Bi2Te2S
ceramic· JVASP-3903· Bi2Te2S
Bi₂Te₂S is a layered chalcogenide ceramic compound combining bismuth, tellurium, and sulfur—a derivative of the well-established Bi₂Te₃ thermoelectric family. This material is primarily investigated in thermoelectric and energy harvesting research, where the partial sulfur substitution for tellurium is engineered to tune electronic and phononic properties for improved performance in waste heat recovery systems. The layered crystal structure makes it a candidate for exfoliation into 2D nanosheets, positioning it at the intersection of bulk thermoelectrics and emerging van der Waals materials for advanced thermal management and solid-state cooling applications.
thermoelectric deviceswaste heat recovery2D nanomaterial researchsolid-state coolingenergy harvestingthermal management systems
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Exfoliation Energy(Eexf) | — | meV/atom | — | — |
Verified Unverified Low confidence (<80%) Link to source
| 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 | — | — | |
Dielectric Constant (Relative Permittivity)(εr) | — | - | — | — | |
Magnetic Moment(μB) | — | µB | — | — | |
Piezoelectric Modulus(eij) | — | C/m² | — | — | |
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.