Thermoelectric materials enable direct conversion of heat to electricity using the Seebeck effect, a fundamental phenomenon demonstrating that motion of mobile charge carriers initiated by a temperature difference along the material results in appearance of electric field. The goal of this research is to better understand the Seebeck effect in various materials, mostly complex tellurides, and design more efficient thermoelectric materials.
It is expected that student will learn a lot in the area of physics and chemistry of novel thermoelectric materials and participate in experimental work: cut and polish samples, measure thermoelectric properties (Seebeck coefficient, electrical resistivity, and thermal conductivity), plot the data, and conduct some analysis. For experimental work will be used diamond saw, Seebeck coefficient and electrical resistivity measurement system LSR-3, and thermal conductivity measurement system XFA-500.
Mentor: Evgenii Levin, Ames Laboratory scientist