Description
| Material | PbS | PbSe | PbTe |
| Structure | Cubic | Cubic | Cubic |
| Density | 7.60 g/cm^3 | 8.15 g/cm^3 | 8.16 g/cm^3 |
| Thermal conductivity (at 25 deg C) | 0.03 W/cmK | 0.017 W/cmK | 0.0017 W/cmK |
| Refractive index (λ= 6 um) | 4.19 | 4.54 | 5.48 |
| Direct bandgap | 0.37 eV | 0.27 eV | 0.32 eV |