Fig. 1: PXRD and lattice thermal conductivity of Pb1.02Se1–xTex and Pb1.02Se1–ySy.
From: Dense dislocations enable high-performance PbSe thermoelectric at low-medium temperatures

a Powder XRD patterns of Pb1.02Se1–xTex (x = 0–0.20). b Powder XRD patterns of Pb1.02Se1–ySy (y = 0–0.10). c Lattice parameter as a function of Te/S fraction. d Room-temperature lattice thermal conductivity as a function of Te/S fraction in Pb1.02Se1–xTex (x = 0–0.20) and Pb1.02Se1–ySy (y = 0–0.10).