Bi0.2Te3Sb1.8

semiconductor

· Bi0.2Te3Sb1.8

Bi₀.₂Te₃Sb₁.₈ is a bismuth–tellurium–antimony ternary compound belonging to the chalcogenide semiconductor family, engineered specifically for thermoelectric applications. This material composition is optimized for solid-state heat-to-electricity conversion and refrigeration, operating in the intermediate temperature range where it offers improved performance over binary Bi₂Te₃ through band structure tuning via antimony substitution. Engineers select this alloy variant when designing efficient thermoelectric generators, active cooling systems, or waste heat recovery modules where the specific Sb/Te ratio provides superior figure-of-merit compared to unmodified commercial thermoelectric compositions.

thermoelectric power generationsolid-state cooling and refrigerationwaste heat recoverytemperature sensing devicesspace and aerospace thermal managementintermediate-temperature TE applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.2800	eV	—

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.

Bi0.2Te3Sb1.8

Electrical Properties

Regulatory Screening

Environmental

Export Control