Bi4Te7Pb is a bismuth telluride-based ceramic compound doped with lead, belonging to the family of thermoelectric materials derived from Bi2Te3 systems. This material is primarily investigated for thermoelectric energy conversion applications, where it serves as an alternative or complementary composition to traditional bismuth telluride thermoelectrics, with the lead addition potentially modifying electronic and thermal transport properties. The compound finds application in solid-state cooling and power generation near room temperature, and its development reflects ongoing research to enhance the performance-to-cost ratio and thermal stability of thermoelectric devices compared to conventional alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 4,734 | ksi | — | ||
Poisson's Ratio(ν) | 0.2500 | - | — | ||
Shear Modulus(G) | 3,192.3 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2723 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.4230 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -169.8 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00770 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.2671 | eV/atom | — |