Sb2Te3

semiconductor

· Sb2Te3

Sb₂Te₃ is a binary chalcogenide semiconductor compound belonging to the V-VI family of materials, commonly used as the active material in thermoelectric devices and phase-change memory applications. It is industrially established in thermoelectric cooling modules and thermal energy harvesting systems, where its moderate band gap and phonon scattering characteristics make it competitive for temperature control and waste heat recovery in electronics and automotive systems. The material has also gained research attention as a topological insulator and for potential layered device architectures, positioning it at the intersection of conventional thermoelectrics and emerging quantum materials.

Thermoelectric cooling modulesWaste heat recoveryPhase-change memory storageThermal management in electronicsTopological insulator researchInfrared optical devices

Compliance & Regulations

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

Units:

Property	Value	Unit	Conditions	Source
Exfoliation Energy(Eexf)	78.13	meV/atom	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Thermal Conductivity(k)2 entries	3.008	BTU/(hr·ft·°F)	Measured · 27°C
↳	3.008	BTU/(hr·ft·°F)	Measured

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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2241	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions	Source
Band Gap(Eg)2 entries	0.04500	eV	DFT · OptB88vdW
↳	0.1900	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)	55.14	-	DFT · OptB88vdW
Electrical Conductivity(σ)	8,196.7	S/cm	Measured · 27°C
Electrical Resistivity(ρe)	0.00000122	Ω·m	Measured · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)3 entries	0.00559	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00422	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
↳	0.00325	W/(m·K²)	Measured · 27°C
Seebeck Coefficient(S)3 entries	-189.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	173.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
↳	63.00	μV/K	Measured · 27°C
Thermoelectric Figure of Merit(zT)	0.1875	-	Measured · 27°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.

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

Filter by

Method

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.1309	eV/atom	DFT · OptB88vdW
↳	-0.1171	eV/atom	Measured

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.

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

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.

Sb2Te3 — Properties & Data | MatWorld