P–n junction
principle · 1940 · Electric age
The boundary between semiconductors of different conductivity types.
Principles and materials it uses
- Semiconductor — uses. A junction between p- and n-type semiconductors.
- Semiconductor doping — uses. p- and n-regions are created by doping.
Where it is used
- Diode — is used in. A semiconductor diode is a p–n junction.
- Transistor — is used in. A bipolar transistor has two junctions.
- Laser diode — is used in. A p–n junction emits the light.
- Thyristor — is used in. A four-layer structure.
- Bipolar transistor — is used in. Two p–n junctions.
- Photodiode — is used in. Light generates a current in the p–n junction.
- Zener diode — is used in. It works on the breakdown of a p–n junction.
- IGBT — is used in. A transistor structure with p–n junctions.