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Method for preparing perovskite ferroelectric nano tube array

A technology of nanotube array and perovskite, which is applied in the field of preparation of perovskite ferroelectric nanotube array, can solve the problems of difficult preparation process, complex equipment and operation, etc. simple effect

Inactive Publication Date: 2013-06-05
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The direct immersion method is largely affected by the concentration of the solution, and it is difficult to master in the preparation process; while the electrophoresis method has the disadvantages of complicated equipment and operation

Method used

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  • Method for preparing perovskite ferroelectric nano tube array
  • Method for preparing perovskite ferroelectric nano tube array
  • Method for preparing perovskite ferroelectric nano tube array

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0020] This experiment is to prepare (A x B 1-x )TiO 3 (A=Pb, B=Sr, x=0.5) ferroelectric nanotube array. Specific steps are as follows:

[0021] (1) Preparation of precursor solution: strontium lead titanate (Pb x Sr 1-x )TiO 3 Preparation of precursor solution. According to (Pb x Sr 1-x )TiO 3 (x=0.5) chemical formula, due to the volatility of lead, the lead acetate content is excessive by 10%, and the lead acetate is weighed according to the element molar ratio Pb:Sr:Ti=0.55:0.5:1, strontium acetate and butyl titanate are put into the container respectively , Dissolve lead acetate with glacial acetic acid to obtain solution ①, dissolve strontium acetate with ethylene glycol methyl ether to obtain solution ②, mix the two solutions ① and ② and continue stirring, and add butyl titanate obtained by molar ratio during the stirring process The quality of the ester and 0.1 mol / liter of acetylacetone as a stabilizer were heated to 70° C. and stirred continuously for 3 hour...

Embodiment 2

[0023] This experiment is to prepare (A x B 1-x )TiO 3 (A=Pb, B=Sr, x=0.9) ferroelectric nanotube array. Specific steps are as follows:

[0024] (1) Preparation of precursor solution: strontium lead titanate (Pb x Sr 1-x )TiO 3 Preparation of precursor solution. According to (Pb x Sr 1-x )TiO 3 (x=0.9) chemical formula, due to the volatility of lead, the lead acetate content is excessive by 10%, and the lead acetate is weighed according to the element molar ratio Pb:Sr:Ti=0.99:0.1:1, strontium acetate and butyl titanate are put into the container respectively , Dissolve lead acetate with glacial acetic acid to obtain solution ①, dissolve strontium acetate with ethylene glycol methyl ether to obtain solution ②, mix the two solutions ① and ② and continue stirring, and add butyl titanate obtained by molar ratio during the stirring process The quality of the ester and 0.2 mol / liter of acetylacetone as a stabilizer were heated to 70° C. and stirred continuously for 2 hour...

Embodiment 3

[0026] This experiment is to prepare (A x B 1-x )TiO 3 (A=Ba, B=Sr, x=0.1) ferroelectric nanotube array. Specific steps are as follows:

[0027] (1) Preparation of precursor solution: strontium lead titanate (Ba x Sr 1-x )TiO 3 Preparation of precursor solution. According to (Ba x Sr 1-x )TiO 3(x=0.1) chemical formula, weigh barium acetate according to element molar ratio Ba:Sr:Ti=0.1:0.9:1, put strontium acetate and butyl titanate into containers respectively, dissolve barium acetate with glacial acetic acid to obtain solution ①, Dissolve strontium acetate in ethylene glycol methyl ether to obtain solution ②, mix the two solutions ① and ② and continue to stir, and add the mass of butyl titanate obtained in molar ratio and 0.15 mol / liter of acetyl Acetone was used as a stabilizer, heated to 70°C and stirred continuously for 2 hours to obtain a transparent precursor solution, and the solution was filtered with filter paper. (2) The nanotube arrays were prepared by sp...

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Abstract

The invention discloses a method for preparing a perovskite ferroelectric nano tube array. The method comprises the following steps of: preparing a precursor solution; preparing a nano tube array by using an alumina template and adopting a glue equalizer spinning process; and dripping the precursor solution onto the alumina template, properly regulating the rotating speed and the rotating time byadopting the glue equalizer spinning process, and pouring the solution into nano pores of the alumina template so as to obtain the perovskite ferroelectric nano tube array. The method has wide application prospect in the fields of high-density one-dimensional ferroelectric memories, drivers, micro-electromechanical systems and the like; and the raw materials and the equipment used in the method are cheaper, and the adopted technology is simple and convenient and has a short period.

Description

technical field [0001] The invention relates to a preparation method of a perovskite ferroelectric nanotube array. Background technique [0002] Due to their excellent piezoelectric, pyroelectric, ferroelectric, electro-optic and nonlinear optical properties, ferroelectric materials are widely used in piezoelectric motors, pyroelectric detector arrays, ferroelectric memories, ferroelectric optics and ferroelectric integrated optics. It has a wide range of applications and has received great attention from the scientific community. With the advancement of science and technology and the development of miniaturization of device size, the synthesis and application of ferroelectric one-dimensional nanomaterials has gradually become a focus of attention. At the same time, due to the size effect, ferroelectric materials with nanostructures have different properties from bulk materials and thin films, especially since Naumov and Urban predicted that ferroelectric one-dimensional na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/472C04B35/626
Inventor 蒋艳平唐新桂刘秋香
Owner GUANGDONG UNIV OF TECH