What Is The Bandgap Of Aluminium Antimonide?

Aluminium antimonide (AlSb) is a semiconductor material that has a direct bandgap of 1.6 eV at room temperature.

The bandgap of a material refers to the energy difference between the valence band (the highest energy level occupied by electrons) and the conduction band (the lowest energy level that can be occupied by free electrons). In a direct bandgap material like AlSb, the minimum energy for an electron to transition from the valence band to the conduction band occurs through the absorption of a photon with energy equal to the bandgap energy.

The bandgap of AlSb makes it a useful material for electronic and optoelectronic devices such as solar cells, infrared detectors, and high-speed transistors. Additionally, AlSb is often used in heterojunctions with other semiconductors, due to its relatively small lattice constant and good crystal quality, which enables the growth of high-quality interfaces with other semiconductors.