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Heterojunction direct-current piezoelectric nano generator and preparation method thereof

A nanogenerator, heterojunction technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, etc. Solving problems such as poor performance of piezoelectric nanogenerators

Pending Publication Date: 2019-12-03
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a heterojunction DC piezoelectric nanogenerator and its preparation method, aiming to solve the technical problem of poor performance of the piezoelectric nanogenerator in the prior art

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  • Heterojunction direct-current piezoelectric nano generator and preparation method thereof
  • Heterojunction direct-current piezoelectric nano generator and preparation method thereof
  • Heterojunction direct-current piezoelectric nano generator and preparation method thereof

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Embodiment Construction

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] On the one hand, an embodiment of the present invention provides a heterojunction direct-current piezoelectric nanogenerator, including an upper electrode and a lower electrode, and the heterojunction direct-current piezoelectric nanogenerator uses polydimethylsiloxane (PolyDiMethyl Siloxane, PDMS) for encapsulation. Wherein, the lower electrode is an N-type semiconductor, and the piezoelectric unit of the lower electrode is formed by a semiconductor piezoelectric material in the form of a nanostructure, and the semiconductor piezoelectric material is zinc oxide, and the upper electr...

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Abstract

The invention belongs to the technical field of nano generators, and discloses a heterojunction direct-current piezoelectric nano generator and a preparation method thereof. In the heterojunction direct-current piezoelectric nano generator, a rectification effect exists between an upper electrode prepared from silicon and a lower electrode with a zinc oxide nanowire array, so that the neutralization of the piezoelectric potential in the interior can be effectively achieved and the piezoelectric potentials are eliminated, when a piezoelectric unit of the upper electrode is in contact with the positive potential region of the zinc oxide nanowire array of the lower electrode, a current can be suppressed, and when the piezoelectric unit of the upper electrode is in contact with the negative potential region of the zinc oxide nanowire array of the lower electrode, the current is released, and macroscopically, a stable one-way direct current is output, so that the concept of the heterojunction direct-current piezoelectric nano-generator is effectively achieved, and a new thought is opened up for integration of the direct-current piezoelectric nano-generator on a silicon substrate.

Description

technical field [0001] The invention relates to the technical field of nanogenerators, in particular to a nanogenerator and a preparation method thereof. Background technique [0002] At present, the use of organic polymer materials and nanomaterials can realize the function of flexible nanogenerators, and all indicators can reach a high level. [0003] However, the current piezoelectric nanogenerator has a piezoelectric potential inside, and cannot output a stable unidirectional direct current, and its performance is not good. Contents of the invention [0004] The main purpose of the present invention is to provide a heterojunction DC piezoelectric nanogenerator and its preparation method, aiming to solve the technical problem of poor performance of the piezoelectric nanogenerator in the prior art. [0005] In order to achieve the above object, the first aspect of the present invention provides a heterojunction direct current piezoelectric nanogenerator, which includes ...

Claims

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Application Information

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IPC IPC(8): H01L41/08H01L41/113H01L41/27B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H10N30/00H10N30/30H10N30/05
Inventor 朱朋莉余雪城胡友根张愿孙蓉
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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