Since the discovery of thermoelectricity by Thomas Johann Seebeck (1770-1831), thermoelectric generators (TEGs) devices have attracted the interest of a lot of scientists due to their unique dual capability of directly converting heat to electricity or electrical power into cooling or heating. Although intensive efforts have been made to produce new materials with enhanced thermoelectric properties, the Bi2Te3 or PbTe ... إقراء المزيد