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Magnetized ternary photoanode composite film and preparation method thereof

A composite film and photoanode technology, applied in photosensitive equipment, photovoltaic power generation, electrical components, etc., can solve the problem of limited impact on battery efficiency, enhance the localized surface plasmon resonance effect, improve light absorption performance, good effect

Active Publication Date: 2018-02-06
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the application of localized surface plasmon resonance in photovoltaic cells still has some unavoidable defects, for example: the characteristics of localized surface plasmon resonance are affected by many factors, such as metal elements, morphology, size, The influence of the surrounding environment medium and plasmon resonance coupling; and the strongest effect of localized surface plasmon resonance often occurs at the metal / dielectric interface, and the penetration depth is often only tens of nanometers, resulting in localized surface plasmon resonance Meta-resonances have limited impact on cell efficiency

Method used

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  • Magnetized ternary photoanode composite film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] (1) Add 20ml of deionized water and 20ml of concentrated hydrochloric acid into the hydrothermal kettle, stir for 5 minutes, then add 0.5ml of butyl titanate, stir for 30 minutes, then add 0.5mM ferric nitrate solution, stir for 5 minutes, cover the lid, put Place in a muffle furnace at 150°C for 10 hours, take it out, rinse it with deionized water, and dry it to obtain a titanium dioxide array film loaded with magnetic metal ions;

[0032] (2) preparation concentration is the silver nitrate solution of 0.5mM in beaker 1, and regulates pH with ammoniacal liquor and is equal to 8.5, and preparation concentration is the sodium citrate aqueous solution of 0.5mM in beaker 2;

[0033] (3) Put the titanium dioxide array film prepared in step (1) into beaker 1 and soak for 5 minutes, take it out and soak it in beaker 2 for 1 minute, take it out, wash it with deionized water, and then sinter at 450°C for 30 minutes to obtain a ternary photoanode composite film ;

[0034] (4) a...

Embodiment 2

[0038] (1) Add 20ml of deionized water and 20ml of concentrated hydrochloric acid into the hydrothermal kettle, stir for 5 minutes, then add 0.5ml of butyl titanate, stir for 30 minutes, then add 5mM ferric nitrate solution, stir for 5 minutes, cover the lid, put Place in a muffle furnace at 150°C for 10 hours, take it out, wash it with deionized water, and dry it to obtain a titanium dioxide array film loaded with magnetic metal ions;

[0039] (2) preparation concentration is the silver nitrate solution of 4mM in beaker 1, and adjusts pH with ammoniacal liquor and is equal to 8.5; In beaker 2, preparation concentration is the sodium citrate aqueous solution of 4mM;

[0040](3) Put the titanium dioxide array film prepared in step (1) into beaker 1 and soak for 15 minutes, take it out and soak it in beaker 2 for 5 minutes, take it out, rinse with deionized water, and then sinter at 450°C for 30 minutes to obtain a ternary photoanode composite film;

[0041] (4) applying an ext...

Embodiment 3

[0045] (1) Add 20ml of deionized water and 20ml of concentrated hydrochloric acid into the hydrothermal kettle, stir for 5 minutes, then add 0.5ml of butyl titanate, stir for 30 minutes, then add 10mM ferric nitrate solution, stir for 5 minutes, cover the lid, put Place in a muffle furnace at 150°C for 10 hours, take it out, wash it with deionized water, and dry it to obtain a titanium dioxide array film loaded with magnetic metal ions;

[0046] (2) preparation concentration is the silver nitrate solution of 4mM in beaker 1, and adjusts pH with ammoniacal liquor and is equal to 8.5; In beaker 2, preparation concentration is the sodium citrate aqueous solution of 4mM;

[0047] (3) Put the titanium dioxide array film prepared in step (1) into beaker 1 and soak for 15 minutes, take it out and soak it in beaker 2 for 10 minutes, take it out, rinse with deionized water, and then sinter at 450°C for 30 minutes to obtain a ternary photoanode composite film ;

[0048] (4) applying an...

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Abstract

The invention discloses a magnetized ternary photo-anode composite thin film and a preparation method therefor, and belongs to the technical field of a photovoltaic cell. A semiconductor array film and magnetic metal ions are prepared by a solution method firstly; then a metal material is deposited on the array film by a reduction deposition method to establish the novel photo-anode composite thin film which is formed by the magnetic metal ions / metal / semiconductor; the magnetic metal ions are magnetized by applying a static external magnetic field to further influence the dielectric characteristics of the magnetic metal ion so as to realize dynamic control on the localized surface plasmon resonance; therefore, the localized surface plasmon resonance effect is reinforced; the optical absorption property of the photovoltaic cell is improved; and the photoelectric conversion efficiency of the cell is further improved. The magnetized ternary photo-anode composite thin film has the characteristics of low cost, easy operation and good efficiency-lifting effect, and has a relatively bright application prospect.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic cells, in particular to a magnetized ternary photoanode composite film and a preparation method thereof. The composite film is a ternary photoanode composite film composed of magnetic metal ions / metal / semiconductor, and its dielectric properties are dynamically controlled by applying an external magnetic field to magnetize the magnetic metal ion material. Background technique [0002] Photoelectric conversion efficiency is a very critical indicator for the commercial application of photovoltaic cells. In recent years, researchers have conducted various studies to improve the photoelectric conversion efficiency of dye-sensitized solar cells, including finding new semiconductors as photoanode films, and developing new dyes, electrolytes, and counter electrodes. However, due to the low utilization rate of the battery for visible light, which seriously affects the improvement of its performance,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20
CPCH01G9/209Y02E10/542
Inventor 许元妹张海燕李学识王文广李锦伦
Owner GUANGDONG UNIV OF TECH