GeTePb₂Se₂ is a quaternary chalcogenide ceramic compound belonging to the family of lead-tellurium-selenium materials, which are primarily investigated for thermoelectric and optoelectronic applications. This material is largely in the research and development phase rather than established in high-volume production, but the lead-tellurium-selenium family is valued for its narrow bandgap properties and potential use in mid-infrared detection, thermal energy harvesting, and solid-state cooling devices where conventional semiconductors fall short. Engineers consider these compounds when designing systems that must operate in harsh thermal environments or convert waste heat to electrical power at moderate temperatures.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 5,672.4 | ksi | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 2,887.7 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2639 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.6870 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02480 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4090 | eV/atom | — |