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Erbium-mono-doped C12A7 up-conversion material-doped dye-sensitized photoanode and preparation method and application thereof

A conversion material and dye sensitization technology, applied in the field of new energy materials, can solve the problems of sunlight loss and other problems, achieve the effect of improving battery efficiency, widening the response range, and improving battery efficiency

Inactive Publication Date: 2018-01-26
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, the response range of dyes to sunlight is concentrated in 400-700nm, accounting for only 45% of the solar spectrum, while most of the remaining wavelengths of sunlight are lost in the form of heat energy.

Method used

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  • Erbium-mono-doped C12A7 up-conversion material-doped dye-sensitized photoanode and preparation method and application thereof
  • Erbium-mono-doped C12A7 up-conversion material-doped dye-sensitized photoanode and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Weigh 2.65g of ethyl cellulose and dissolve it in 23.67g of absolute ethanol to prepare solution A;

[0038] 2. 0.02g C12A7:Er and 1g titanium dioxide P25 were added in solution A, then 0.026gOP emulsifier, 0.294g acetylacetone and 3.73g terpineol were added to prepare solution B;

[0039] 3. Ultrasonicate solution B for 20 minutes;

[0040] 4. Place the ultrasonically treated solution B in a water bath, stir at a constant temperature of 80°C, and prepare colloid C after the absolute ethanol has evaporated;

[0041] 5. Fix the FTO conductive glass with 3M tape, and apply colloid C on the conductive glass with a glass rod;

[0042] 6. Place the conductive glass in a drying oven, dry it at 80°C for 10 minutes, then move it to a muffle furnace, and calcinate it at 450°C for 30 minutes;

[0043] 7. Soak the calcined electrode with dye for 24 hours, during which it should be protected from light;

[0044] 8. Wash the sensitized photoanode several times with absolute et...

Embodiment 2

[0050] The difference between this embodiment and embodiment 1 is that the C12A7:Er in step 2 is 0.1 g.

Embodiment 3

[0052] The difference between this embodiment and embodiment 1 is that the ultrasonic time in step 3 is 30 minutes.

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Abstract

The invention belongs to the technical field of new energy materials and discloses an erbium-mono-doped C12A7 up-conversion material-doped dye-sensitized photoanode and a preparation method and application thereof. C12A7:Er is applied to a dye-sensitized solar cell for the first time. According to the method, mixed paste of the C12A7:Er and P25 coats conductive glass by adopting a draw-off methodto prepare a photoanode, and the dye-sensitized solar cell is assembled. The cell comprises the photoanode, a platinum counter electrode and an electrolyte. According to the cell, the photoanode is doped with the C12A7:Er, and the sunlight of over 700nm is converted into visible light, so that the spectral response range of the cell is expanded and the efficiency of the cell is improved.

Description

technical field [0001] The invention belongs to the technical field of new energy materials, and particularly relates to an erbium monodoped heptaaluminate calcium dodecaaluminate up-conversion material doped with a dye-sensitized photoanode, a preparation method thereof, and an application in a dye-sensitized solar cell. Background technique [0002] Dye-sensitized solar cells (DSSCs) have the advantages of low cost, simple preparation process and no pollution, and stand out among many solar cells in recent years. DSSC is mainly composed of three parts: counter electrode, photoanode and electrolyte. The development of electrodes and electrolytes has little effect on the improvement of DSSC battery efficiency. To improve the photoelectric conversion efficiency of the battery, it is most effective to improve the photoanode. The photoanode is mainly composed of conductive optical glass, nanoporous semiconductor layer and dye sensitizer. The dye sensitizer is adsorbed on the ...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/042C09K11/64
CPCY02E10/542
Inventor 钱艳楠唐巽泽张海燕
Owner GUANGDONG UNIV OF TECH
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