CAREER: Nanoscale Thermal Processing with a Heated Atomic Force Microscope Cantilever Tip

提案编号：CTS-0238888主要研究员：威廉·P·金隶属关系：佐治亚理工学院提案标题：职业：利用加热原子力显微镜悬臂梁进行纳米级热处理自1986年发明以来，原子力显微镜(AFM)已成为纳米科学和纳米技术中应用最广泛的仪器。制作了用于热机械数据存储的AFM悬臂梁，其尖端的曲率半径接近20 nm，并集成了加热。当加热的悬臂尖端与衬底接触时，只有尖端和衬底之间的接触区域被加热。由于接触直径只有1 nm，加热的AFM悬臂梁尖端与衬底之间的接触面积是有史以来最小的受控热源。因此，加热的AFM悬臂梁尖端是研究纳米尺度上的热传输和相变的基本原理的一个很好的工具，与宏观尺度相比可能有很大的不同。这项研究计划将加热的原子力显微镜悬臂式尖端作为一种科学仪器，用于纳米级表征依赖于温度的物理和化学转变。该教育计划包括开发一门新的研究生课程，内容是热和流体微纳设备设计。参与这项研究的研究生还将接触到一系列广泛的技术和文化经验，包括与国家实验室和工业以及与国际合作者的合作。该奖项由化学和运输系统部门的热传输和热处理计划支持。

AbstractProposal Number: CTS-0238888Principal Investigator: William P. KingAffiliation: Georgia Institute of TechnologyProposal Title: CAREER: Nanoscale thermal processing with a heated atomic force microscope cantilever tipSince its invention in 1986, the atomic force microscope (AFM) has become the most widely used instrument for nanoscience and nanotechnology. AFM cantilevers used in thermomechanical data storage are fabricated with a tip having a radius of curvature near 20 nm and integrated heating. As the heated cantilever tip is brought into contact with a substrate, only the area of contact between the tip and the substrate is heated. With a diameter of contact as small as 1 nm, the contact area between a heated AFM cantilever tip and a substrate is the smallest controlled heating source ever produced. Thus, the heated AFM cantilever tip is an excellent tool for studying the fundamentals of heat transport and phase change at the nanometer scale, which can be substantially different compared to macroscopic scales. This research plan develops the heated AFM cantilever tip as a scientific instrument for nanometer-scale characterization of temperature-dependant physical and chemical transitions. The educational plan includes the development of a new graduate course in the design of thermal and fluid micro and nano devices. Graduate students involved in this research will also be exposed to a broad set of technical and cultural experiences, including collaborations with national laboratories and industry and with international collaborators.The award is supported by the Thermal Transport and Thermal Processing Program of the Chemical and Transport Systems Division.