Multiple choice

Which compound is used in infrared detectors, infrared LED's and lasers?

  1. Gallium antimonide

  2. Gallium arsenide

  3. Antimony trioxide

  4. Aluminium oxide
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A Correct answer
Explanation

Gallium antimonide (GaSb) is a semiconducting compound of gallium and antimony of the III-V family. It has a lattice constant of about 0.61 nm. GaSb can be used for infrared detectors, infrared LED's, lasers,  transistors and thermophotovoltaic systems.

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