A multi-layered nano piezoelectric device and its preparation method

Abstract

The invention discloses a multi-layered nano piezoelectric device, which is a rectangular structure formed by stacking at least five layers, which are gallium nitride-polystyrene matrix layer I and n-type silver-doped zinc oxide nanowire array layer in sequence. Ⅰ. Five-layer lamination of nitrogen-doped graphene layer, n-type silver-doped zinc oxide nanowire array layer II and gallium nitride-polystyrene matrix layer II; in the gallium nitride-polystyrene matrix layer Ⅰ One side of the nitrogen-doped graphene layer is connected to an indium tin oxide electrode I, one side of the nitrogen-doped graphene layer is connected to a graphite electrode, and one side of the gallium nitride-polystyrene matrix layer II is connected to an indium tin oxide electrode II. The piezoelectric device of the present invention has relatively high current and voltage, is small in size, can be used in series and parallel and can realize stable output, can be widely used in daily life, and is a passive and environment-friendly piezoelectric device. The invention also discloses a preparation method of a multi-stacked nanometer piezoelectric device.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric devices, and relates to a multi-layer nano piezoelectric device and a preparation method thereof. Background technique [0002] Energy and environmental protection are the most concerned issues in today's society. As an environmentally friendly functional material that can convert mechanical energy to electrical energy, piezoelectric materials are playing an increasingly important role in the field of high-tech industrial production. With the development of science and technology, the application of ultra-large-scale integrated circuits, the miniaturization and portability of electronic devices are becoming a development trend, and the matching smaller batteries and generators are getting more and more attention. The nano-piezoelectric material has the advantages of simple engineering installation, wide application range, environmental protection, etc., and is becoming a research hotspot. P...

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Problems solved by technology

The disadvantage of this patent is that the pulse current is generated, which is not stable, and the apparent d 33 also smaller

Piezoelectric materials also have the following problems: 1. There are few types of piezoelectric materials, most of which are ceramic piezoelectric materials, which are fragile and unstable in quality; 2. They are greatly affected by the vibration frequency, the power production efficiency is not high, and the price is expensive, etc.

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