K2Cu2Sn2Se6
semiconductor· K2Cu2Sn2Se6
K2Cu2Sn2Se6 is a quaternary chalcogenide semiconductor compound combining potassium, copper, tin, and selenium in a layered crystal structure. This material belongs to the family of earth-abundant semiconductor compounds and is primarily studied in research contexts for photovoltaic and optoelectronic applications as a potential alternative to lead halide perovskites and other conventional absorbers. The combination of non-toxic, abundant elements makes it attractive for next-generation solar cells and light-emitting devices, though it remains largely in the experimental phase with ongoing investigation into crystalline quality, band gap engineering, and device integration.
photovoltaic absorber layerthin-film solar cellsoptoelectronic deviceslead-free semiconductorsresearch and development
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
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.