Bi2 Te5 Pb2

semiconductor

· Bi2 Te5 Pb2

Bi₂Te₅Pb₂ is a lead-doped bismuth telluride compound belonging to the chalcogenide semiconductor family, engineered to modify the thermoelectric properties of the widely-used Bi₂Te₃ base material. This composition is primarily investigated in thermoelectric research and development, where lead doping is used to tune carrier concentration, reduce lattice thermal conductivity, and potentially improve the figure of merit (ZT) for power generation or refrigeration applications. The material represents an experimental formulation rather than a production-scale compound, and its development context reflects efforts to enhance thermoelectric efficiency beyond conventional Bi₂Te₃ for waste heat recovery and solid-state cooling devices.

thermoelectric power generationsolid-state cooling systemswaste heat recoveryresearch and developmentmaterial optimization studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	4,297.9	ksi	—
Shear Modulus(G)	2,274.2	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.03190	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2570	eV/atom	—

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.

Bi2 Te5 Pb2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control