K4GeS4
semiconductor· K4GeS4
K4GeS4 is a quaternary chalcogenide semiconductor compound composed of potassium, germanium, and sulfur. This material belongs to the family of metal sulfides and germanium-based semiconductors, which are primarily of research interest for optoelectronic and photonic device development. While not yet established in high-volume industrial production, K4GeS4 and related germanium chalcogenides are investigated for their tunable bandgap properties and potential in infrared optics, nonlinear optical applications, and solid-state photovoltaic systems where conventional semiconductors reach performance limits.
infrared optics and detectorsnonlinear optical devicesphotovoltaic researchsolid-state electronics (experimental)chalcogenide material systems
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | — | eV | — | — | |
| ↳ | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
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) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.