Fig. 3: Microstructure and transport properties of polycrystalline Pb1.004S0.6Se0.4 + zCu samples. | Nature Communications

Fig. 3: Microstructure and transport properties of polycrystalline Pb1.004S0.6Se0.4 + zCu samples.

From: Realizing thermoelectric cooling and power generation in N-type PbS0.6Se0.4 via lattice plainification and interstitial doping

Fig. 3

a Atomic resolution STEM image with Cu-rich area along [100] zone axis and (b) amplifying image of Cu-rich area. c The formation energy calculation results for point defects in PbS as the function of Fermi energy (EF) under Pb-rich condition. d Carrier density n and carrier mobility μ of Pb1.004S0.6Se0.4 + zCu samples. Temperature dependence of (e) electrical conductivity σ, (f) Seebeck coefficient S, (g) power factor PF, (h) total thermal conductivity κtot and lattice thermal conductivity κlat, (i) ZT value of Pb1.004S0.6Se0.4 + zCu samples.

Back to article page