KAg₂PS₄ is an experimental quaternary semiconductor compound combining potassium, silver, phosphorus, and sulfur into a mixed-anion chalcogenide structure. This material belongs to the family of silver-based sulfide/phosphide semiconductors under active research for solid-state ionic and photonic applications. While not yet commercialized at scale, compounds in this class are investigated for their potential in all-solid-state batteries, photovoltaic devices, and fast-ion conductors due to silver's high ionic mobility and the tunable bandgap available through multinary semiconductor design.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 6,742.8 | ksi | — | ||
Poisson's Ratio(ν) | 0.3600 | - | — | ||
Shear Modulus(G) | 2,119 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1372 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.020 | eV | — | ||
| ↳ | 1.057 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 11.03 | - | — | ||
| ↳ | 8.415 range 6.341–10.49median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.07251 | C/m² | — | ||
| ↳ | 0.4137 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -74.40 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.5373 | eV/atom | — |