The effect of powder synthesis method on thermoelectric properties of Bi2Te2.7Se0.3 thin films

Enhancement in thermoelectric performance of hydrothermally synthesized Ca and Sb co-doped Bi2Te3 nanostructures

“…Recently, it has also been suggested that changing the shape of Bi 2 Te 3 nanostructures is a successful method for increasing the number of factorials in ZT. Due to the high density of states around the fermi level in quantum well-like structures with highly confined electrons, a sharp increase in ZT is recorded [35,36]. A ZT of ∼1.27 at 373 K was reported in Sn-doped Bi 0.5 Sb 1.5 Te 3 due to increment in hole concentration and phonon scattering from micro-grains, twin boundaries, and mass fluctuations [37].…”