Multiple choice

The organometallic compound which can be alloyed with III-V materials is

  1. Aluminium arsenide

  2. Aluminium nitride

  3. Aluminium antimonide

  4. Indium antimonide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Aluminium antimonide (AlSb) is a semiconductor of the group 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. It can be alloyed with other III-V materials to produce the following ternary materials: AlInSb, AlGaSb and AlAsSb.

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