Microstructures and thermoelectric properties of p-type pseudo-binary Bi–Sb–Te alloys with partial substitution of Ga for Sb prepared by spark plasma sintering

Crystal structure analysis and thermoelectric properties of p-type pseudo-binary (Al2Te3)x–(Bi0.5Sb1.5Te3)1−x (x=0∼0.2) alloys prepared by spark plasma sintering

“…The results from recent research in our group also confirmed that proper introductions of Ag, Cu and Ga [10][11][12] in the Bi 0.5 Sb 1.5 Te 3 alloy are essential in improving the thermoelectric performance, due to their substantial enhancement of electrical conductivity and reduction of lattice thermal conductivity, without noticeable loss of Seebeck coefficient. An addition of compound as Ag 0.365 Sb 0.558 Te into the Bi-Te based alloys is a new approach to modulate the thermoelectric properties in question [13], the compound Ag 0.365 Sb 0.558 Te with cubic type (sp.gr.…”

Improvement in thermoelectric performance of In6Se7 by substitution of Sn for In

“…In addition, the backscattered SEM results show no visible textured structure (see Figs. S2e and f), we therefore, believe that the structures taken from different directions have little impact on the transport properties, according to the previous experience . XRD analysis shows that materials exhibit monoclinic In 6 Se 7 ‐based solid solution (space group: P2 l /m, PDF:85–0184) in the whole composition range ( x = 0–0.7), as shown in Fig.…”

Thermoelectric Properties of P-Type Heusler Compounds (Fe<SUB>2&minus;<I>x</I></SUB>Co<I><SUB>x</SUB></I>)(V<SUB>1&minus;<I>y</I></SUB>Ti<I><SUB>y</SUB></I>)Al

“…The obtained power factor is comparable to that the p-type Bi-Te system processed by powder metallurgy method. 14,15) However, the further Co doping (x ¼ 0:07 and y ¼ 0:10) leads to a decrease in the power factor. The figure of merit (Z ¼ P=) at 300 K is also derived from Figs.…”