Nanoscale Phononic Phenomena and Thermal Imaging

纳米级声子现象和热成像

• 批准号: 2106715
• 金额: --
• 依托单位: University of York
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2106715
• 关键词: Nanoscale; Phononic; Phenomena; Thermal; Imaging

In contrast to our advanced understanding of electronic transport, understanding of nanoscale thermal transport is in its infancy, limiting our ability to manage heat flow on the nanoscale. There are fundamental challenges in understanding the role of quantum size effects, interfacial resistances and the interplay of phonon and electronic thermal transport. Coupled with these theoretical challenges, there are few methods of experimentally measuring thermal properties with spatial resolution. The student will develop and apply the technique of Scanning Thermal Microscopy using a modified Atomic Force Microscope to study nanoscale thermal transport. The materials focus will be on the thermal transport properties of advanced materials for applications in high density magnetic data storage and the design of phononic meta materials for nanoscale thermoelectrics.

与我们对电子输运的先进理解相反，对纳米级热输运的理解处于起步阶段，限制了我们在纳米级上管理热流的能力。在理解量子尺寸效应、界面电阻以及声子和电子热输运的相互作用方面存在根本性的挑战。再加上这些理论上的挑战，有几个实验测量的空间分辨率的热性能的方法。学生将开发和应用扫描热显微镜技术，使用改进的原子力显微镜来研究纳米级的热传输。材料重点将是应用于高密度磁数据存储的先进材料的热传输性能以及用于纳米级热电材料的声子Meta材料的设计。