Qing Tan

TL;DR: In this article, it is demonstrated that mixing SiC nanoparticles into the BiSbTe matrix effectively enhances its thermoelectric properties; a high dimensionless figure of merit (ZT) value of up to 1.33 at 373 K is obtained in Bi0.3Sb1.7Te3 incorporated with only 0.4 vol% SiC nanoinclusions possessing coherent interfaces with the Bi 0.

TL;DR: In this article, the thermoelectric properties of Ag-doped SnS samples synthesized by mechanical alloying followed by spark plasma sintering were studied and it was shown that SnS possesses a high Seebeck coefficient of >+400 μV K−1 and Ag doping increases the carrier concentration by more than four orders of magnitude giving significantly improving electrical conductivity.

TL;DR: In this paper, the performance of PbTe-PbS pseudo-binary was investigated via transmission electron microscopy (TEM) observations and theoretical calculations, and the results showed that the SPSed samples of Spark Plasma Sintered (SPSed) 3 at% Na-doped (PbTe)1−x(PBS)x with x = 10, 15, 20, 25, 30% and 35%.

TL;DR: In this article, a PbTe1−xSex-2%Na-y%SrTe system is investigated and a high maximum ZT of 2.3 at 923 K for PbTE0.85Se0.15-2Na-4% SrTe is reported, achieved by performing electronic band structures modifications as well as all-scale hierarchical structuring.

TL;DR: It is revealed that SnSe1-xTex solid solutions are formed when x ranges from 0 to 0.2, and an energy barrier scattering mechanism is suitable for understanding the electrical conducting behaviour observed in the present SnSe polycrystalline materials, which may be associated with abundant defects at grain boundaries.