SEMINAR
The State Key Lab of
High Performance Ceramics and Superfine Microstructure
Shanghai Institute of Ceramics, Chinese Academy of Sciences
中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室

Thermionics in nanostructured systems

Speaker：Prof. Chao Zhang

School of Engineering Physics
University of Wollongong
Australia

Abstract

Materials of high figure of merit are of paramount importance in developing thermoelectric and thermionic devices. These devices realize energy conversion between heat and electricity without the use of moving mechanical components and hazardous working fluids.  n this talk, we present our recent modelling result on nano-thermoelectrics and nano-thermionics. We demonstrate that nano-materials (e.g., semiconductor/semiconductor layered structures, nanowires, quantum dots) can have high efficiency close to the theoretical limit, main due to the ballistic electron motion and reduced phonon heat conduction. We propose new devices derived from nanoscale structures and composites and explore potential applications in making novel thermoelectric and thermionic nano-devices.

时间：3月30日 （星期二）上午9:30am

地点： 2号楼607会议室

联系人：陈立东、张文清研究员 (2416)