Table 3.
Electrical conductivity, Seebeck coefficient, power factor, thermal conductivity, lattice thermal conductivity, ZT and temperature for several high performance Cu-Sn-S TE materials at high temperature, including Cu3SnS4- [43], Cu7Sn3S10- [44,45], Cu4Sn7S16- [46], Cu5Sn2S7- [37] based materials and Cu2Sn0.74Co0.2Sb0.06S3 in this work
| samples | σ (Scm−1) | S (μVK−1) | PF (μWcm−1K−2) | κ (Wm−1K−1) | κl (Wm−1K−1) | ZT | T (K) | |
|---|---|---|---|---|---|---|---|---|
| Cu3Sn1.2S4 | 200 | 180 | 6.5 | 0.69 | 0.39 | 0.75 | 790 | |
| Cu7Sn3S9.1Cl0.9 | 158 | 212 | 7.1 | 0.66 | 0.43 | 0.8 | 750 | |
| Cu7Sn3S9Br | 178 | 205 | 7.35 | 0.58 | 0.4 | 0.95 | 750 | |
| Cu4Sn7.5S15Se | 26 | 294 | 2.24 | 0.39 | 0.35 | 0.5 | 890 | |
| Cu2.075Sn0.925S3 | 285 | 85 | 10.3 | 2.5 | 0.55 | 0.28 | 700 | |
| This work | 390 | 165 | 10.4 | 0.94 | 0.41 | 0.88 | 773 | |