Bi1 Te3

semiconductor

· Bi1 Te3

Bi₁Te₃ (bismuth telluride) is a binary intermetallic compound and narrow-bandgap semiconductor belonging to the V-VI family of materials. It is the archetypal thermoelectric material, prized for its ability to convert heat directly to electrical current (Seebeck effect) and to pump heat when current is applied (Peltier effect), and is widely used in commercial thermoelectric cooling and power generation devices. Engineers select Bi₁Te₃ over alternatives because it offers the best room-temperature thermoelectric performance among practical materials, making it the industry standard for thermoelectric modules despite its brittleness and toxicity concerns that drive ongoing research into competing materials.

thermoelectric cooling moduleswaste heat recovery and power generationprecision temperature control (scientific instruments)electronics thermal managementportable cooling and heatingdeep-sea and aerospace thermal systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00190	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.04300	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.

Bi1 Te3

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control