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A method for preparing inorganic-organic flexible composite materials with magnetoelectric coupling properties

A composite material, magnetoelectric coupling technology, applied in material selection, metal material coating process, electromagnetic device manufacturing/processing, etc., to achieve the effects of good pressure resistance, easy implementation, and simple operation

Active Publication Date: 2020-11-10
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing an inorganic-organic flexible composite material with magnetoelectric coupling performance, which solves the existing problems

Method used

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  • A method for preparing inorganic-organic flexible composite materials with magnetoelectric coupling properties
  • A method for preparing inorganic-organic flexible composite materials with magnetoelectric coupling properties

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A method for preparing an inorganic-organic composite flexible multiferroic material, comprising the following steps:

[0033] a. Slide preparation:

[0034] Clean the glass slides required for the experiment in the following order: ultrasonically clean with acetone for 10 minutes, pour out the acetone, wash with absolute ethanol for 10 minutes, pour out the absolute ethanol, and repeat ultrasonic cleaning with deionized water for 3 times, each 5 minutes each time. Finally, dry it with nitrogen gas.

[0035] b. Disperse PVDF-TrFE powder in dimethylformamide at a mass ratio of 1:10, and filter the PVDF solution after magnetic stirring for 8 hours. The mass is PVDF-TrFE powder mass 1% Fe 3 o 4 After the nanoparticles were dispersed in the PVDF solution, ultrasonic oscillation was continued for 4 hours, and the solution was placed in a vacuum pump to evacuate for 5 minutes.

[0036] c. Evenly drop the solution evenly dispersed by ultrasonic vibration on the glass slid...

Embodiment 2

[0041] A method for preparing an inorganic-organic composite flexible multiferroic material, comprising the following steps:

[0042] a. Slide preparation:

[0043]Clean the glass slides required for the experiment in the following order: ultrasonically clean with acetone for 10 minutes, pour out the acetone, wash with absolute ethanol for 10 minutes, pour out the absolute ethanol, and repeat ultrasonic cleaning with deionized water for 3 times, each 5 minutes each time. Finally, dry it with nitrogen gas.

[0044] b. Disperse PVDF-TrFE powder in dimethylformamide at a mass ratio of 1:10, and filter the PVDF solution after magnetic stirring for 8 hours. The mass is PVDF mass 10% Fe 3 o 4 After the nanoparticles were dispersed in the PVDF solution, ultrasonic oscillation was continued for 4 hours, and the solution was placed in a vacuum pump to evacuate for 5 minutes.

[0045] c. Evenly drop the solution evenly dispersed by ultrasonic vibration on the glass slide, remove th...

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Abstract

A method for preparing an inorganic-organic flexible composite material with magnetoelectric coupling performance provided by the invention comprises the following steps: step 1, dispersing PVDF-TrFE powder in dimethylformamide at a mass ratio of 1:10 to obtain PVDF solution; step 2, filter the PVDF solution prepared in step 1 to obtain the filtered PVDF solution, and Fe 3 o 4 Nanoparticles are dispersed in the filtered PVDF solution to obtain a mixed solution; step 3, the mixed solution obtained in step 2 is uniformly drip-coated on a glass slide, then dried at 135°C for 1.5 hours, and then heated to 142°C- After 145°C, take it out and cool it to 0°C to obtain a flexible multiferroic material film; Step 4, adjust the magnetic properties of the flexible multiferroic material film obtained in Step 3 by applying an external voltage to obtain a flexible multiferroic composite material. The method of the invention is simple to operate and easy to implement, and the prepared material has better pressure resistance than inorganic multiferroic materials and flexibility that inorganic materials do not have.

Description

technical field [0001] The invention belongs to the technical field of semiconductors, and in particular relates to a method for preparing an inorganic-organic flexible composite material with magnetoelectric coupling performance. Background technique [0002] With the rapid development of microelectronics and semiconductor technology, three-dimensional, miniaturized, adjustable and multifunctional has become a new trend in the design and development of electronic components. Exploring and developing related new intelligent multiscale materials, especially multiferroic materials that integrate ferroelectricity and ferromagnetism, which permeate in various fields of modern technology, has become a research hotspot in the past ten years. Multiferroic materials not only have two or three single ferrotypes (such as ferroelectricity, ferromagnetism and ferroelasticity), but also can produce some new functions through the coupling and synergy between ferroelectricity and ferromagn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L43/10H01L43/12C23C14/20C23C14/35H10N50/01
CPCC23C14/205C23C14/35H10N50/01H10N50/85
Inventor 张易军唐卓华张洁刘明任巍叶作光
Owner XI AN JIAOTONG UNIV
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