Question

Which compound is used in making LED?

Answer 1

L.E.D:

• L.E.D stands for the light emitting diode.
• It emits light when the current flows through a semiconductor.

Compounds/Materials in L.E.D:

• Some metals that are used in L.E.D are arsenic, indium as well as gallium.
• The compound that is used for making LED is Gallium arsenide phosphide $\left({\mathrm{GaAs}}_{1-\mathrm{x}}{\mathrm{P}}_{\mathrm{x}}\right)$.

Gallium arsenide phosphide:

• It is an alloy of gallium arsenide and gallium phosphide.
• Gallium arsenide phosphide is used for manufacturing different colored LEDs such as orange, red, or yellow.