Rare earth trimesic acid complex/diyttrium trioxide/titanium dioxide composite photoanode and its construction method

A technology of trimesic acid and yttrium trioxide, applied in photosensitive equipment, photovoltaic power generation, sustainable manufacturing/processing, etc., can solve the problems of low photoelectric conversion efficiency, improve photocurrent and light utilization rate, reduce consumption, Improve the effect of adsorption

Active Publication Date: 2022-05-17
HEILONGJIANG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention solves the technical problem of low photoelectric conversion efficiency of the existing photoanode as a dye-sensitized solar cell, and provides a rare earth trimesic acid complex / 2yttrium trioxide / titanium dioxide composite photoanode and its construction method

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  • Rare earth trimesic acid complex/diyttrium trioxide/titanium dioxide composite photoanode and its construction method
  • Rare earth trimesic acid complex/diyttrium trioxide/titanium dioxide composite photoanode and its construction method
  • Rare earth trimesic acid complex/diyttrium trioxide/titanium dioxide composite photoanode and its construction method

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specific Embodiment approach 1

[0021] Specific embodiment one: The preparation material of rare earth trimesic acid complex / diyttrium trioxide / titanium dioxide composite photoanode in this embodiment includes Ln(BTC) / Y 2 o 3 :Ln 3+ Composite, TiO 2 And FTO conductive glass; where FTO conductive glass is conductive glass doped with F; Ln(BTC) / Y 2 o 3 :Ln 3+ Composite and TiO 2 The mass ratio is 1: (100-1000).

specific Embodiment approach 2

[0022] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the surface resistance of FTO conductive glass is 30Ω / cm 2 , the length is 2cm, the width is 1.5cm, and the thickness is 3mm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: Ln(BTC) / Y 2 o 3 :Ln 3+ The preparation method of complex is carried out as follows:

[0024] 1. Trimellitic acid and N,N-dimethylformamide are mixed and dissolved, and added to an aqueous chloride solution to obtain a mixture;

[0025] 2. Carrying out solvothermal treatment to the mixture obtained in step 1, the solvothermal treatment temperature is 60-100°C, and the treatment time is 12-24h, then washed and centrifuged with methanol, and the precipitate obtained by centrifugation is dried, the drying temperature is 60-80°C, Rare earth trimesic acid complex crystals are obtained;

[0026] 3. Put the rare earth trimesic acid complex crystal obtained in step 2 into a muffle furnace for high-temperature calcination. The high-temperature calcination temperature is 400-450°C to obtain Ln(BTC) / Y 2 o 3 :Ln 3+ Complex. Others are the same as in the first or second emb...

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Abstract

Rare earth trimesic acid complex / diyttrium trioxide / titanium dioxide composite photoanode and its construction method, the composite photoanode and its construction field of the present invention. The invention aims to solve the technical problem of low photoelectric conversion efficiency of the existing photoanode as a dye-sensitized solar cell. Preparation materials of rare earth trimesic acid complex / yttrium trioxide / titanium dioxide composite photoanode include Ln(BTC) / Y 2 o 3 :Ln 3+ Composite, TiO 2 and FTO conductive glass; construction method: prepare mixed sol; scrape-coat the mixed sol on the surface of FTO glass, calcining, dye, and complete. The preparation of the composite photoanode of the invention is simple and easy to operate, low in cost and low in production risk. The photoelectric conversion efficiency and stability of the battery are improved, which can effectively realize industrial production. The rare earth trimesic acid complex / diyttrium trioxide / titanium dioxide composite photoanode prepared by the invention is used in a photoanode cell.

Description

technical field [0001] The composite photoanode and its construction field of the present invention. 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. 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. By preparing high-efficiency broad-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/042
CPCH01G9/2031Y02E10/542Y02P70/50
Inventor 王国凤许宏一魏廷库潘清江潘凯
Owner HEILONGJIANG UNIV
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