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Preparation method for ZnO microspherical photo anode based on multilevel structure and photo anode prepared with method

A photoanode and microsphere technology, applied in the field of photoanode, can solve the problems of complex process and easy damage of ZnO microsphere structure, and achieve the effect of simple preparation process, adjustable microsphere diameter and controllable film thickness

Active Publication Date: 2015-12-23
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has problems such as complex process and easy damage of ZnO microsphere structure.

Method used

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  • Preparation method for ZnO microspherical photo anode based on multilevel structure and photo anode prepared with method
  • Preparation method for ZnO microspherical photo anode based on multilevel structure and photo anode prepared with method
  • Preparation method for ZnO microspherical photo anode based on multilevel structure and photo anode prepared with method

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Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, a method for preparing a photoanode based on hierarchical structure ZnO microspheres, the steps are as follows:

[0023] (1) Measure 400ml of methanol solution and place it in a weighing bottle, weigh 7.90g of zinc acetate dihydrate (the concentration of zinc acetate dihydrate in methanol solution is 0.09M), and mix zinc acetate dihydrate with magnetic stirring. Add the above-mentioned weighing bottle to make it all dissolve in the methanol solution, stir the solution evenly to obtain the methanol solution of zinc acetate dihydrate;

[0024] (2) Put the cleaned FTO conductive substrate into the bottom of the above-mentioned weighing bottle filled with zinc acetate dihydrate methanol solution in the form of the conductive side facing up, put the weighing bottle on the lid and place it in a place that has been heated to In an oven at 60°C, and react at a constant temperature at this temperature for 24 hours; after the reaction, wash with deionized wate...

Embodiment 2

[0026] In this embodiment, a method for preparing a photoanode based on hierarchical structure ZnO microspheres, the steps are as follows:

[0027] (1) Measure 400ml of methanol solution and place it in a weighing bottle, weigh 11.41g of zinc acetate dihydrate (the concentration of zinc acetate dihydrate in methanol solution is 0.13M), and mix zinc acetate dihydrate with magnetic stirring Add the above-mentioned weighing bottle to make it all dissolve in the methanol solution, stir the solution evenly to obtain the methanol solution of zinc acetate dihydrate;

[0028] (2) Put the cleaned FTO conductive substrate into the bottom of the above-mentioned weighing bottle filled with zinc acetate dihydrate methanol solution in the form of the conductive side facing up, put the weighing bottle on the lid and place it in a place that has been heated to In an oven at 60°C, and react at a constant temperature at this temperature for 24 hours; after the reaction, wash with deionized wate...

Embodiment 3

[0030] In this embodiment, a method for preparing a photoanode based on hierarchical structure ZnO microspheres, the steps are as follows:

[0031] (1) Measure 400ml of methanol solution and place it in a weighing bottle, weigh 13.17g of zinc acetate dihydrate (the concentration of zinc acetate dihydrate in methanol solution is 0.15M), and mix zinc acetate dihydrate with magnetic stirring Add the above-mentioned weighing bottle to make it all dissolve in the methanol solution, stir the solution evenly to obtain the methanol solution of zinc acetate dihydrate;

[0032] (2) Put the cleaned FTO conductive substrate into the bottom of the above-mentioned weighing bottle filled with zinc acetate dihydrate methanol solution in the form of the conductive side facing up, put the weighing bottle on the lid and place it in a place that has been heated to In an oven at 60°C, and react at a constant temperature at this temperature for 48 hours; after the reaction, wash with deionized wate...

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Abstract

The invention discloses a preparation method for a ZnO microspherical photo anode based on a multilevel structure. A large-area photo anode film is obtained with a low-temperature chemical bath deposition method by performing in-situ synthesis on zinc acetate dihydrate and methanol as raw materials on a conductive substrate. In addition, the invention furthermore discloses the photo anode prepared with the preparation method. The preparation method has the characteristics of simple preparation process, controllable film thickness, adjustable microspherical diameter, low synthetic temperature, low cost, capability of performing large-area film preparation, low possibility of destroying ZnO microspherical structures and the like, and is mild in reaction condition, high in controllability and repeatability, suitable for large-area photo anode preparation and favorable for realizing popularization, application and industrialization.

Description

technical field [0001] The invention relates to the technical field of energy materials, in particular to a method for preparing a photoanode of a ZnO microsphere-based dye-sensitized solar cell with a multilevel structure and the prepared photoanode. Background technique [0002] In 1991, M. For the first time, they assembled a dye-sensitized solar cell (DyeSensitized Solar Cell, DSSC) with a photoelectric conversion efficiency of 7.9%, which is called the third-generation solar cell because of its simple preparation process, low cost and high photoelectric conversion efficiency. A whole new field of solar cell research and development. Dye-sensitized solar cells are mainly composed of counter electrodes, photoanodes, dye sensitizers, and redox electrolytes, among which the photoanode is the core component of the cell. At present, the photoanode is mainly nanocrystalline TiO 2 film, since ZnO has and TiO 2 Similar band gap and electron affinity, and the electron diffus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20H01G9/042
Inventor 王艳香孙健李家科郭平春杨志胜黄丽群
Owner JINGDEZHEN CERAMIC INSTITUTE
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