CAREER: Nonlinear Carbon Nanotube and Nanowire Morphologies for Unique Nanoelectronics

职业：独特纳米电子学的非线性碳纳米管和纳米线形态

• 批准号: 0643761
• 负责人: Prabhakar Bandaru
• 金额: $ 40万
• 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: 2007
• 资助国家: 美国
• 起止时间: 2007-02-01 至 2013-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0643761&HistoricalAwards=false
• 关键词: CAREER; Nonlinear; Carbon; Nanotube; Nanowire

The objective of this research is detailed study of the electrical properties of nonlinear carbon nanotube (CNT) structures, such as nanojunctions and nanocoils, for developing new types of nanoelectronic components including electrical switches, logic elements, frequency mixers, and nanoscale inductors. The approach incorporates: (1) controlled synthesis of CNT morphologies such as Y-junctions and nanohelices through chemical vapor deposition processes, (2) structural analysis through transmission electron microscopy, (3) investigation of growth mechanisms and defects, (4) study of the nanoscale electrical conduction mechanisms & device modeling, (5) layout of electrical and optoelectronic circuits, and (6) exploring the limits of device operation through high frequency measurements. Intellectual merit: The proposed research into novel CNT structures may well usher in a new nanoelectronics technology through the use of new physical pronciples and the development of new classes of devices. Unique electrical properties have been predicted for nonlinear CNT structures, based on asymmetry at the junction regions, and portend a new generation of nanoelectronics. In preliminary measurements, novel inverting/switching behavior in three-terminal Y-junctions, and nanoscale inductive behavior in the nanocoils/helices was observed which forms the foundation for the work It could result into many new applications.The broader impact would be: (a) the fabrication of nanoscale devices with the advantages of low power consumption, radiation hardness, and reduced heat dissipation over conventional silicon based technologies, relevant to civilian and military applications, and (b) outreach to the community in terms of conveying the excitement of novel science and device paradigms, through freshman seminars and new courses, along with undergraduate and graduate student mentoring. By working with Preuss High School, a student and teacher exchange program will be developed

本研究的目的是详细研究非线性碳纳米管（CNT）结构的电学特性，如纳米结和纳米线圈，用于开发新型的纳米电子元件，包括电气开关，逻辑元件，频率混频器和纳米级电感器。该方法包括：(1)通过化学气相沉积工艺控制合成碳纳米管形态，如y结和纳米螺旋；(2)通过透射电子显微镜进行结构分析；(3)研究生长机制和缺陷；(4)研究纳米级导电机制和器件建模；(5)电气和光电子电路的布局；(6)通过高频测量探索器件的操作极限。知识价值：提出的新型碳纳米管结构的研究可能会通过使用新的物理原理和开发新的设备类别来引领新的纳米电子技术。基于结区的不对称性，预测了非线性碳纳米管结构的独特电学特性，并预示着新一代的纳米电子学。在初步测量中，观察到三端y型结的新型逆变/开关行为，以及纳米线圈/螺旋中的纳米级感应行为，这为这项工作奠定了基础，它可能导致许多新的应用。更广泛的影响将是：(a)与传统的硅基技术相比，纳米级器件的制造具有低功耗、辐射硬度和减少散热的优势，与民用和军事应用相关；(b)通过新生研讨会和新课程，以及本科生和研究生的指导，向社区推广新奇的科学和器件范例。通过与普鲁斯高中合作，将开发一个学生和教师交流项目