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Heterostructure photoanode for dye-sensitized solar cell and manufacturing method thereof

A solar cell and hierarchical structure technology, applied in photosensitive devices, capacitor electrodes, circuits, etc., can solve problems such as failure to achieve results, and achieve the effects of improving light utilization efficiency, improving photoelectric conversion efficiency, and enhancing charge transmission and separation

Inactive Publication Date: 2010-06-09
DALIAN FISHERIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the photoelectric conversion efficiency can reach 7%, it has not achieved the ideal effect

Method used

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  • Heterostructure photoanode for dye-sensitized solar cell and manufacturing method thereof
  • Heterostructure photoanode for dye-sensitized solar cell and manufacturing method thereof
  • Heterostructure photoanode for dye-sensitized solar cell and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] a. Weigh 5 milliliters of butyl titanate and add it to 18 mL of absolute ethanol, mix and stir for 30 minutes, then add 0.3 milliliters of acetic acid, and continue to stir until a yellowish, transparent and clear solution is formed to obtain TiO sol solution;

[0030] b. Weigh 1.5 grams of zinc acetate and dissolve it in 10 milliliters of absolute ethanol, and mix and stir for 30 minutes to form a transparent and clear solution to obtain a zinc acetate solution;

[0031] c. Then 0.5 ml of titanium dioxide sol and 0.5 ml of zinc acetate were stirred for 60 minutes to form a yellow, transparent and clear solution to obtain a TiO2-zinc acetate mixed solution;

[0032] d. 2 ml of TiO2-zinc acetate solution was added to 10 ml of polyvinyl alcohol ethanol (absolute ethanol) solution of 30% mass concentration, and stirred for 3 hours to form a uniform and stable TiO2-zinc acetate / polyvinyl alcohol spinning solution ;

[0033] e. Place the TiO2-zinc acetate / polyvinyl alcohol ...

Embodiment 2

[0040] a. Weigh 10 ml of butyl titanate and add it to 20 ml of absolute ethanol, mix and stir for 30 minutes, then add 1.5 ml of acetic acid, and continue to stir until a slightly yellow, transparent and clear solution is formed to obtain TiO sol solution;

[0041] b. Weigh 0.5 gram of zinc acetate and dissolve it in 15 ml of absolute ethanol, and mix and stir for 30 minutes to form a transparent and clear solution to obtain a zinc acetate solution;

[0042] c. Then 1 ml of titanium dioxide sol and 1 ml of zinc acetate were stirred for 60 minutes to form a yellow, transparent and clear solution to obtain a TiO2-zinc acetate mixed solution;

[0043] d. 2 ml of TiO2-zinc acetate mixed solution was added to 5 ml of polyvinyl alcohol ethanol (absolute ethanol) solution of 40% mass concentration, and stirred for 3 hours to form uniform and stable TiO2-zinc acetate / polyvinyl alcohol spinning solution;

[0044] e. Place the TiO2-zinc acetate / polyvinyl alcohol spinning solution in a ...

Embodiment 3

[0050] a. Weigh 3 ml of ethyl titanate and add it to 10 ml of absolute ethanol, mix and stir for 30 minutes, then add 0.1 ml of acetic acid, and continue to stir until a yellowish, transparent and clear solution is formed to obtain TiO sol solution;

[0051] b. Weigh 2 grams of zinc acetate and dissolve it in 20 milliliters of absolute ethanol, mix and stir for 30 minutes to form a transparent and clear solution to obtain a zinc acetate solution;

[0052] c. Then 2 milliliters of titanium dioxide sol and 2 milliliters of zinc acetate were stirred for 60 minutes to form a yellow, transparent and clear solution to obtain a TiO2-zinc acetate mixed solution;

[0053] d. 3 milliliters of TiO2-acetate solution was added to 15 milliliters of polyvinylpyrrolidone ethanol (absolute ethanol) solution of 15% mass concentration, and stirred for 3 hours to form uniform and stable TiO2-zinc acetate / polyvinylpyrrolidone spinning solution;

[0054] e. Place the TiO2-zinc acetate / polyvinylpyr...

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Abstract

The invention discloses a heterostructure photoanode for a dye-sensitized solar cell, comprising conductive glass and a dye absorption layer coated on the conductive glass. The dye absorption layer is a TiO2-semiconductor heterostructure film, wherein a primary structure is TiO2 nano-fiber or / and TiO2 nano-tubes, and a secondary structure is at least one of semiconductor nano-particles, semiconductor nao-rods and semiconductor nano-wires constructed by semiconductor nano-fiber or / and semiconductor nano-tubes, namely that 1-D heterostructure nano-material as the dye absorption layer of the photoanode of a dye-sensitized solar cell. The combination of the structural characteristics of 1-D nano-size and the polarization property of galvanic couple formed by TiO2 / semiconductor composite system interface can enhance the transmission and the separation of electric charges and improve the electronic transmission efficiency; meanwhile, a huge specific surface area can effectively improve the amount of dye absorption and the light utilization efficiency and further improve the photoelectric transformation efficiency of the dye-sensitized solar cell by 10 percent.

Description

Technical field: [0001] The invention relates to a dye-sensitized solar cell photoanode and a preparation method thereof, in particular to a dye-sensitized solar cell which can effectively increase the dye adsorption amount and the light utilization efficiency, thereby further improving the photoelectric conversion efficiency of the dye-sensitized solar cell Hierarchical structure photoanode for battery and preparation method thereof. Background technique: [0002] The dye adsorption amount and light utilization efficiency of the photoanode of dye-sensitized solar cells (DSC) are the main factors that directly affect the photoelectric conversion efficiency of dye-sensitized solar cells. It is also capable of fast delivery in the photoanode. Studies have shown that only single-layer dye molecules chemically adsorbed on the semiconductor surface can produce effective sensitization efficiency, while multi-layer dyes can hinder the transmission of electrons. There is a single ...

Claims

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Application Information

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IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/44H01L51/48
CPCY02E10/542H01G9/2059H01G9/2031Y02P70/50
Inventor 潘超汪静
Owner DALIAN FISHERIES UNIVERSITY
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