Ba4 Si2 Te8
semiconductor· Ba4 Si2 Te8
Ba₄Si₂Te₈ is a quaternary semiconductor compound combining barium, silicon, and tellurium in a layered crystal structure. This is a research-phase material primarily studied for thermoelectric and optoelectronic applications, where its moderate band gap and phonon-scattering properties make it a candidate for solid-state energy conversion and thermal management devices. Engineers consider this compound family when conventional semiconductors (Si, GaAs) or standard thermoelectrics (Bi₂Te₃, skutterudites) reach performance limits, particularly in applications requiring low thermal conductivity combined with electronic functionality.
thermoelectric power generationwaste heat recoverythermal management in semiconductorsoptoelectronic researchsolid-state cooling deviceshigh-temperature electronics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 3,812.9 | ksi | — | ||
Shear Modulus(G) | 1,986 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.091 | eV | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | -1.106 | 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.