Bi4Te3 — Properties & Data | MatWorld

Bi4Te3

ceramic

· JVASP-18487· Bi4Te3

Bi₄Te₃ is a bismuth telluride-based ceramic compound belonging to the chalcogenide family, engineered primarily for thermoelectric applications. This material is widely used in thermoelectric cooling modules, power generation systems, and temperature control devices where its ability to convert thermal gradients into electrical potential (Seebeck effect) is leveraged. Bi₄Te₃ and related bismuth telluride compositions are industry-standard choices for solid-state thermoelectric devices because they offer superior thermoelectric efficiency at room temperature compared to alternatives, making them essential for applications requiring compact, vibration-free thermal management without moving parts.

thermoelectric cooling moduleswaste heat recoverytemperature control devicespower generation systemsthermal management electronicscryogenic applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.085	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.03400	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00520	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00214	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-182.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	130.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1733	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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.

Bi4Te3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental