In4Bi2S9
ceramic· JVASP-29238· In4Bi2S9
In₄Bi₂S₉ is a quaternary chalcogenide ceramic compound belonging to the indium bismuth sulfide family, characterized by mixed-valence metal cations and sulfide anions in a layered crystal structure. This material is primarily of research and developmental interest for optoelectronic and thermoelectric applications, where its narrow bandgap and layered architecture offer potential advantages in light absorption, charge transport, and phonon scattering compared to binary or ternary sulfides. It represents an emerging class of multinary sulfide ceramics being explored for next-generation energy conversion and photovoltaic technologies.
thermoelectric devicesphotovoltaic researchinfrared opticssolid-state electronicsexperimental semiconductorsenergy harvesting
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — | |
Seebeck Coefficient(S) | — | µV/K | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | eV/atom | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.