CAREER: Thermal Transport and Thermoelectric Measurements of Nanotransistors, Nanowires, and Superlattices

摘要提案编号：CTS-0239179主要研究者： 李石所属： 德克萨斯大学提案标题：职业：纳米晶体管，纳米线和超晶格的热传输和热电测量这个职业发展计划建议研究受弹道电荷传输影响的纳米晶体管的热传输，并表征具有潜在上级热电优值的纳米线和超晶格的热电特性。将开发纳米级温度和电场定量映射技术，用于研究亚100 nm绝缘体上硅（SOI）和SiGe金属氧化物半导体场效应晶体管（MOSFET）以及单壁碳纳米管（SWCN）器件中的散热和局部热点。一个悬浮的微型装置将被用来表征纳米线的热电性能和研究SWCN中的量子热输运。PI将进一步开发一种技术，用于在Si/Ge和GaAs/AlAs超晶格冷却器的单个量子阱和势垒层上进行Seebeck系数的纳米级映射。PI将采用有效的模型进行微纳米级工程教学。他将通过课程改革努力，将微纳米尺度的热流体教学与现有的本科课程相结合，重点是在他的家庭部门以项目为中心的教育。此外，PI还将开发一门新的微纳米尺度热/流体科学和技术研究生课程，以及一个介绍性的实验室部分，供PI所在机构为K-12教师、妇女和少数民族学生组织的定期夏季研讨会使用。该奖项得到化学和运输系统部门热运输和热处理项目的支持。

AbstractProposal Number: CTS-0239179Principal Investigator: Li ShiAffiliation: University of TexasProposal Title: CAREER: Thermal transport and thermoelectric measurements of nanotransistors, nanowires,and superlatticesThis career-development program proposes to investigate thermal transport of nanotransistors that are influenced by ballistic charge transport, and to characterize thermoelectric properties of nanowires and superlattices with potentially superior thermoelectric figure of merit. Techniques for nanoscale quantitative mapping of temperature and electric fields will be developed for studying heat dissipation and local hot spots in sub-100 nm silicon-on-insulator (SOI) and SiGe metal-oxide-semiconductor field effect transistors (MOSFETs), and in single wall carbon nanotube (SWCN) devices. A suspended micro- device will be used to characterize thermoelectric properties of nanowires and to investigate quantum thermal transport in SWCNs. The PI will further develop a technique for nanoscale mapping of Seebeck coefficient across individual quantum well and barrier layers of Si/Ge and GaAs/AlAs superlattice coolers. The PI will adopt effective models for micro-nano scale engineering instruction. He will integrate micro-nano scale thermo-fluids teaching with existing undergraduate courses via a curriculum reform effort focused on Project-Centered Education at his home department. Further, the PI will develop a new graduate course on micro-nano scale thermal/fluid science and technology, and an introductory laboratory section for use in regular summer workshops organized by the PI's institution for K-12 teachers, women and minority students.The award is supported by the Thermal Transport and Thermal Processing Program of the Chemical and Transport Systems Division.