Lead Telluride (PbTe)-Powder

Characteristic




Lead telluride is a compound of lead and tellurium (PbTe). It crystallizes in the NaCl crystal structure with Pb atoms occupying the cation and Te forming the anionic lattice. It is a narrow gap semiconductor with a band gap of 0.32 eV.




Chemical formula：PbTe

CAS#:1314-91-6

Molar mass：334.80 g/mol

Appearance：gray cubic crystals.

Density：8.164 g/cm3

Melting point：924 °C (1,695 °F; 1,197 K)

Solubility in water：insoluble

Band gap：0.25 eV (0 K)

                    0.32 eV (300 K)

Electron mobility：1600 cm2 V−1 s−1 (0 K)

                                6000 cm2 V−1 s−1 (300 K)

Crystal structure：Halite (cubic), cF8




Application




PbTe has proven to be a very important intermediate thermoelectric material.




In addition, PbTe is also often alloyed with tin to make lead tin telluride, which is used as an infrared detector material.