Ba4 Hf4 S12
semiconductor· Ba4 Hf4 S12
Ba₄Hf₄S₁₂ is a quaternary chalcogenide semiconductor compound combining barium, hafnium, and sulfur in a complex crystal structure. This material represents an emerging class of multinary sulfides under investigation for optoelectronic and thermoelectric applications, where the combination of heavy metal elements and sulfur coordination offers tunable bandgap and phonon scattering properties. While primarily a research compound rather than a mature commercial material, Ba₄Hf₄S₁₂ is relevant to engineers exploring next-generation semiconductors beyond conventional binary sulfides, particularly where thermal management and electronic band engineering are critical design factors.
thermoelectric deviceswide-bandgap semiconductorsoptoelectronic researchthermal management materialsphotovoltaic absorber layersexperimental solid-state physics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | Pa | — | — | |
Shear Modulus(G) | — | Pa | — | — |
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.