AlSb — Properties & Data | MatWorld

AlSb

semiconductor

· AlSb

Aluminum antimonide (AlSb) is a III-V compound semiconductor with a zinc-blende crystal structure, formed from aluminum and antimony. It is primarily used in optoelectronic and high-frequency electronic devices where its direct bandgap and carrier mobility characteristics are advantageous. AlSb serves as a substrate material and active layer in infrared detectors, high-electron-mobility transistors (HEMTs), and millimeter-wave components, with particular value in space and defense applications where radiation hardness and thermal stability matter; it is less common than GaAs or InP in mainstream electronics but remains important for specialized infrared imaging and ultra-high-speed RF circuits.

infrared detectors and focal plane arrayshigh-electron-mobility transistors (HEMTs)millimeter-wave and terahertz devicesspace and radiation-hardened electronicsheterojunction substratesquantum well structures

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)3 entries	7,136.3	ksi	DFT
↳	7,314.3	ksi	DFT · OptB88vdW
↳	7,136.3	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.3437	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2600	-	DFT · OptB88vdW
↳	0.2496	-	DFT · PBE
Shear Modulus(G)3 entries	4,290	ksi	DFT
↳	4,354	ksi	DFT · OptB88vdW
↳	4,290	ksi	DFT · PBE

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
Thermal Conductivity(k)	44.72	BTU/(hr·ft·°F)	Measured

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.1479	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions	Source
Band Gap(Eg)3 entries	1.670	eV	Measured
↳	1.322	eV	DFT · OptB88vdW
↳	1.777	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	13.64	-	DFT · OptB88vdW
↳	12.45 range 11.80–13.10median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	12.38	-	DFT · OptB88vdW
↳	9.879	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2300	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.5400	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.5411	C/m²	DFT · OptB88vdW
↳	0.05672	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00639	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00403	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-248.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	256.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.76	%	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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Method

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.2431	eV/atom	DFT · OptB88vdW
↳	-0.2601	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.