Preparation method of composite core-shell nano hollow ball and application of composite core-shell nano hollow ball in dye-sensitized solar cell

A technology of hollow spheres and composite cores, applied in the field of solar cells, can solve problems such as difficulty and limited semiconductor materials, and achieve the effects of easy operation, improved light utilization, and reduced surface defects
CN107170584AActive Publication Date: 2017-09-15YANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANGZHOU UNIV
Publication Date
2017-09-15

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Abstract

The invention provides a preparation method of a composite core-shell nano hollow ball and application of the composite core-shell nano hollow ball in a dye-sensitized solar cell and belongs to the technical field of solar cells. The method comprises steps of mixing cerous chloride heptahydrate with trisodium citrate, ytterbium nitrate, erbium nitrate water solution and hydrogen peroxide solution to carry out a hydrothermal reaction so as to obtain a double-layered structure CeO2:Yb / Er hollow ball nano ball; dispersing the nano ball in isopropanol; mixing the obtained solution with ammonia water and tetraethyl orthosilicate to carry out a water bath reaction so as to obtain a Ce02:Yb / Er@SiO2 hollow ball nano ball; and mixing the obtained nano ball with polyvinylpyrrolidone, ethylene glycol, silver nitrate and sodium borohydride water solution and carrying out reactions so as to obtain a double-layered structure Ce02:Yb / Er@SiO2@Ag composite core-shell nano hollow ball. By coating the material on the surface of nano-titanium dioxide slurry, and calcinating the obtained material and dipping the obtained material into N719 dyes, a photoanode material of a dye-sensitized solar cell is obtained.
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Description

technical field

[0001] The invention belongs to the technical field of solar cells, and in particular relates to a preparation method of a dye-sensitized solar cell photoanode material. Background technique

[0002] With the sharp increase of energy crisis and environmental problems, people pay more and more attention to new clean energy. Solar energy is a clean energy with abundant reserves. Reasonable development and utilization of solar energy will greatly improve people's lives. Solar cells realize the direct conversion of solar energy into electrical energy, which is also one of the basic ways for people to use solar energy. Dye-sensitized solar cells, as a kind of solar cells, have the advantages of low cost, stability, high efficiency, and easy fabrication, so they have very broad development prospects.

[0003] To obtain a high-efficiency dye-sensitized solar cell, the nanomaterials that constitute the photoanode must have a high specific surface area and be able ...

Claims

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