SGER: Experimental Investigation Into the Thermal Transport in Individual Carbon Nanotubes Along the Atomic Layer Direction

SGER：单个碳纳米管沿原子层方向热传输的实验研究

• 批准号: 0400458
• 负责人: Xinwei Wang
• 金额: $ 4.97万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-01 至 2006-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0400458&HistoricalAwards=false
• 关键词: SGER; Experimental; Investigation; Into; Thermal

The unique structure and dimension of carbon nanotubes (CNTs) lead to novel physical properties that promote a wide variety of potential applications such as high-performance field-effect nanotransistors, novel tips for scanning probe microscopes, and high-efficiency nanotube-based field-emission devices. The objectives of this one-year SGER project are to: (1) conduct exploratory experimental investigation into the high thermal conductivity of CNTs along the atomic layer in the axial direction, and (2) explore the thermal contact resistance between CNTs and the substrate. The proposed project is considered high risk because the unknown thermal conductivity of CNTs and the thermal contact resistance between CNTs and the substrate could be unusually highly to make the proposed technique unable to sense the thermal transport in CNTs with high accuracy. The project will provide important guidance on nanoscale manipulation of CNTs, leading to greater control of thermal transport at the nanometer level. The knowledge that will result from this project will also advance the step toward optimizing the thermal management of CNT devices and systems, thus improving system performance and prolonging device lifetime. Our quantitative investigation into the thermal contact resistance between CNTs and the substrate is a first and important step towards the thermal design of joints between CNTs and micro/nanodevices to achieve desired system performance and stability.

碳纳米管（CNT）的独特结构和尺寸导致了新型的物理特性，这些特性促进了各种潜在的应用，例如高性能现场效应纳米传递器，用于扫描探针显微镜的新型技巧以及高效率纳米管基于纳米管的野外野外发射设备。这个为期一年的SGER项目的目标是：（1）对轴向沿原子层沿着原子层的高导热率进行探索性实验研究，（2）探索CNT和底物之间的热接触电阻。该提出的项目被认为是高风险，因为CNT的未知导热率和CNT和底物之间的热接触电阻可能异常高，以使所提出的技术无法以高精度感知CNT的热传输。该项目将为CNT的纳米级操纵提供重要的指导，从而更大程度地控制纳米水平的热传输。该项目将产生的知识也将迈向优化CNT设备和系统的热管理，从而改善系统性能并延长设备寿命。我们对CNT和底物之间的热接触电阻的定量研究是朝着CNT和Micro/Nanodevices之间关节热设计的第一步，以达到所需的系统性能和稳定性。