一种弹性压电纳米膜,具有双重降噪,用于高质量的带通声学
Jialin Zhang1, Yanjun Liu2, Peiyi Wu3
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China.
Nature communications
|October 16, 2024
概括
研究人员开发了一种新的,超薄的聚合物纳米膜,使用水合浮化超扩散. 这种膜通过减少噪音和过信号来增强声电设备,显示出听力修复的希望.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 声学 声学 在声学上.
背景情况:
- 聚合物压电材料为灵活的声电设备提供高电机能转换 (HEEC).
- 制造薄,有序和机械坚固的压电聚合物膜存在重大挑战.
- 在声电转换中有效的噪声管理对于设备性能至关重要.
研究的目的:
- 开发一种用于聚合物压电纳米膜的新型制造方法.
- 为了创建一个超薄,机械强大的纳米膜,有秩序的晶体相.
- 在声电应用中解决降噪和信号过问题.
主要方法:
- 在水面上使用水浮动超散布技术.
- 一个335纳米厚的弹性压电纳米膜 (EPN) 的制造.
- 导电稳定的压电层与两个弹性阻尼层的集成.
主要成果:
- 在聚合物纳米膜中实现了有序的晶体相和亚纳米结构.
- EPN 显示了环境背景噪声的降低和虚假电路噪声的抑制.
- 在人类语音频率内演示了声学信号的带程过.
结论:
- 这种气浮动超扩散方法可以高效地制造先进的聚合物压电纳米膜.
- 开发的 EPN 显示出卓越的噪音管理和信号过能力.
- 这项技术具有在听觉系统维修和各种声电领域的应用方面的巨大潜力.
更多相关视频
07:23Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics
Published on: February 5, 2020
5.7K
10:39Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
Published on: August 5, 2020
6.8K
相关概念视频
Capacitor With A Dielectric
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
MOS Capacitor
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The Electrical Double Layer
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
