K1 Cu2 Se2
semiconductor· K1 Cu2 Se2
K₁Cu₂Se₂ is a ternary chalcogenide semiconductor compound combining potassium, copper, and selenium in a layered crystal structure. This material is primarily of research interest for thermoelectric and photovoltaic applications, where its narrow bandgap and mixed-metal composition offer potential for solid-state energy conversion. While not yet widely commercialized, compounds in this copper-selenium-alkali metal family are being investigated as alternatives to lead-based thermoelectrics and as light-absorbing layers in next-generation thin-film solar cells.
thermoelectric devicesphotovoltaic researchsolid-state energy conversionthin-film semiconductorslaboratory/experimental compounds
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.