Bi0.2Sb1.8Te3

semiconductor

· Bi0.2Sb1.8Te3

Bi0.2Sb1.8Te3 is a bismuth-antimony telluride compound belonging to the thermoelectric material family, engineered with a specific Bi/Sb ratio to optimize phonon scattering and carrier transport. This alloy composition is widely used in solid-state thermoelectric cooling and power generation devices, particularly where compact thermal management or direct thermal-to-electrical energy conversion is needed without moving parts; it represents a mature alternative to pure Sb2Te3 with improved performance characteristics for mid-range temperature applications.

thermoelectric cooling moduleswaste heat recovery systemstemperature stabilization (electronics)small-scale power generationcryogenic thermal isolationprecision thermal management

Compliance & Regulations

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

Units:

si imperial

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

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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.

Bi0.2Sb1.8Te3

Electrical Properties

Regulatory Screening

Environmental

Export Control