A kind of composite flexible nanogenerator and preparation method thereof

A nanogenerator and flexible technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, circuits, electrical components, etc., can solve the problems of large space occupation, low energy conversion rate, time limit, etc., and achieve effective area Improvement, simple preparation process, and optimized output performance

Inactive Publication Date: 2018-07-27
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, photovoltaic technology also has great disadvantages such as taking up a large space, being limited by time, and its energy conversion rate is very low.

Method used

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  • A kind of composite flexible nanogenerator and preparation method thereof
  • A kind of composite flexible nanogenerator and preparation method thereof
  • A kind of composite flexible nanogenerator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh PMN-PT single crystal nanowires and PVDF powder according to the ratio of 10PMN-PT / 90PVDF, dissolve the two raw materials in 20ml of DMA, and alternately act on magnetic stirring and ultrasonic dispersion for 4 hours until the solution is evenly mixed; Pour the solution into a petri dish with a diameter of 10 cm and place it horizontally for 10 minutes to spread the solution evenly on the petri dish; keep the solution in a horizontal state and move it into an oven, and dry it at 60°C for 12 hours to completely evaporate the liquid; remove the obtained film from the culture Separate the bottom of the dish and form at 120°C for 2 hours under a pressure of 40N; use electron beam evaporation to prepare electrodes at both ends of the film and cut the film material into a square with a side length of 1 cm; polarize at 710V and a temperature of 110°C for 3 hours to obtain Novel flexible nanogenerators.

[0025] The new flexible nanogenerator produced in this example is m...

Embodiment 2

[0027] Weigh PMN-PT single crystal nanowires and PVDF powder according to the ratio of 20PMN-PT / 80PVDF, dissolve the two raw materials in 20ml DMA, and alternately act on magnetic stirring and ultrasonic dispersion for 4h until the solution is uniformly mixed; the uniformly mixed Pour the solution into a petri dish with a diameter of 10 cm and place it horizontally for 10 minutes to spread the solution evenly on the petri dish; keep the solution in a horizontal state and move it into an oven, and dry it at 60°C for 12 hours to completely evaporate the liquid; remove the obtained film from the petri dish The bottom is separated and molded at 120°C for 2 hours under a pressure of 40N; Electrodes are prepared at both ends of the film by electron beam evaporation and the film material is cut into a square with a side length of 1cm; Polarized at 710V and 110°C for 3 hours, the new type can be obtained. Flexible nanogenerators.

[0028] The new flexible nanogenerator produced in thi...

Embodiment 3

[0030] Weigh PMN-PT single crystal nanowires and PVDF powder according to the ratio of 25PMN-PT / 75PVDF, dissolve the two raw materials in 20ml DMA, and alternately act on magnetic stirring and ultrasonic dispersion for 4h until the solution is uniformly mixed; the uniformly mixed Pour the solution into a petri dish with a diameter of 10 cm and place it horizontally for 10 minutes to spread the solution evenly on the petri dish; keep the solution in a horizontal state and move it into an oven, and dry it at 60°C for 12 hours to completely evaporate the liquid; remove the obtained film from the petri dish The bottom is separated and molded at 120°C for 2 hours under a pressure of 40N; Electrodes are prepared at both ends of the film by electron beam evaporation and the film material is cut into a square with a side length of 1cm; Polarized at 710V and 110°C for 3 hours, the new type can be obtained. Flexible nanogenerators.

[0031] The new flexible nanogenerator produced in thi...

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Abstract

The invention belongs to the technical field of functional materials and device manufacturing, and in particular relates to a PMN‑PT / PVDF composite flexible nanometer generator. The present invention adjusts the ratio of PMN-PT single crystal nanowires and PVDF by using PMN-PT single crystal nanowires and polymer piezoelectric material PVDF whose composition is located in the quasi-isomorphic phase boundary (MPB) as raw materials, and adopts a similar casting method The thin film forming method is used to prepare PMN‑PT / PVDF composite flexible nanogenerators. The flexible nanometer generator prepared by the method of the invention can be used to collect mechanical vibration energy, provide energy for nanometer devices or nanosystems, and develop nanometer passive devices. At the same time, the PMN-PT / PVDF nanometer generator of the present invention has simple preparation process, superior performance, low raw material cost, low production cost and wide application range.

Description

Technical field: [0001] The invention relates to a technology for preparing a flexible nanogenerator by using a composite piezoelectric material composed of a single crystal nano piezoelectric material and a polymer piezoelectric material, wherein the single crystal piezoelectric material is composed of x(Pb(Mg 1 / 3 Nb 2 / 3 )O 3 )-1-x(PbTiO 3 ) (PMN-PT) quasi-isotype phase boundary (x = 0.65) near the single crystal nanometer material, polymer piezoelectric material is polyvinylidene fluoride (PVDF), belongs to the technical field of functional materials and device manufacturing. Background technique [0002] Smart wearable devices refer to the integration of intelligent mobile devices or some functions into traditional wearable devices, so as to realize the intelligence of wearable devices. In the current electronic product market, wearable devices have become a new hot spot. With the continuous development of electronic information technology and market demand, the futur...

Claims

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Application Information

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IPC IPC(8): H01L41/113H01L41/18H01L41/193H01L41/22
CPCH10N30/308H10N30/852H10N30/857H10N30/01H10N30/704
Inventor 罗文博何恺徐东白晓园帅垚吴传贵张万里
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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