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Methods for preparing porous spherical titanium dioxide paste and sensitized photo-anode

A titanium dioxide, porous spherical technology, applied in the field of dye-sensitized solar cells, can solve the problems of easy aggregation of particles and low DSC efficiency, and achieve the effect of increasing adsorption capacity, high light capture efficiency, and improving secondary absorption

Inactive Publication Date: 2011-09-07
DONGGUAN ANWELL DIGITAL MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of suspended P25 and submicron titanium dioxide particles, which are easy to agglomerate, the efficiency of DSC prepared is generally not high.

Method used

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  • Methods for preparing porous spherical titanium dioxide paste and sensitized photo-anode
  • Methods for preparing porous spherical titanium dioxide paste and sensitized photo-anode
  • Methods for preparing porous spherical titanium dioxide paste and sensitized photo-anode

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A preparation method of a porous spherical titanium dioxide slurry, which is used for a dye-sensitized solar cell photoanode, comprising the following specific steps:

[0021] Step A: Add 6 grams of hexadecylamine into 600 milliliters of absolute ethanol, and ultrasonically disperse until completely dissolved; add 2.5 milliliters of potassium chloride aqueous solution with a molar concentration of 0.1 mol / liter while stirring to obtain a mixed solution I; Quickly add 13 grams of isopropyl titanate to I, stir to obtain a milky white suspension, leave it for 18 hours, and separate to obtain the solid in the suspension; dry the solid in the suspension to obtain a titanium dioxide precursor, which is The body is white powder, and the yield is not less than 90%;

[0022] Step B: Weigh 3.2 grams of titanium dioxide precursor and disperse it in a mixture of 40 milliliters of absolute ethanol, 20 milliliters of deionized water and 1 milliliter of ammonia water with a mass conce...

Embodiment 2

[0025] A method for preparing a dye solar cell photoanode with porous spherical titanium dioxide as slurry, comprising the steps of:

[0026] Step A: Add 6 grams of hexadecylamine into 600 milliliters of absolute ethanol, and ultrasonically disperse until completely dissolved; add 2.5 milliliters of potassium chloride aqueous solution with a molar concentration of 0.1 mol / liter while stirring to obtain a mixed solution I; Add 13 gram isopropyl titanates rapidly in I, stir to obtain milky white suspension, leave standstill, separate, obtain the solid in the suspension; Dry the solid in the suspension, obtain the titanium dioxide precursor, this titanium dioxide precursor is White powder, yield not less than 90%;

[0027] Step B: Weigh 3.2 grams of titanium dioxide precursor and disperse it in a mixture of 40 milliliters of absolute ethanol, 20 milliliters of deionized water and 1 milliliter of ammonia water with a mass concentration of 25%, and transfer it to a closed reaction ...

Embodiment 3

[0031] A dye-sensitized solar cell, the dye-sensitized solar cell includes an anode and a cathode, an electrolyte solution is perfused between the anode and the cathode, and the anode is the photoanode of the dye-sensitized solar cell prepared in Example 2 .

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Abstract

The invention provides a method for preparing porous spherical titanium dioxide paste, the method for using the porous spherical titanium dioxide paste as a dye-sensitized solar cell photo-anode and a cell prepared from the dye-sensitized solar cell photo-anode. The porous spherical titanium dioxide paste is used for the dye-sensitized solar cell photo-anode. The porous spherical titanium dioxide paste is used as the dye-sensitized solar cell photo-anode, and the characteristics of large particle sizes and surface porousness of the porous spherical titanium dioxide paste are fully utilized so as to improve the secondary absorption of light, ensure the relatively higher light trapping efficiency of the photo-anode, increase a sensitive dye absorption amount, enhance the productivity and transportation capacity of photon-generated carriers, reduce the compounding process of the photon-generated carriers and further improve the photoelectric conversion efficiency of the dye-sensitized solar cell. In the methods, raw materials are readily available, and simple operations and low energy consumption are ensured; and the product has a stable structure and a large specific surface area, and is easy to store and suitable for highly-efficient dye-sensitized cell preparation.

Description

technical field [0001] The invention relates to the technical field of dye-sensitized solar cells, in particular to a method for preparing porous spherical titanium dioxide slurry, which is specially used for preparing photoanodes of dye-sensitized solar cells. Background technique [0002] Solar energy conversion is the most active field of new energy development and utilization. Solar cells currently on the market are mainly monocrystalline silicon and polycrystalline silicon. However, the manufacturing cost of these two solar cells is too high, which is not conducive to widespread application. The dye-sensitized solar cell (DSC), which appeared in the 1990s, is a solar cell developed based on the principle of plant chlorophyll photosynthesis. It has attracted widespread attention because of its potential high efficiency and low cost. A DSC is a type of solar cell using a wide bandgap semiconductor material. The wide bandgap semiconductor itself has high thermodynamic s...

Claims

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Application Information

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IPC IPC(8): H01G9/042H01G9/20H01M14/00H01L51/48H01L51/44
CPCY02E10/50Y02E60/13Y02E10/542Y02E10/549
Inventor 杨明生赵伟明谭国良周志钊黄希明孙满龙王勇
Owner DONGGUAN ANWELL DIGITAL MASCH CO LTD
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