Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity
Figure 1
(a) The SEM image of Bi0.5Sb1.5Te3 powders, (b) schematic illustration of evaporation process, and (c, d) SEM images of Te coated Bi0.5Sb1.5Te3 by evaporation method.