碳纳米管接触电阻的研究

项目名称： 碳纳米管接触电阻的研究

项目编号： No.51472074

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 安立宝

作者单位： 华北理工大学

项目金额： 85万元

中文摘要： 碳纳米管由于卓越的性能成为当前纳米技术领域研究的热门材料，但与金属之间过高的接触电阻阻碍了其在微电子、传感器、新能源等诸多领域的应用。目前，碳纳米管与金属界面接触电阻的形成机理尚不完全清楚，现有分析模型大都基于宏观的块体材料，不适合纳米尺度材料的研究；在应用方面，有效地改善碳纳米管接触电阻的技术和方法依然缺乏。此立项旨在系统研究影响碳纳米管接触电阻的各种因素，研究碳纳米管与金属界面实现低接触电阻的条件和方法，特别是研究适合于碳纳米管等纳米材料的接触电阻模型以及通过掺杂和通电产生焦耳热等技术有效降低碳纳米管接触电阻的方法，并研究将降低接触电阻方法与碳纳米管介电电泳组装间隙阻抗测量与反馈控制技术相结合，从而实现高自动化程度的碳纳米管低接触电阻组装。该研究对碳纳米管在纳米电子相关领域的应用将起到重要的推动作用，同时为其他先进纳米材料如石墨烯接触电阻的研究提供指导。

中文关键词： 碳纳米管；接触电阻；模型；掺杂

英文摘要： Carbon nanotubes are attracting extensive research due to their excellent properties. High contact resistance is one barrier to their applications in many fields such as micro-electronics, sensors, and new energy. The contact mechanism of carbon nanotubes with metals has not been fully understood so far. Existing models of contact resistance are often based on bulk materials and inapplicable at the nanoscale. Techniques and methods for improving electrical contact are still needed from an application point of view. The proposal aims to a systematic study of contact resistance of carbon nanotubes and its influencing factors, the conditions and methods for achieving a low contact resistance. In particular, a model which is applicable to carbon nanomaterials such as carbon nanotubes will be established and doping and current flow for lowing contact resistance will be investigated. The combination of these techniques for lowing contact resistance with electrode gap impedance measurement and feedback control during dielectrophoresis will also be studied for realizing automatic assembly of carbon nanotubes with low contact resistance. The research helps promote the industrial application of carbon nanotubes, especially in the fields related to nanoelectronics. The results will provide guidance to the study of contact resistance of other advanced nanomaterials including graphene.

英文关键词： Carbon Nanotube;Contact Resistance;Model;Doping