Bi2 S4
semiconductor· Bi2 S4
Bi₂S₄ is a bismuth sulfide semiconductor compound belonging to the chalcogenide material family, characterized by layered crystal structure and moderate mechanical stiffness. This material is primarily explored in research contexts for optoelectronic and photovoltaic applications, where its bandgap and light-absorption properties position it as a candidate for solar cells, photodetectors, and thermal imaging devices. Engineers consider bismuth chalcogenides when seeking alternatives to lead-based semiconductors in environmental-sensitive applications or when designing layered heterostructure devices, though material availability and processing standardization remain active research areas.
thin-film photovoltaicsphotodetectorsoptoelectronic researchlead-free semiconductorsthermoelectric devicesadvanced materials research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | ksi | — | — | |
Shear Modulus(G) | — | ksi | — | — |
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.