Question

Explain the following with suitable examples:

13-15 group compounds

Answer 1

1. The 13-15 group compounds are semiconducting materials formed by combining elements from Group 13 (III) (like Al, Ga, and In) with elements from Group 15 (V) (like P, As, and Sb) of the periodic table. These are commonly known as III-V semiconductors.
2. Examples of 13-15 group compounds include Gallium Arsenide (GaAs), Indium Phosphide (InP), Gallium Phosphide (GaP), Aluminium Arsenide (AlAs).
3. GaAs semiconductors have a very fast response time and have revolutionised the design of semiconductor devices.
4. They frequently possess direct band gaps, rendering them exceptional for light-emitting uses.
5. Their high electron mobility enables rapid electronic switching and high-frequency performance.
6. Optoelectronics, telecommunications, and solar cell technologies widely use GaAs semiconductors.