Bi₂Te₅Pb₂ is a bismuth telluride-lead compound ceramic belonging to the family of bismuth chalcogenides, which are primarily known for thermoelectric applications. This material is typically encountered in research and development contexts rather than widespread industrial production, as it represents an experimental composition aimed at optimizing thermoelectric performance through lead doping of the bismuth telluride system. The bismuth telluride family is valued in thermoelectric cooling and power generation where thermal-to-electrical or electrical-to-thermal conversion efficiency is critical, and lead incorporation is investigated to modify band structure and reduce thermal conductivity while maintaining electrical conductivity.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 4,297.5 | ksi | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 2,274.2 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2719 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.03000 | eV | — | ||
Seebeck Coefficient(S) | -84.43 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.06960 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.2568 | eV/atom | — |