Aluminium antimonide

Aluminium antimonide (AlSb) is a <a href="/facts/Semiconductor/zFf3mGTE">semiconductor</a> of the group III-V family containing <a href="/facts/Aluminium/7wmR8jYE">aluminium</a> and <a href="/facts/Antimony/YsA7lVgT">antimony</a>. The <a href="/facts/Lattice_constant/h3gMKk6V">lattice constant</a> is 0.61 nm. The indirect <a href="/facts/Bandgap/IjIeh95l">bandgap</a> is approximately 1.6 <a href="/facts/Electron_volt/YMT1fqX9">eV</a> at 300 K, whereas the direct band gap is 2.22 eV.
Its <a href="/facts/Electron_mobility/aN3bco00">electron mobility</a> is 200 cm2·V−1·s−1 and hole mobility 400 cm2·V−1·s−1 at 300 K. Its <a href="/facts/Refractive_index/yjkzvgeE">refractive index</a> is 3.3 at a wavelength of 2 μm, and its dielectric constant is 10.9 at microwave frequencies.
AlSb can be <a href="/facts/Chemical_reaction/GpqWlKrz">reacted</a> with other III-V materials to produce ternary materials including <a href="/facts/Aluminium_indium_antimonide/n7TQRCRE">AlInSb</a>, AlGaSb and <a href="/facts/AlAsSb/XdLoJvSH">AlAsSb</a>.
Aluminium antimonide is rather flammable because of the reducing tendency of the antimonide (Sb3−) ion. It burns to produce <a href="/facts/Aluminium_oxide/wXM9P6pI">aluminium oxide</a> and <a href="/facts/Antimony_trioxide/b3LraQvL">antimony trioxide</a>.

Aluminium antimonide open-in-new

Aluminium antimonide