Basic Electrical and Electronics Engineering: Unit III: Analog Electronics

Majority and Minority Charge Carriers

N type and p type Semiconductors

The electron-hole pairs are called thermally generated charge carriers. The number of these charge carriers is usually very small.

MAJORITY AND MINORITY CHARGE CARRIERS

The electron-hole pairs are called thermally generated charge carriers. The number of these charge carriers is usually very small. However an extrinsic semiconductor has a larger number of charge carriers. For instance an N-type semiconductor a large number of electrons. Besides this, N-type semiconductor also contains fewer number of thermally generated holes. Since the number of electrons, are much larger than the number of holes in a N-type semiconductor, therefore electrons are called majority carriers and holes a minority carriers. This is shown in fig.3.18.


Basic Electrical and Electronics Engineering: Unit III: Analog Electronics : Tag: : N type and p type Semiconductors - Majority and Minority Charge Carriers