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.

PbTe_MSDS.pdf