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Preparing method for micro-nano organic ferroelectric particles

The technology of organic iron and electric particles is applied in the field of preparation of micro-nano-sized organic ferroelectric particles, which can solve the problems of corrosion, difficult processing and preparation of micro-nano-scale ferroelectric polymer structures, and achieve the effect of simple preparation process.

Inactive Publication Date: 2014-01-01
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since ferroelectric polymer materials are easily corroded by organic solvents such as acetone, it is difficult to realize the processing and preparation of micro-nano scale ferroelectric polymer structures by photolithography in the microelectronics industry.

Method used

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  • Preparing method for micro-nano organic ferroelectric particles
  • Preparing method for micro-nano organic ferroelectric particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] This example illustrates that the adjustment of the particle size of organic ferroelectric particles can be realized by adjusting the volume ratio of the two solvents in the mixed solution. Proceed as follows:

[0018] 1) Prepare 10ml of butanone solution of P(VDF-TrFE) ferroelectric polymer, the mass concentration is 1.0%.

[0019] 2) Measure 2ml of methyl ethyl ketone solution and place them in three clean beakers respectively. Select acetone as the second solvent. The volume ratios of acetone are 1:6, 1:15 and 1:55, respectively. Sonicate for 5 min to ensure that the solvent is well mixed.

[0020] 3) The mixed solution was drip-coated on a clean glass slide, and after the solvent was completely evaporated, the geometric structure of the formed ferroelectric particles was observed with an atomic force microscope.

[0021] figure 1 The atomic force microscope images showed that with the increase of acetone content in the mixed solution, the particle size of organi...

Embodiment 2

[0023] This example illustrates that both deionized water and ethanol can be used as the second solvent to realize the preparation of micro-nano-sized ferroelectric particles. Proceed as follows:

[0024] 1) Prepare 10ml of butanone solution of P(VDF-TrFE) ferroelectric polymer, the mass concentration is 1.0%.

[0025] 2) Measure 2ml of methyl ethyl ketone solution and place them in two clean beakers, and select ethanol and deionized water as the second solvent. Add deionized water (butanone:water=1:0.8) and ethanol (butanone:ethanol=1:20) into the two beakers respectively and mix well.

[0026] 3) The mixed solution was drip-coated on a clean glass slide, and after the solvent was completely evaporated, the geometric structure of the formed ferroelectric particles was observed with an atomic force microscope.

[0027] figure 2 The atomic force microscope image shows that the ferroelectric particles obtained from the butanone / ethanol mixed solution have a particle size of ...

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Abstract

The invention relates to a preparing method for micro-nano organic ferroelectric particles. The method includes the following steps: adding second solvents (water, acetone and ethanol) of appropriate amount in a methyl ethyl ketone solution of a ferroelectric polymer, and uniformly mixing; coating the surface of a clean substrate with the mixed solution; obtaining the micro-nano ferroelectric polymer particles after the solvents are evaporated. Through adjusting the mass concentration of the ferroelectric polymer solution and selecting the second solvents, the ferroelectric particles with different particle diameters can be obtained; according to the invention, the preparing technology is simple, the micro-nano ferroelectric polymer particles can be prepared through mixing the two kinds of solvents, and the particle diameter of the micro-nano ferroelectric polymer particles can be adjusted and controlled through adjusting the volume ratio of the two kinds of solvents and the mass concentration of the ferroelectric polymer particles.

Description

technical field [0001] The invention relates to a method for preparing micro-nano-sized organic ferroelectric particles. Add an appropriate amount of the second solvent (water, acetone, ethanol) to the methyl ethyl ketone solution of the ferroelectric polymer and mix it evenly. The mixed solution is coated on the surface of the clean substrate. After the solvent evaporates, the micro-nano-sized iron can be obtained. Electropolymer particles. Background technique [0002] Ferroelectric polymers have pyroelectric, piezoelectric and ferroelectric properties, and can be used to prepare micro-nano-scale infrared detectors, piezoelectric drivers, sensors, etc. However, since ferroelectric polymer materials are easily corroded by organic solvents such as acetone, it is generally difficult to realize the processing and preparation of micro-nanoscale ferroelectric polymer structures by photolithography in the microelectronics industry. Finding a simple and feasible preparation meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08J3/09
Inventor 朱国栋
Owner FUDAN UNIV
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