Abstract:
First, I will give a brief introduction of the thermoelectric material (TE) about its past and future; basic researches and applications. At present, the efficiency of heat-electricity conversion is still far below that of photovoltaic solar panel, thus to improve its efficiency is the most significant work of the TE materials. The efficiency of thermoelectric conversion is represented by the dimensionless ZT (=sS2T/k), where s is electrical conductivity, S is Seebeck coefficient, T is the absolute temperature and k is the total thermal conductivity of electrons and phonons. Obviously, the way to enhance sS2 and reduce k become a strategy to raise ZT value.
In the talk, I will show a couple of examples of TE materials and the methods to enhance ZT, such as Zn4Sb3 crystals, Sb2−xInxTe3 (x=0–0.2) bulk, topological insulator Bi1.5Sb0.5Te1.7Se1.3 nanowires, and the recent hot topic of SnSe crystal. At the end, I will show you a micro TE electrical generator for the possible application in our daily life.
Brief Bio:
I. PRESENT POSITION AND PERSONAL INFORMATION:
Academia Sinica Senior Research Fellow, Physics 1993-
National Chung Shing Univ. Professor, Joint appointment, Physics 2005-
National Chengchi Univ. Professor, Joint appoint, Physics. 2008-
II. DEGREES:
B.S. Department of Physics, Soochow University 1977
M.S. Department of Physics, University of California, Irvine 1983
Ph.D. Department of Physics, University of California, Irvine 1987
III. FIELDS OF RESEARCH INTEREST:
Low temperature physics, high-pressure and calorimetry, heavy Fermion, nanoscience, biophysics, thermoelectricity, renewable energy
IV. PLENARY OR INVITED LECTURES (in 5 years)
Plenary lectures:
1. 2013 Taiwan-Japan Thermoelectric technology workshop, Taipei, 4/22, 2013
2. 2nd International Conference on Frontiers in Nano Science, Technology and Applications, Andhra Pradesh, India, 12/20-22, 2014
3. Leading talk, 4th International Conference on Sustainable Energy Engineering and Application (ICSEEA 2016), Jakarta, Indonesia, 10/3-5, 2016
Invited lectures：
1. Collaborative Conference on Materials Research (CCMR), Jeju Island, South Korea, 6/24-28, 2013
2. International Union of Materials Research Societies-International Conference on Electronic Materials (IUMRS-ICEM), Taipei, 6/10-14, 2014
3. 2015 Symposium for the Promotion of Applied Research Collaboration in Asia (SPARCA 2015) Taipei, Taiwan, 2/8-11 2015
4. The 2nd NIMS-Taiwan MOST Workshop, Tsukuba, 4/21- 23, 2015
5.兩岸熱電材料及應用交流論壇, Taipei 4/28-29, 2015
6. EMN Meeting on Thermoelectric Materials , Orlando, FL USA, 2/21-25, 2016
7. The 35th International Conference & The 1st Asian Conference on Thermoelectricis, Wuhan, China, 5/29-6/2, 2016
8. 2017 TMS annual meeting in San Diego, California, USA, 2/26-3/2, 2017