Bi2Te1.5Se1.5

semiconductor

· Bi2Te1.5Se1.5

Bi₂Te₁.₅Se₁.₅ is a ternary bismuth telluride-selenide compound belonging to the layered chalcogenide semiconductor family, engineered as a solid solution that combines bismuth telluride and bismuth selenide phases. This material is primarily developed for thermoelectric applications where temperature gradients drive electrical current or vice versa, exploiting the moderate band gap and phonon-scattering properties of mixed anion compositions. The Te/Se ratio optimization aims to enhance the thermoelectric figure of merit (ZT) and broaden the operational temperature window compared to pure Bi₂Te₃, making it relevant for waste heat recovery systems, cooling modules, and power generation in harsh environments.

thermoelectric cooling moduleswaste heat recoverytemperature-gradient power generationsolid-state refrigerationthermal energy harvestinghigh-performance heat pumps

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.2900	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.

Bi2Te1.5Se1.5

Electrical Properties

Regulatory Screening

Environmental

Export Control