Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for preparing piezoelectric nanogenerators based on direct writing method of piezoelectric nanorods

A technology of nanogenerators and nanorods, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve problems such as time-consuming, expensive, and complicated steps

Active Publication Date: 2017-11-03
INST OF CHEM CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing methods are template-assisted methods. The templates used are zinc oxide nanorod arrays, polystyrene nanosphere arrays and photolithography templates. The steps of this method are complicated, time-consuming and expensive.
In order to improve the performance of piezoelectric nanogenerators, researchers also prepared aligned nanorod arrays by epitaxial growth, electrospinning and other methods, but this method is only applicable to limited materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for preparing piezoelectric nanogenerators based on direct writing method of piezoelectric nanorods
  • A method for preparing piezoelectric nanogenerators based on direct writing method of piezoelectric nanorods
  • A method for preparing piezoelectric nanogenerators based on direct writing method of piezoelectric nanorods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Utilize vacuum deposition method to prepare the polyethylene terephthalate film covered with gold as the lower electrode, the polyimide film covered with gold as the upper electrode, the area of ​​the upper and lower electrodes is 4cm*2cm;

[0034] (2) Preparation of ink: mix potassium sodium niobate nanorods with a length of about 20 μm with polydimethylsiloxane prepolymer and polydimethylsiloxane curing agent at a mass ratio of 10:1, and then Put it in an ice-water bath and stir at a speed of 800rpm for 0.5h to mix evenly; the mass fraction of potassium sodium niobate nanorods in the ink is 40%; the specific dosage is 4.03g potassium sodium niobate nanorods, 5.50g polydimethylsiloxane Prepolymer and 0.55g polydimethylsiloxane curing agent;

[0035] (3) Take 3g of ink and inject it into the ink cartridge of the direct writing printer, and select a nozzle with a diameter of 200 μm; fix the lower electrode on the printing platform, with the side where the metal is de...

Embodiment 2

[0040] (1) Utilize vacuum deposition method to prepare the polyethylene terephthalate film covered with gold as the lower electrode, the polyimide film covered with gold as the upper electrode, the area of ​​the upper and lower electrodes is 4cm*2cm;

[0041] (2) Preparation of ink: mix potassium sodium niobate nanorods with a length of about 20 μm with polydimethylsiloxane prepolymer and polydimethylsiloxane curing agent at a mass ratio of 10:1, and then Put it in an ice-water bath and stir at a speed of 800rpm for 0.5h to mix evenly; the mass fraction of potassium sodium niobate nanorods in the ink is 40%; the specific dosage is 4.03g potassium sodium niobate nanorods, 5.50g polydimethylsiloxane Prepolymer and 0.55g polydimethylsiloxane curing agent;

[0042] (3) Take 3g of ink and inject it into the ink cartridge of the direct writing printer, and select a nozzle with a diameter of 200 μm; fix the lower electrode on the printing platform, with the side where the metal is de...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for preparing a piezoelectric nano generator based on a direct writing method of a piezoelectric nanorod. According to the method, patterned and internal piezoelectric nanorod orientated piezoelectric layers can be obtained concurrently, wherein the patterns can be designed optionally, and the orientation is formed by shearing force on ink from the side wall of a sprayer. The method is simple, rapid, capable of lowering cost and capable of preparing the patterned and internal piezoelectric nanorod orientated piezoelectric nano generators in large-scale manner; and in addition, the generator has relatively high output voltage.

Description

technical field [0001] The invention belongs to the field of piezoelectric nanogenerators, in particular to a method for preparing piezoelectric nanogenerators based on the direct writing method of piezoelectric nanorods. Background technique [0002] As the energy crisis continues to intensify, obtaining energy from sustainable resources in the environment has become an important trend in energy development. Nanogenerators have attracted increasing attention from researchers due to their unique properties of converting ubiquitous mechanical energy into electrical energy. [0003] In order to obtain high-performance nanogenerators, researchers try to prepare piezoelectric nanogenerators with patterned piezoelectric layers. The patterned structure leads to stress localization effects, and the effective strain can greatly improve the piezoelectric performance. Most of the existing methods are template-assisted methods. The templates used are zinc oxide nanorod arrays, polyst...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/22
Inventor 高萌李立宏宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI