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Preparation method of trimesic acid complex/titanium dioxide composite photoanode

A technology of trimesic acid and titanium dioxide, which is applied in the direction of photosensitive equipment, photovoltaic power generation, electrolytic capacitors, etc., to achieve the effect of improving photocurrent and light utilization rate, simple equipment, and improving capture capacity

Inactive Publication Date: 2018-12-07
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem of how to improve the photoelectric conversion efficiency of a dye-sensitized solar cell composed of a semiconductor photoanode. The invention provides a preparation method of a trimesic acid complex / titanium dioxide composite photoanode

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  • Preparation method of trimesic acid complex/titanium dioxide composite photoanode
  • Preparation method of trimesic acid complex/titanium dioxide composite photoanode
  • Preparation method of trimesic acid complex/titanium dioxide composite photoanode

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specific Embodiment approach 1

[0034] Specific embodiment one: a preparation method of a trimesic acid complex / titanium dioxide composite photoanode described in this embodiment, the method includes the following steps:

[0035] Step 1, dissolving solid trimesic acid with an organic solvent, adding it to solution A after the dissolution is completed, and stirring evenly, the solution A is a mixed solution composed of europium chloride solution and yttrium chloride solution;

[0036] The mass ratio of solid trimesic acid to organic solvent is 1: (3590~3650);

[0037] The mol ratio of the europium chloride in the europium chloride solution and the yttrium chloride in the yttrium chloride solution is 1:(2~20):

[0038] The volume ratio of solution A to organic solvent is 1:(4~50);

[0039] Step 2, heat-treating the uniformly stirred mixed solution for 2 hours to 48 hours, and the temperature range of the heat treatment is 55°C to 80°C, to obtain nanocrystals of trimesic acid complexes containing impurities; ...

specific Embodiment approach 2

[0045] Embodiment 2: The difference between this embodiment and the method for preparing a trimesic acid complex / titanium dioxide composite photoanode described in Embodiment 1 is that in step 5, the coating thickness is 5 um to 10 um. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Specific embodiment three: the difference between this embodiment and the preparation method of a trimesic acid complex / titanium dioxide composite photoanode described in specific embodiment one is that in step one, the amount of europium chloride solution and yttrium chloride solution The concentrations are all 0.05mol / L-2mol / L, and the solutes in the europium chloride solution and the yttrium chloride solution are both hexahydrate chlorides, and the solvents of both are distilled water. Others are the same as in the first embodiment.

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Abstract

The invention relates to a preparation method of a trimesic acid complex / titanium dioxide composite photoanode, which relates to the field of the construction of a rare earth trimesic acid complex / TiO2 composite photoanode and solves a problem of how to improve the photoelectric conversion efficiency of a dye-sensitized solar cell formed by a semiconductor photoanode. The method comprises the steps of first, obtaining dried trimesic acid complex nano-crystals; mixing the dried trimesic acid complex nano-crystals and TiO2(P25), and obtaining mixed sol after uniform mixing; fifth, uniformly coating the surface of FTO glass with the mixed sol, drying and roasting, and naturally cooling to the room temperature; then uniformly smearing the mixed sol on the first layer of the mixed sol on the FTO glass, drying and roasting so as to complete the preparation of the trimesic acid complex / titanium dioxide composite photoanode. The preparation method is mainly used for preparing the dye-sensitized solar cells.

Description

technical field [0001] The invention relates to a rare earth trimesic acid complex / TiO 2 Composite photoanode construction field. Background technique [0002] Dye-sensitized Solar Cells (DSSCs for short) have attracted widespread attention in the field of new energy due to their green features, low cost, and easy operation, and are rapidly being applied in both theoretical and practical fields. develop. The main factors affecting the optoelectronic performance of dye-sensitized solar cells are photoanode material structure, electrolyte composition, counter electrode performance, dye absorption spectrum and so on. [0003] At present, the commonly used dyes in the system are N3, N719, C101 and C103, etc., and their spectral absorption range only accounts for about 45% of the solar spectrum. Due to the spectral matching problem, some photons cannot be effectively used by the battery, which limits DSSCs to a certain extent. Further improvement of light conversion efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20H01G9/042
CPCH01G9/2031Y02E10/542
Inventor 王国凤许宏一潘清江潘凯付宏刚
Owner HEILONGJIANG UNIV
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