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Titanium dioxide light anode, and preparation method and use thereof

A technology of titanium dioxide and photoanode, which is applied in the field of photoanode to achieve the effects of novel appearance, simple preparation and increased scattering performance

Inactive Publication Date: 2012-11-21
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The titanium dioxide thin film coated solely by titanium dioxide nanoparticles, because the titanium dioxide nanoparticles are closely arranged, the scattering of light is weak, so the utilization efficiency of sunlight entering the photoanode is low, which is not good for improving the photoelectric conversion efficiency of the battery

Method used

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  • Titanium dioxide light anode, and preparation method and use thereof
  • Titanium dioxide light anode, and preparation method and use thereof
  • Titanium dioxide light anode, and preparation method and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Example 1: The photoelectric conversion performance of 0.2g of 1000nm annular titanium dioxide microspheres and 5ml of absolute ethanol uniformly mixed and coated on a titanium dioxide film electrode.

[0034] 1000nm (microsphere diameter) annular titanium dioxide microspheres (see figure 2 (shown) is obtained from 0.51ml tetrabutyl titanate, 0.2ml hydrofluoric acid, 16h, solvothermal at 180°C. Rotate and centrifuge, dry in an oven at 60°C for 3 hours, then mix 0.2g of high-power ultrasound with 5ml of absolute ethanol, and then stir for 1 hour to coat a film on the photoanode of titanium dioxide nanoparticles, with a film thickness of about 12μm. The conductive glass coated with the film was calcined in a muffle furnace at 450° C. for 2 hours to obtain a double-layer structure photoanode of the dye-sensitized nanocrystalline solar cell. The photoanode was soaked in a concentration of 5×10 -4 mol / L ruthenium complex N719 dye (English name: RuL2(NCS)2:2TBA(L=2,2'-bipy...

Embodiment 2

[0035] Embodiment 2: by 0.2g 2000nm spherical titanium dioxide microsphere (see image 3 Shown) and 5ml of absolute ethanol are evenly mixed and coated on the photoelectric conversion performance of the titanium dioxide film electrode.

[0036] 2000nm (microsphere diameter) spherical titanium dioxide microspheres were obtained from 1.02ml tetrabutyl titanate, 16h, solvothermal at 180°C. Rotate and separate, dry in an oven at 60°C for 3h, then mix 0.2g of high-power ultrasound with 5ml of absolute ethanol, and then stir for 1h to coat a film on the photoanode of titanium dioxide nanoparticles, with a film thickness of about 12μm. The conductive glass coated with the film was calcined in a muffle furnace at 450° C. for 2 hours to obtain a double-layer structure photoanode of the dye-sensitized nanocrystalline solar cell. The photoanode was soaked in a concentration of 5×10 -4 mol / L N719 solution for 24 hours, the photoanode was fully sensitized by the dye. Then the photoanode...

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Abstract

The invention discloses a titanium dioxide light anode, comprising a transparent conductive substrate and a coating film coated on the transparent conductive substrate. The coating film contains titanium dioxide nano particles, wherein a titanium dioxide microsphere layer is also coated on the surface of the coating film. The invention further discloses a method for preparing the titanium dioxidelight anode and use thereof. Compared with the prior art, the invention has the advantages that by introducing the titanium dioxide light anode with a double-layer structure, the number of light propagation paths in a titanium dioxide film is increased; the rate that light is absorbed by the titanium dioxide film is increased; the photoelectric conversion efficiency of a cell is advantageous for being improved; the preparation of the titanium dioxide microsphere is simple, environment-friendly and cheap and the profile of the titanium dioxide microsphere is novel; the titanium dioxide microsphere is applicable for being used as a scattering layer and coated on a light anode of a dye-sensitized nanocrystalline solar cell; the titanium dioxide light anode with the double-layer structure is formed; the scattering characteristics of the light anode are improved; and the photoelectric conversion efficiency of the cell is improved.

Description

technical field [0001] The invention relates to a photoanode of a solar cell, in particular to a titanium dioxide photoanode, and also relates to a preparation method and application of the photoanode. Background technique [0002] Dipyridylcarboxylate ruthenium complex sensitized porous titanium dioxide nanostructured photoanode photovoltaic cells——dye-sensitized solar cells have brought revolutionary innovations to the development of photoelectrochemical cells, with high photoelectric conversion efficiency and far lower prices than In traditional semiconductor solar cells, the titanium dioxide nanostructured photoanode mainly includes a transparent conductive substrate and a titanium dioxide nanoparticle coating film coated thereon, and the transparent conductive substrate is often made of conductive glass. For the technical literature in this aspect, please refer to the Chinese Invention Application Publication "Preparation Method of Photoanode of Dye-Sensitized Solar Ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/42H01L51/44H01L51/48
CPCY02E10/542Y02E10/50Y02E10/549
Inventor 诸跃进张京郑君王培卿孙强杨广涛崔艳峥张雪妮
Owner NINGBO UNIV
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