K4 Co2 S4
semiconductor· K4 Co2 S4
K₄Co₂S₄ is a transition metal sulfide semiconductor compound containing cobalt and potassium, representing a layered or framework structure typical of multimetallic chalcogenides. This material belongs to an emerging class of synthetic semiconductors under active research investigation for potential optoelectronic and catalytic applications, though it remains primarily in the developmental stage rather than established industrial production. Its notable characteristics stem from its mixed-valency composition and sulfide chemistry, which can enable tunable electronic properties and surface reactivity compared to simpler binary semiconductors.
photocatalysis researchhydrogen evolution catalystsnext-generation semiconductorsenergy storage device developmentexploratory materials chemistrythin-film electronics research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | Pa | — | — | |
Shear Modulus(G) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
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.