Bi4 Te4 W2 O20

ceramic

· Bi4 Te4 W2 O20

Bi₄Te₄W₂O₂₀ is a complex mixed-metal oxide ceramic composed of bismuth, tellurium, and tungsten oxides. This is a research-phase compound studied primarily for thermoelectric and electronic applications, as the bismuth-tellurium oxide family is known for moderate charge-carrier mobility and potential phonon-scattering effects that could improve thermoelectric efficiency in niche temperature ranges.

thermoelectric energy conversionwaste heat recoverysolid-state cooling researchhigh-temperature sensor materialsadvanced ceramics research

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.588	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.

Bi4 Te4 W2 O20

Other Properties

Regulatory Screening

Environmental