TiCoSb — Properties & Data | MatWorld

TiCoSb

Name: TiCoSb
Brand: MatWorld

semiconductor

· TiCoSb

TiCoSb is an intermetallic semiconductor compound combining titanium, cobalt, and antimony, belonging to the half-Heusler alloy family. This material is primarily investigated for thermoelectric energy conversion applications, where it can directly convert waste heat into electricity or enable solid-state cooling; it is notable for its potential to operate at elevated temperatures where conventional semiconductors degrade, making it attractive for recovering heat from industrial processes and vehicle exhaust systems. While currently in research and early development stages rather than high-volume production, TiCoSb and related half-Heuslers represent a promising alternative to lead-based and bismuth telluride thermoelectrics, particularly for applications requiring mechanical robustness, thermal stability, and reduced material toxicity.

thermoelectric power generationwaste heat recoverysolid-state cooling deviceshigh-temperature energy harvestingautomotive thermal managementresearch semiconductors

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	142.0	GPa	DFT
↳	142.6	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	75.15	GPa	DFT
↳	72.68	GPa	DFT · OptB88vdW

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
Density(ρ)	7.424	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.9500	eV	Measured
↳	1.071	eV	DFT · OptB88vdW
↳	1.065	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	32.04	-	DFT · OptB88vdW
↳	31.72	-	DFT · PBE
↳	25.24 range 19.86–30.61median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	21.77	-	DFT · OptB88vdW
↳	22.04	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	2.430	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.440	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.1620	C/m²	DFT · OptB88vdW
↳	0.6512	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00220	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00348	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-408.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	459.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.38	%	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)	-0.6541	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

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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.

TiCoSb

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