Question

What metals are used in semiconductors?

Answer 1

Semiconductors:

• The substances whose conductivity lies between those of conductors and insulators are called semiconductors.
• The metals that are commonly used as semiconductors are Gallium arsenide ($\mathrm{GaAs}$), Germanium ($\mathrm{Ge}$), and Silicon ($\mathrm{Si}$).

Uses:

• Silicon is used in electronic circuit fabrication, manufacture of transistors, solar energy devices etc.
• Gallium arsenide is used in solar cells, laser diodes, and in integrated circuits.
• Germanium is used to manufacture rectifiers and transistors and is used as a fluorescent material.