KAg2SbS4
semiconductor· KAg2SbS4
KAg2SbS4 is a quaternary sulfide semiconductor compound containing potassium, silver, and antimony. This material belongs to the family of multinary chalcogenides, which are primarily investigated for optoelectronic and photovoltaic applications due to their tunable bandgaps and ionic-electronic dual conduction pathways. As a research-phase compound, KAg2SbS4 is of interest in the semiconductor community for non-linear optical devices, solid-state ion conductors, and next-generation photovoltaic absorber layers, though industrial adoption remains limited compared to established alternatives like CdTe or perovskites.
thin-film photovoltaicsnon-linear optical devicessolid-state ionic conductorsresearch semiconductorsinfrared optoelectronicsnext-generation solar absorbers
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 41.83 | GPa | — | ||
Poisson's Ratio(ν) | 0.3600 | - | — | ||
Shear Modulus(G) | 11.78 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.141 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.200 | eV | — | ||
| ↳ | 0.2440 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 13.41 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.1178 | C/m² | — | ||
| ↳ | 0.3876 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -73.66 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02150 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4305 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.