Schottky Barrier
Schottky barrier in different states
The energy difference between metal and semiconductor creates a region at the metal-semiconductor interface called the Schottky barrier. It is an electrical junction characterized by the presence of a barrier to the flow of electric charge carriers (electrons and holes) at this junction.
The Schottky barrier acts as a valve for electrons. When you apply voltage in one direction (forward bias), current flows easily through the wire to the electronic device, and that’s over for now. But when you apply the voltage in the opposite direction (reverse bias), the barrier will be higher and block the flow of electrons.
In forward bias the Schottky barrier has a low voltage drop, which means it conducts current with less current. Loss of energy. This is one of its advantages in electronic circuits.
Schottky Diode
The Schottky diode is popularly known as a hot-carrier diode, low-voltage diode, or Schottky barrier diode. It is a type of diode formed by the junction of a semiconductor with a metal. We know that in a PN junction diode, p-type and n-type semiconductors are joined collectively to form a PN junction. To the contrary, a Schottky diode replaces the p-type semiconductor with metals like aluminium.
Schottky diode has multiple characteristics which makes it a better choice over other diodes in the electronic industry. It displays characteristics like fast switching action and a low forward voltage drop. The symbolic representation of this diode, the construction of this diode, the energy band of the diode and what the V-I characteristic graph of this diode looks like.
Table of Content
- What is Schottky Diode?
- Schottky Diode Construction
- Working Of Schottky Diode
- V-I Characteristic of Schottky Diode
- Schottky Barrier
- Schottky Clamped Transistor
- Schottky Diodes in Logic Gates
- Characteristics of Schottky Diode
- Difference between Schottky and P-N junction Diode
- Applications of Schottky Diode
- Advantages of Schottky Diode
- Disadvantages of Schottky Diode
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