Dataset on the electronic and thermal transport properties of quaternary compounds of (PbTe)0.95?x(PbSe)x(PbS)0.05

摘要

The data presented in this article are related to the research article entitled “High thermoelectric performance in pseudo quaternary compounds of (PbTe) 0.95? x (PbSe) x (PbS) 0.05 by simultaneous band convergence and nano precipitation” (Ginting et al., 2017) . We measured electrical and thermal transport properties such as temperature-dependent Hall carrier density n H , Hall mobility μ H , thermal diffusivity D , heat capacity C p , and power factor S 2 σ in (PbTe) 0.95? x (PbSe) x (PbS) 0.05 ( x =0.0, 0.05, 0.10, 0.15, 0.20, 0.35, and 0.95) compounds with other related compounds from references. From the theoretical fitting of thermal conductivity κ , we found that the temperature-dependent thermal conductivity follows nano-structure model as well as alloy scattering. Transmission electron microscopy images shows that there are numerous nano-scale precipitates in a matrix. Owing to the low thermal conductivity and high power factor, we report high thermoelectric performances such as the high ZT , engineering ZT eng , efficiency η .