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Investigation on Acoustic Properties of Carbon Nanotubes and Its Application in Acoustic Microsystem

Abstract

碳纳米管具有优异的机械、电学和热学等特性,将碳纳米管集成到微纳机械电子系统(MEMS/NEMS)中,可以用于新型微纳传感器的开发,以提高传感器的灵敏度,缩小体积,降低能耗,从而应用到一些特殊环境中。 研究碳纳米管的物理特性是将之应用到工程实际的前提,本文着重从理论上研究碳纳米管的声波传播特性,在此基础上提出并分析了碳纳米管在声学微系统上的潜在应用。论文主要贡献与具体创新点如下: (1)研究碳纳米管中的声波传播特性,建立了碳纳米管中声波传播的解析模型,探讨不同尺寸参数情况下碳纳米管的声波频率,分析结果表明:对于长度为数微米的单壁或双壁碳纳米管,它们能够传播的声波频率在10GHz内,对...Since the discovery of carbon nanotubes (CNTs), more and more efforts are being made to integrate carbon nanotubes into micro and nanoelectromechanical systems (MEMS/NEMS), due to the fact that CNTs have small size, low density, high stiffness and strength, as well as excellent electronic properties. Previous studies of the mechanical properties of CNTs concentrated on their static properties for ...学位:工学博士院系专业:物理与机电工程学院机电工程系_测试计量技术及仪器学号:B20042900

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