PbTe
semiconductor· PbTe
PbTe (lead telluride) is an IV-VI narrow-bandgap semiconductor compound commonly used in thermoelectric devices and infrared detectors. It is valued for its ability to convert heat directly into electrical current and to detect infrared radiation, making it critical in waste-heat recovery systems, space-based instruments, and thermal imaging applications where traditional semiconductors fall short. Engineers select PbTe over alternatives like Bi₂Te₃ when operating temperatures exceed ~500 K or when infrared sensitivity in the mid-wave band is required, though its toxicity and lower mechanical robustness necessitate careful integration and encapsulation.
thermoelectric power generationinfrared detectorswaste heat recoveryspace instrumentationthermal imaging sensorshigh-temperature electronics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Thermal Conductivity(k) | — | W/(m·K) | — | — |
Verified Unverified Low confidence (<80%) Link to source
| 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.