Origins of ultra-low thermal transport in giant anharmonic SnSe and their applications in thermoelectric materials engineering


Grant Data
Project Title
Origins of ultra-low thermal transport in giant anharmonic SnSe and their applications in thermoelectric materials engineering
Principal Investigator
Dr Chen, Yue   (Principal investigator)
Duration
36
Start Date
2016-09-01
Completion Date
2019-08-31
Amount
618470
Conference Title
Presentation Title
Keywords
First principle calculation, Density functional theory, Ab initio calculation, Thermoelectric compounds
Discipline
Materials
Panel
Engineering (E)
Sponsor
RGC Early Career Scheme (ECS)
HKU Project Code
27202516
Grant Type
Early Career Scheme (ECS)
Funding Year
2016/2017
Status
On-going
Objectives
1) To understand the anomalously low thermal conductivity of single crystal SnSe and resolve current discrepancy between theory and experiment via the development of slave-mode expansions, which will be equally applicable to other orthorhombic IV-VI thermoelectric compounds, facilitating future studies on their thermal transports; 2) To unveil the origins of alloying effects on the transport properties of SnSe through thorough theoretical and experimental investigations, which will pave the way for alloying engineering of distorted rock-salt IV-VI thermoelectric compounds.