Question

What are p-type and n-type semiconductors?

Answer 1

1. Doping is the process of adding impurities to a semiconductor. The conductivity of semiconductors is increased by adding the impurities.
2. When a trivalent impurity is added, the semiconductor is termed as p-type. The majority of charge carriers are holes in p-type semiconductors.
3. When a pentavalent impurity is added, the semiconductor is termed as n-type. The majority of charge carriers are electrons in n-type semiconductors.