Na2TlSb — Properties & Data | MatWorld

Na2TlSb

ceramic

· Na2TlSb

Na2TlSb is an intermetallic ceramic compound composed of sodium, thallium, and antimony, belonging to the class of complex ionic or intermetallic ceramics. This material is primarily of research and exploratory interest rather than an established commercial product; compounds in this system are investigated for potential applications in thermoelectric devices, solid-state electronics, and specialized functional ceramics where the combination of these heavy p-block and alkali elements may offer unique electronic or phononic properties. Engineers considering this material should recognize it as a candidates-stage compound rather than a proven engineering solution, with relevance mainly to advanced materials development programs focused on novel thermal management or semiconductor applications.

thermoelectric researchsolid-state device developmentexperimental semiconductorsintermetallic compound explorationfunctional ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	26.73	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2000	-	DFT · OptB88vdW
Shear Modulus(G)	20.18	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.712	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.4790	eV	DFT · OptB88vdW
↳	0.9660	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	172.5	-	DFT · PBE
↳	112.6 range 36.82–188.4median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	36.48	-	DFT · OptB88vdW
↳	22.16	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.09000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.1400	me	DFT · OptB88vdW · 27°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.64	%	DFT · TBmBJ

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)	-0.3748	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.

Na2TlSb

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental