A combined theoretical and experimental study of the vibrational and thermal-transport properties of partially liquid-like crystalline solids


Grant Data
Project Title
A combined theoretical and experimental study of the vibrational and thermal-transport properties of partially liquid-like crystalline solids
Principal Investigator
Dr Chen, Yue   (Principal investigator)
Duration
36
Start Date
2018-01-01
Completion Date
2020-12-31
Amount
443950
Conference Title
Presentation Title
Keywords
First principle calculation, Density functional theory, Alloys and compounds
Discipline
Thermal
Panel
Engineering (E)
Sponsor
RGC General Research Fund (GRF)
HKU Project Code
17200017
Grant Type
General Research Fund (GRF)
Funding Year
2017/2018
Status
Completed
Objectives
1)To develop a new broadly applicable approach for predicting phonon coupling beyond the capabilities of perturbation theory; 2) To unveil the phonon coupling mechanisms that lead to a strong suppression of thermal transport through a combination of both theoretical and experimental approaches; 3) To optimize material thermal properties for various engineering applications based on new insight into the interplay among the chemical bond hierarchy, phonon coupling, and ultralow thermal conductivity.