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Aluminium antimonide

Aluminium antimonide
CAS number 25152-52-7
Molecular formula AlSb
Molar mass 148.8 g/mol
Density 4200 kg/m3
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.

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.

See also


    • 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
    This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Aluminium_antimonide". A list of authors is available in Wikipedia.
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