Method for preparing electromechanical transduction element based on potassium-sodium niobate lead-free piezoelectric nanofibers

A technology of potassium sodium niobate and nanofibers, applied in piezoelectric/electrostrictive/magnetostrictive devices, electrical components, nanotechnology for sensing, etc., can solve the constraints of poor repeatability and unfavorable nanogenerator construction , the limited length of nanorods, etc.

Inactive Publication Date: 2012-10-24
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the synthesis methods of KNN one-dimensional nanomaterials mainly include hydrothermal method and molten salt method. Although the obtained nanorods have a single crystal structure, the length of the nanorods is limited, which is not conducive to the construction of nanogenerators, and the material yield is low and the repeatability is poor. Restricts mass production of components

Method used

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  • Method for preparing electromechanical transduction element based on potassium-sodium niobate lead-free piezoelectric nanofibers
  • Method for preparing electromechanical transduction element based on potassium-sodium niobate lead-free piezoelectric nanofibers
  • Method for preparing electromechanical transduction element based on potassium-sodium niobate lead-free piezoelectric nanofibers

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Example 1: Preparation of an electromechanical transduction element based on potassium sodium niobate lead-free piezoelectric nanofibers

[0097] The steps of the preparation method are as follows:

[0098] Step A: Electrode Preparation

[0099] 1) Photolithography mask production: use the L-edit software sold by the American Tanner company to design the predetermined pattern of the interdigitated electrodes, and use the photolithography mask produced by Nanjing Qingwei Electronics Technology Co., Ltd., in which a single interdigitated electrode pattern The size is 1cm×1cm, the width of the interdigitated stripes is 10 μm and the spacing is 200 μm, and the number of interdigitated stripes is 20. The interdigitated electrode patterns are evenly and repeatedly arranged in a square with a side length of 70 mm to ensure that adjacent interdigitated electrodes The pattern spacing is not less than 2mm;

[0100] 2) Substrate cleaning: ultrasonically clean a P100 polished sil...

Embodiment 2

[0122] Example 2: Preparation of an electromechanical transduction element based on potassium sodium niobate lead-free piezoelectric nanofibers

[0123] The steps of the preparation method are as follows:

[0124] Step A: Electrode Preparation

[0125] 1) Photolithography mask production: use the L-edit software sold by American Tanner Company to design the predetermined pattern of interdigitated electrodes, and use Nanjing Qingwei Electronics Technology Co., Ltd. to order a photolithography mask, in which a single interdigitated electrode pattern The size is 1cm×1cm, the width of the interdigitated stripes is 20 μm and the spacing is 400 μm, and the number of interdigitated stripes is 50. The interdigitated electrode patterns are evenly and repeatedly arranged in a square with a side length of 70 mm to ensure that adjacent interdigitated electrodes The pattern spacing is not less than 2mm;

[0126] 2) Substrate cleaning: A P100 polished silicon oxide wafer with a diameter o...

Embodiment 3

[0148] Example 3: Preparation of an electromechanical transduction element based on potassium sodium niobate lead-free piezoelectric nanofibers

[0149] The steps of the preparation method are as follows:

[0150] Step A: Electrode Preparation

[0151] 1) Photolithography mask production: use the L-edit software sold by American Tanner Company to design the predetermined pattern of interdigitated electrodes, and use Nanjing Qingwei Electronics Technology Co., Ltd. to order a photolithography mask, in which a single interdigitated electrode pattern The size is 1cm×1cm, the width of the interdigitated stripes is 30 μm and the spacing is 600 μm, and the number of interdigitated stripes is 40. The interdigitated electrode patterns are evenly and repeatedly arranged in a square with a side length of 70 mm to ensure that adjacent interdigitated electrodes The pattern spacing is not less than 2mm;

[0152] 2) Substrate cleaning: A P100 polished silicon oxide wafer with a diameter o...

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Abstract

The invention relates to a method for preparing an electromechanical transduction element based on potassium-sodium niobate lead-free piezoelectric nanofibers. The method comprises the steps of preparing an electrode, preparing a potassium-sodium niobate precursor, adopting an electrostatic spinning method to preparing potassium-sodium niobate nanofibers, forming and packaging a potassium-sodium niobate nanogenerator and the like. By means of the method, large-area preparation of potassium-sodium niobate nanofibers is achieved, and the potassium-sodium niobate nanofibers are used for forming the electromechanical transduction element, thereby ensuring the element to have high power output capability and avoiding poison to environment and human body.

Description

【Technical field】 [0001] The invention belongs to the technical field of lead-free piezoelectric nanometer materials and devices. More specifically, the invention relates to a preparation method of an electromechanical conversion element based on potassium sodium niobate lead-free piezoelectric nanofibers. 【Background technique】 [0002] Piezoelectric materials have unique electromechanical energy conversion properties and have been widely used in transducers, actuators, and sensors in recent years. With the development trend of device size miniaturization and integration, one-dimensional nanomaterials have received extensive attention due to their unique physical and chemical properties. Utilizing the electromechanical conversion characteristics of one-dimensional piezoelectric nanomaterials, the collection of tiny mechanical vibration energy in the environment and its conversion into electrical energy can be realized, which promotes the development and application of self-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/24C04B35/495B82Y15/00
Inventor 胡永明王威王钊顾豪爽熊娟陈侃松
Owner HUBEI UNIV
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