Thermoelectric SnS and SnS-SnSe solid solutions prepared by mechanical alloying and spark plasma sintering: Anisotropic thermoelectric properties.

ABSTRACT: P-type SnS compound and SnS_1-xSe_x solid solutions were prepared by mechanical alloying followed by spark plasma sintering (SPS) and their thermoelectric properties were then studied in different compositions (x = 0.0, 0.2, 0.5, 0.8) along the directions parallel (//) and perpendicular (⊥) to the SPS-pressurizing direction in the temperature range 323-823 Κ. SnS compound and SnS_1-xSe_x solid solutions exhibited anisotropic thermoelectric performance and showed higher power factor and thermal conductivity along the direction ⊥ than the // one. The thermal conductivity decreased with increasing contents of Se and fell to 0.36 W m^-1 K^-1 at 823 K for the composition SnS_0.5Se_0.5. With increasing selenium conte

SUBMITTER: Asfandiyar 

PROVIDER: S-EPMC5327431 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature