SGER: A Nanoelectromechanical Design for Carbon Nanotube-Based Memory Cells at Finite Temperatures

SGER：有限温度下基于碳纳米管的存储单元的纳米机电设计

• 批准号: 0630153
• 负责人: Shaoping Xiao
• 金额: --
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0630153&HistoricalAwards=false
• 关键词: SGER; Nanoelectromechanical; Design; Carbon; Nanotube

(Shaoping Xiao)SGER: A Nanoelectromechanical Design for Carbon Nanotube-Based Memory Cells at Finite TemperaturesThe objective of this proposal is analyzing the feasibility of a nanoelectromechanical (NEMS) design for carbon nanotube-based memory cells at finite temperatures through both experimental validation and multiscale simulation. To achieve this objective we will do the following tasks: (1) Design and implementation of an experiment to investigate the oscillatory mechanisms of nanotube-based oscillators in order to confirm the proposed NEMS design. (2) Utilization of a hierarchical multiscale method that incorporates a temperature-related homogenization technique to analyze large models of the proposed NEMS design.The intellectual merits of this proposal lie in the inherent challenge of designing a new NEMS capable of functioning as a memory cell at finite temperatures. The new NEMS will be achieved by coating electrodes on the outer tube of a nano-oscillator so that induced electromagnetic forces can overcome temperature-related interlayer friction. A novel nanotechnology experiment will be designed to study the oscillatory mechanisms and behavior of nanotube-based oscillators at room temperature. The experimental methodology will also serve to accelerate fabrication of the proposed high-speed memory cell design. Furthermore, the proposed experiments will validate a multiscale model of the proposed NEMS so that large memory cell models can be analyzed using a continuum approach in which temperature effects (not only room temperature but also high temperatures) will be considered. Once developed, the multiscale method can be extended as a tool for the design of other nanoscale devices. The broader impact of the proposed effort is the considerable potential for nanotechnology applications, especially in nanoelectronics. With the assistance of numerical modeling and experimental investigation, this project will form a solid basis for fabrication of a novel memory device that could be used as a building block for memory devices and logic gates beyond the capabilities of silicon-based electronics. In addition, the proposed effort also includes a training component for engineering undergraduate and graduate students in this nascent field. The PI will also involve the public education system in nanotechnology, particularly K-12 education. Hence, the proposed research will broadly impact engineering development in nanotechnology.

(肖平肖)SGER：有限温度下基于碳纳米管的存储单元的纳米机电设计该提案的目的是通过实验验证和多尺度分析有限温度下基于碳纳米管的存储单元的纳米机电（NEMS）设计的可行性模拟。为了实现这一目标，我们将完成以下任务：（1）设计和实施实验来研究基于纳米管的振荡器的振荡机制，以确认所提出的NEMS设计。 (2) 利用分层多尺度方法，结合与温度相关的均质化技术来分析所提议的 NEMS 设计的大型模型。该提议的智力优点在于设计能够充当存储单元的新 NEMS 的固有挑战在有限的温度下。新的NEMS将通过在纳米振荡器的外管上涂覆电极来实现，这样感应电磁力就可以克服与温度相关的层间摩擦力。将设计一项新颖的纳米技术实验来研究室温下基于纳米管的振荡器的振荡机制和行为。该实验方法还将有助于加速所提出的高速存储单元设计的制造。此外，所提出的实验将验证所提出的 NEMS 的多尺度模型，以便可以使用连续体方法来分析大型存储单元模型，其中将考虑温度影响（不仅是室温，还包括高温）。一旦开发出来，多尺度方法可以扩展为其他纳米级器件设计的工具。 拟议工作的更广泛影响是纳米技术应用的巨大潜力，特别是在纳米电子学领域。在数值建模和实验研究的帮助下，该项目将为制造新型存储器件奠定坚实的基础，该器件可用作超出硅基电子器件能力的存储器件和逻辑门的构建块。 此外，拟议的工作还包括为这个新兴领域的工程本科生和研究生提供培训。 该项目负责人还将涉及纳米技术的公共教育系统，特别是 K-12 教育。因此，拟议的研究将广泛影响纳米技术的工程发展。