KSnAs

ceramic
· KSnAs

KSnAs is a ternary intermetallic ceramic compound composed of potassium, tin, and arsenic, representing a specialized class of semiconducting or semi-metallic ceramics with layered crystal structures. This material is primarily of research interest rather than established industrial production, investigated for potential applications in thermoelectric devices, optoelectronics, and solid-state physics where its electronic band structure and thermal properties may offer advantages in niche applications. Engineers would consider KSnAs when exploring next-generation semiconducting ceramics or when designing experimental devices that exploit the unique electronic coupling between its constituent elements, though material availability and processing maturity remain significant practical constraints compared to conventional semiconductor alternatives.

thermoelectric devices (research)semiconductor researchphotovoltaic materials (exploratory)solid-state physics studieselectronic material synthesishigh-pressure ceramics

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
27.69
GPa
Poisson's Ratio(ν)
0.2400
-
Shear Modulus(G)
17.27
GPa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
4.042
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.3960
eV
Dielectric Constant (Relative Permittivity)(εr)3 entries
14.16
-
14.63
-
12.22
range 10.79–13.65median of 2 measurements
-
Electronic Dielectric Tensor(ε∞)
Matrix (redacted)
-
Total Dielectric Tensor(ε)
Matrix (redacted)
-
Magnetic Moment(μB)
0.000
µB
Piezoelectric Modulus(eij)2 entries
0.2134
C/m²
0.4521
C/m²
Piezoelectric Stress Tensor(eij)
Matrix (redacted)
C/m²
Seebeck Coefficient(S)
-135.4
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
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom
Formation Energy(ΔHf)
-0.4681
eV/atom
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

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.