NER: Nano-Electronic Components Based on Carbon Nanotube Y-Junctions

NER：基于碳纳米管 Y 形结的纳米电子元件

• 批准号: 0508514
• 负责人: Prabhakar Bandaru
• 金额: $ 10万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-07-01 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0508514&HistoricalAwards=false
• 关键词: NER; Nano; Electronic; Components; Based

The objective of this research is the study of the structure-electrical property correlations in multi-walled carbon nanotube based Y-junctions, for the development of nanoelectronic components such as inverters, logic gates, and frequency mixers. The approach is the sequential: (1) synthesis of Y-junction morphologies through chemical vapor deposition processes, (2) assembly of the junctions into electrical circuits through nano-contacts fabricated by focused ion beam milling and in situ metal evaporation, (3) electrical characterization of nanoscale transport characteristics, (4) structural analysis by transmission electron microscopy, and (5) identification of desirable device characteristics for novel nanoelectronic devices. The carrier delocalization, and the catalyst particles introduced during growth, induces scattering centers at the junction region which can be exploited in Y-junction based electronic devices. In preliminary electrical measurements, both diode like and inverting/switching behavior was observed in three-terminal Y-junctions, up to 50 kHz, which will be investigated. The broader impact would be: (a) the fabrication of novel and economical devices with advantages of low power consumption, radiation hardness, and reduced heat dissipation over conventional silicon based technologies, relevant to both civilian and military applications, (b) to convey the excitement of nano-science and technology to the wider community through developing new courses, freshman seminars, and outreach activities. By working with Preuss High School on the UCSD campus, a student and teacher exchange program will be developed. The graduate and undergraduate students working on this project will be exposed to cutting edge nanotechnology research, preparing them for careers in academe and industry.

本研究的目的是研究基于多壁碳纳米管的Y型结的结构-电学性质相关性，用于开发诸如反相器、逻辑门和混频器等纳米电子元件。该方法是顺序的：(1)通过化学气相沉积过程合成Y结的形态，(2)通过聚焦离子束研磨和原位金属蒸发制备的纳米接触将Y结组装成电路，(3)纳米尺度传输特性的电学表征，(4)通过透射电子显微镜进行结构分析，以及(5)确定新型纳米电子器件所需的器件特性。载流子离域和在生长过程中引入的催化剂颗粒在结区引起散射中心，这可用于基于Y结的电子器件。在初步的电学测量中，在高达50 kHz的三端Y型结中观察到了类二极管和反转/开关行为，这将被研究。更广泛的影响将是：(A)制造与传统硅基技术相比具有低功耗、辐射硬度和减少散热的新型经济设备，这与民用和军事应用都相关；(B)通过开发新课程、新生研讨会和外联活动，向更广泛的社区传达纳米科学和技术的兴奋。通过与加州大学圣迭戈分校的普赖斯高中合作，将开发一个学生和教师交流计划。从事这个项目的研究生和本科生将接触到尖端的纳米技术研究，为他们在学术界和工业界的职业生涯做好准备。