KYGeS4
ceramic· JVASP-40428· KYGeS4
KYGeS₄ is a layered metal germanium sulfide ceramic compound belonging to the family of two-dimensional materials and chalcogenides. This is a research-stage material investigated for its semiconducting and photonic properties rather than a conventional engineering ceramic. While not yet in mainstream industrial production, KYGeS₄ and related germanium sulfides are explored for optoelectronic devices, nonlinear optical applications, and solid-state physics research where their layered crystal structure and tunable band gap offer potential advantages over conventional semiconductors.
photonic researchnonlinear optical devices2D material researchsemiconductor opticsmaterials characterizationsolid-state physics
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.102 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.322 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 12.01 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.1505 | C/m² | — | ||
Seebeck Coefficient(S) | -304.5 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.377 | 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.