K4 Cu2 Se8 Ta2
semiconductor· K4 Cu2 Se8 Ta2
K4Cu2Se8Ta2 is a complex quaternary selenide compound combining copper, tantalum, and potassium in a layered crystal structure. This is a research-phase semiconductor material being investigated for its potential in photovoltaic and thermoelectric applications, leveraging the tunable band gap and layered topology of mixed metal selenides. While not yet commercialized, compounds in this family are of interest for next-generation energy conversion devices where alternatives like conventional CdTe or CIGS solar cells face efficiency or toxicity constraints.
photovoltaic researchthermoelectric devicessemiconductor thin filmslayered material researchenergy conversionmaterials exploration
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| 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.