In intrinsic semiconductors number of electrons and holes concentration are equal at room temperature. We know that there are two types of semiconductor materials: Intrinsic and Extrinsic semiconductors. As it is made of a crystal-like Silicon or Germanium. as it conducts only in one direction therefore it is used for the purpose of rectification. Materials that are used to make diode are: Germanium, silicon and germanium arsenide etc.Ī p-n junction is known as a Semiconductor Diode. Semiconductor diodes are two-terminal devices that consist of a p-n junction and metallic contacts at their two ends. but the most common diode used is a semiconductor diode.Ī diode has two terminals that have a low resistance to the flow of the current in one direction, there is low resistance on one side and high resistance in the other, thus restricting the flow of current in one direction. A semiconductor diode is the first diode that forms in semiconductor electronic devices, after that there were lots of new innovations takes place.
A diode is an electronic device having a two-terminal unidirectional power supply.
Diode cathode how to#
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