The thermoelectric properties of two thermoelectric materials (Ca3Co4O9+delta and Ca3−xPrxCo3.95Ga0.05O9+delta) were investigated in this paper. The power factor of one of the samples was improved by 52% relative to the others. The second material tested had a 50% improvement in the figure of merit over the first material. The study concluded that partial substition of the Pr3+ ions can improve the thermoelectric properties of these ...
A series of compacted Bi0.5Sb1.5Te3 nanoplatelets are synthesized using hydrothermal methods, followed by cold pressing and sintering at temperatures between 300°C and 380°C. A variety of thermal, mechanical and electrical analyses are then performed on the synthesized nanoplatelets including: TPS technique for thermal conductivity, SEM/TEM/AFM to elucidate the mechanical and physical properties of the nanoplatelets, and the Oxford closed cycle cooler cryostat for measurement of electrical ...
