semiconductor

What is n-type semiconductor?

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N-type semiconductor When a small amount of pentavalent impurity is added to a pure semiconductor it is known as n-type semiconductor. The addition of pentavalent impurity provides a large number of free electrons in the semiconductor crystal. Pentavalent impurity: Arsenic, Antimony Such impurities which produce n-type semiconductor are known as donor, impurities because they donate … Read more

What is P-type semiconductor?

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What is P-type semiconductor? when a small amount of trivalent impurity is added to a pure semiconductor, it is called p-type semiconductor. The addition of trivalent impurity provides a large number of holes in the semiconductor. Trivalent impurities: Gallium, Indium, Boron ,Aluminum The impurities which produces p-type semiconductors are known as acceptor impurities because the … Read more