Bi2Te0.45Se2.55
semiconductor· Bi2Te0.45Se2.55
Bi₂Te₀.₄₅Se₂.₅₅ is a bismuth telluride–selenide solid solution, a p-type semiconductor belonging to the tetradymite family of thermoelectric materials. This composition represents an optimization within the Bi–Te–Se ternary system, where partial substitution of tellurium with selenium is engineered to enhance thermoelectric performance at mid-range temperatures (typically 300–500 K). The material is primarily investigated for direct thermal-to-electrical energy conversion and is used or under development in thermoelectric generators, waste heat recovery systems, and precision cooling modules where its figure of merit (ZT) and temperature stability offer advantages over unary bismuth telluride.
thermoelectric power generationwaste heat recoverythermoelectric cooling modulestemperature-stabilized semiconductorsmid-temperature energy conversion
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | 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.