Low-temperature preparation method of highly oriented single crystal titanium dioxide nanowire array film

A nanowire array and titanium dioxide technology, which is applied in the field of low-temperature preparation of semiconductor nanowire array films, can solve the problems of nanotube length limitation, unfavorable large-scale production, and affecting lighting methods, etc., to achieve low raw material costs and easy large-scale film formation , The effect of simple process

Inactive Publication Date: 2010-09-29
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, one-dimensional titanium dioxide nanotube array films are mainly prepared by electrochemically anodizing titanium sheets or titanium films deposited on the surface of transparent conductive glass. On the one hand, the obtained nanotube array films are amorphous and require high-temperature crystallization treatment. On the other hand, , due to the opacity of the titanium sheet itself, which affe

Method used

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  • Low-temperature preparation method of highly oriented single crystal titanium dioxide nanowire array film
  • Low-temperature preparation method of highly oriented single crystal titanium dioxide nanowire array film
  • Low-temperature preparation method of highly oriented single crystal titanium dioxide nanowire array film

Examples

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Embodiment 1

[0011] Example 1: 1) First, cut the fluorine-doped tin oxide conductive glass (FTO) into a size of 1.5cm × 2.0, and then ultrasonically clean it with acetone, ethanol and deionized water and dry it, then put the fluorine-doped tin oxide conductive glass Put it into the polytetrafluoroethylene lining of the stainless steel autoclave, mix toluene, butyl titanate and concentrated hydrochloric acid with a concentration of 36-38% according to the volume ratio of 10:0.5:0.5, and then add it to the polytetrafluoroethylene lining of the stainless steel autoclave 2) Next, transfer the sealed autoclave to constant temperature equipment, and keep it warm for 20 hours at a constant temperature of 160°C for solvothermal reaction. After the reaction, it is naturally cooled to Room temperature; 3) Then, open the lid of the autoclave, take out the fluorine-doped tin oxide conductive glass, fully rinse the fluorine-doped tin oxide conductive glass with absolute ethanol and isopropanol, and dry ...

Embodiment 2

[0012] Example 2: 1) First, cut the fluorine-doped tin oxide conductive glass (FTO) into a size of 1.5cm × 2.0, and then ultrasonically clean it with acetone, ethanol and deionized water and dry it, then put the fluorine-doped tin oxide conductive glass Put it into the polytetrafluoroethylene lining of the stainless steel autoclave, mix toluene, butyl titanate and concentrated hydrochloric acid with a concentration of 36-38% according to the volume ratio of 10:0.5:0.5, and then add it to the polytetrafluoroethylene lining of the stainless steel autoclave Seal the autoclave in an ethylene liner; 2) Next, transfer the sealed autoclave to a constant temperature device, keep it warm for 10 hours at a constant temperature of 180°C, and carry out a solvothermal reaction. After the reaction is completed, naturally cool to room temperature 3) Then, open the autoclave cover, take out the fluorine-doped tin oxide conductive glass and adopt an ultrasonic bath to remove the residue on the ...

Embodiment 3

[0013] Example 3: 1) First, cut the fluorine-doped tin oxide conductive glass (FTO) into a size of 1.5cm × 2.0, and then ultrasonically clean it with acetone, ethanol and deionized water and dry it, then put the fluorine-doped tin oxide conductive glass Put it into the polytetrafluoroethylene lining of the stainless steel autoclave, mix toluene, butyl titanate and concentrated hydrochloric acid with a concentration of 36-38% according to the volume ratio of 10:0.8:1.0, and then add it to the polytetrafluoroethylene lining of the stainless steel autoclave Seal the autoclave in an ethylene liner; 2) Next, transfer the sealed autoclave to a constant temperature device, keep it warm for 10 hours at a constant temperature of 180°C, and carry out a solvothermal reaction. After the reaction is completed, naturally cool to room temperature ; 3) Then, open the autoclave cover, take out the fluorine-doped tin oxide conductive glass, fully rinse the residue on the conductive surface of th...

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Abstract

The invention relates to a low-temperature preparation method of a highly oriented single crystal titanium dioxide nanowire array film, which utilizes improved low-temperature heterogeneous phase solvent thermal technology to be combined with interface chemical reaction, and leads the single crystal titanium dioxide nanowire array film with high orientation, good crystallization and adjustable size to be directly deposited on the surface of transparent conductive glass in a large area. The one-dimensional nano-structure array film grows vertically to the surface of the conductive glass, can be taken as a nano-electrode to be assembled into a novel nano device, especially can be directly taken as a photoelectrode of a novel solar battery for use, improves the transmission rate of photoelectrons, and reduces the recombination velocity of the photoelectrons. The preparation process of the materials is simple, environment-friendly and low in cost, and the preparation method is easy for industrialized popularization and use, and is beneficial to developing and utilizing solar energy with low cost.

Description

technical field [0001] The invention relates to a low-temperature preparation method of a semiconductor nanowire array film, in particular to a low-temperature preparation method of a highly oriented single crystal titanium dioxide nanowire array film on the surface of a transparent conductive glass, which is suitable for photoelectrodes in solar cells. Background technique [0002] With the increasingly severe energy and environmental problems worldwide, it is urgent to develop a new energy that is easy to obtain and clean and environmentally friendly. Solar energy is just such a new energy. There are various forms of developing and utilizing solar energy, and solar cells are one of the main forms. Traditional solar cells are mainly made of silicon-based semiconductor materials. The photoelectric conversion efficiency of this type of cell is high (up to about 18%), but the purity of the material is very high, the material preparation process is complicated, and the cost is ...

Claims

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Application Information

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IPC IPC(8): C30B7/10C30B29/16H01L31/0224
Inventor 阙文修贾巧英
Owner XI AN JIAOTONG UNIV
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