified electrode solar cells and dye-sensitized Solar battery. No matter what kind of material is used to make the battery, the ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/048H01G9/042H01G9/20H01M14/00H01L51/44H01L51/46H01L51/48
CPCY02E10/542Y02E10/549
Inventor 张荻朱申敏顾佳俊范同祥胡晓斌
Owner SHANGHAI JIAO TONG UNIV
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