Pr3SiAgSe7 is an intermetallic compound combining praseodymium, silver, silicon, and selenium—a rare-earth metal composite in the research phase rather than an established commercial material. This compound belongs to the family of quaternary semiconducting or semi-metallic intermetallics, typically investigated for potential applications in thermoelectric devices, photovoltaic materials, or specialized electronic components where mixed-valence metal coordination offers tunable electronic properties. Engineers would consider this material only in exploratory R&D contexts where novel bandgap engineering or thermal-to-electrical energy conversion is the target, as industrial maturity, scalable synthesis, and established processing routes are not yet established.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2180 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.503 | eV | DFT · OptB88vdW | ||
| ↳ | 2.093 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr) | 16.33 | - | DFT · OptB88vdW | ||
High-Frequency Dielectric Constant (ε∞)(ε∞) | 6.538 | - | DFT · TBmBJ | ||
Electron Effective Mass(m*e) | 1.000 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 1.443 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.1635 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.00124 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.000943 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -206 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 266.5 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 20.97 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.402 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data