Fig. 1: High performance and earth-abundant PbS-based material demonstrates the TE cooling and power generation potential. | Nature Communications

Fig. 1: High performance and earth-abundant PbS-based material demonstrates the TE cooling and power generation potential.

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

Fig. 1

a The Earth abundance and global production of the constituent elements in commercial Bi2Te3 and PbS. b, c The comparison of ZT value, power factor, ZTave and cost-effectiveness (ZTave/cost) between commercial Bi2Te3 (COML BT) and our developed sample. d Schematic illustration depicting the progresses of lattice plainification and interstitial Cu doping for PbS. e The temperature-dependent ZT showing the gradually increase in TE performance. f The pictures of high quality PbS crystal and the TE module based on n-type PbS and commercial p-type Bi2Te3 developed in this work. g The cooling effect ΔTmax of the PbS-based TE module and the power generation efficiency η of the Pb1.004S0.6Se0.4 + 0.001Cu single-leg device.

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