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Aluminium antimonide

Aluminium antimonide
Identifiers
CAS number	25152-52-7
Properties
Molecular formula	AlSb
Molar mass	148.8 g/mol
Density	4200 kg/m³
Hazards
Flash point	?°C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Aluminium antimonide (AlSb) is a semiconductor material of the III-V family containing aluminium and antimony. The lattice constant is 0.61 nm. The indirect bandgap is approximately 1.6 eV at 300 K, whereas the direct band gap is 2.22 eV.

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Electron mobility is 200 cm²·V⁻¹·s⁻¹ and hole mobility is 400 cm²·V⁻¹·s⁻¹ at 300 K. Refractive index is 3.3 at 2 µm wavelength. The dielectric constant is 10.9 at micrtowave frequencies.

AlSb can be alloyed with other III-V materials to produce the following ternary materials: AlInSb, AlGaSb and AlAsSb.

References

The references in this article would be clearer with a different or consistent style of citation, footnoting, or external linking.

Microwave dielectric constant of aluminium antimonide, K Seeger and E Schonherr, Semicond. Sci. Technol. vol. 6 pp. 301-302 (1991) doi:10.1088/0268-1242/6/4/013

Categories: Semiconductor materials | Antimonides | Aluminium compounds | III-V compounds