What is difference between PN junction diode and Zener diode?

What is difference between PN junction diode and Zener diode?

The main difference between the PN junction diode and the Zener diode is that the PN junction diode allows the flow of electron in one direction only, whereas the Zener diode allows the flow of electron in both directions.

What is the difference between normal PN junction diode and tunnel diode?

Unlike the ordinary p-n junction diode, the difference in energy levels is very high in tunnel diode. The depletion layer of tunnel diode is very small. It is in nanometers. So the electrons can directly tunnel across the small depletion region from n-side conduction band into the p-side valence band.

What is PN junction diode?

A p-n junction diode is two-terminal or two-electrode semiconductor device, which allows the electric current in only one direction while blocks the electric current in opposite or reverse direction. The p-n junction diode is made from the semiconductor materials such as silicon, germanium, and gallium arsenide.

What is application of PN junction diode?

Applications of PN Junction Diode

• p-n junction diode can be used as a photodiode as the diode is sensitive to the light when the configuration of the diode is reverse-biased.
• It can be used as a solar cell.
• When the diode is forward-biased, it can be used in LED lighting applications.

Why PN junction is called a diode?

A diode is called a diode because it has two distinct electrodes (i.e. terminals), called the anode and the cathode. A diode is electrically asymmetric because current can flow freely from the anode to the cathode, but not in the other direction.

What do you mean by PN junction diode?

A p-n junction diode is a basic semiconductor device that controls the flow of electric current in a circuit. It has a positive (p) side and a negative (n) side created by adding impurities to each side of a silicon semiconductor. The symbol for a p-n junction diode is a triangle pointing to a line.

Where we use pn junction diode?

p-n junction diode can be used as a photodiode as the diode is sensitive to the light when the configuration of the diode is reverse-biased. It can be used as a solar cell….Applications of PN Junction Diode.

Semiconductor Diode	Zener Diode
Extrinsic Semiconductors	Electric Field Lines

Why is pn junction called a diode?

What’s the difference between a PN junction diode and a Zener diode?

Key Differences Between PN-Junction and Zener Diode 1 The semiconductor which conducts only in one direction is known as the PN-junction diode. 2 The reverse current flow through the diode damage the PN-junction diodes. 3 The doping level of the PN-junction diode is low as compared to Zener diode.

What makes up the diode in a photodiode?

A photodiode is also made up of PN junction diode, but when the PN junction surface is placed in the light source, the charge carriers in the photodiode get energy, and they start moving. The movement of charge carriers in the diode results in the generation of electric current in the photodiode.

How is the PN junction diode used in rectification?

The PN junction diode is made up of semiconductor material. It is always conducted in one direction and hence used for rectification. The PN junction diode has two terminals namely anode and cathode. The current flows from anode to cathode.

What’s the difference between a diode and an led?

A diode is mainly used for rectification of AC supply and to allow a unidirectional flow of current. An LED is also a diode but is used to emit light when current passes through it. Although a diode, the LED has only around 5 volts reverse blocking voltage, so has poor rectification properties.