Stability and Thermoelectric Properties of ZnSb with TiO Nanoparticle Inclusions.

β-ZnSb is a cheap nontoxic high-performance thermoelectric material, which unfortunately suffers from stability issues because of zinc migration in thermal and electrical gradients. Here, the thermoelectric properties and thermal stability of β-ZnSb mixed with varying sizes and weight percentages of TiO nanoparticles are investigated. Furthermore, the stability of pressed β-ZnSb-TiO nanocomposite pellets is investigated by measuring high-energy synchrotron powder X-ray diffraction (PXRD) data during operating conditions using the Aarhus thermoelectric setup (ATOS).