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Rare earth trimesic acid complex/yttrium oxide/titanium dioxide composite photo-anode and construction method thereof

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, and improve photoelectric performance , Improve the effect of light capture ability

Active Publication Date: 2020-04-28
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Rare earth trimesic acid complex/yttrium oxide/titanium dioxide composite photo-anode and construction method thereof
  • Rare earth trimesic acid complex/yttrium oxide/titanium dioxide composite photo-anode and construction method thereof
  • Rare earth trimesic acid complex/yttrium oxide/titanium dioxide composite photo-anode and construction method thereof

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specific Embodiment approach 1

[0021] Specific embodiment 1: The preparation material of the rare earth trimesic acid complex / yttrium trioxide / titanium dioxide composite photoanode of this embodiment includes Ln(BTC) / Y 2 O 3 :Ln 3+ Composite, TiO 2 And FTO conductive glass; 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] The second embodiment: The difference between this embodiment and the first embodiment is that the surface resistance of the 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 the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: This embodiment is different from specific embodiment one or two: Ln(BTC) / Y 2 O 3 :Ln 3+ The preparation method of the compound is carried out according to the following steps:

[0024] 1. Mix and dissolve trimesic acid and N,N-dimethylformamide, and add them to the aqueous chloride solution to obtain a mixture;

[0025] 2. The mixture obtained in step 1 is subjected to solvent heat treatment, the temperature of solvent heat treatment is 60~100℃, the treatment time is 12~24h, and then washed with methanol and centrifuged, the precipitate obtained by centrifugation is dried, and the drying temperature is 60~80℃. Obtain rare earth trimesic acid complex crystals;

[0026] 3. Put the rare earth trimellitic acid complex crystals obtained in step 2 into a muffle furnace for high-temperature calcination, and 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 the first or second embodim...

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Abstract

The invention discloses a rare earth trimesic acid complex / yttrium oxide / titanium dioxide composite photo-anode and a construction method thereof, and belongs to the field of composite photo-anodes and construction thereof. The invention aims to solve the technical problem that the photoelectric conversion efficiency is low when an existing photo-anode is used as a dye-sensitized solar cell. The preparation material of the rare earth trimesic acid complex / yttrium oxide / titanium dioxide composite photo-anode comprises an Ln (BTC) / Y2O3: Ln < 3 + > compound and TiO2 and FTO (Fluorine-doped Tin Oxide) conductive glass; and the construction method comprises the following steps: preparing mixed sol, blade-coating the mixed sol on the surface of FTO glass, calcining, and dyeing. The preparation method of the composite photo-anode is simple and easy to operate, low in cost and relatively low in production risk. The photoelectric conversion efficiency and stability of the cell are improved, andindustrial production can be effectively realized. The rare earth trimesic acid complex / yttrium oxide / titanium dioxide composite photo-anode prepared by the invention is used in a photo-anode cell.

Description

Technical field [0001] The composite photoanode of the invention and its construction field. Background technique [0002] Dye-sensitized Solar Cells (DSSCs) have attracted wide attention in the field of new energy due to their environmental protection characteristics, low cost, and easy operation. They are rapidly applied in both theoretical and practical applications. development of. The main factors that affect the photoelectric performance of dye-sensitized solar cells include photoanode material structure, electrolyte composition, counter electrode performance, and dye absorption spectrum. At present, the commonly used dyes in the system are N3, N719, C101 and C103, etc., whose spectral absorption range only accounts for about 45% of the solar spectrum. Due to spectral matching problems, some photons cannot be effectively used by the battery, which limits DSSCs to a certain extent. The light conversion efficiency is further improved. By preparing high-efficiency broad-spe...

Claims

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Application Information

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Patent Type & Authority Applications(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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