Fig. 5: Thermal and thermoelectric properties.
From: Copper ion diffusion by solid solution treatment advancing GeTe-based thermoelectrics
a, b Temperature-dependent thermal conductivity (κ) and lattice thermal conductivity (κl), respectively. c Spectral lattice thermal conductivity (κs) considering various phonon scattering processes. d Figure-of-merit (ZT) as a function of reduced chemical potential (η) and quality factor (B). e Temperature-dependent figure-of-merit (ZT). f Experimental current (I)-dependent voltage (V) and power density of GST + 0.01Cu at ΔT = 75 K, 175 K, 275 K, 375 K, and 475 K.
