Explain pn-junction diode, Physics

Assignment Help:

PN-Junction Diode:

Introduction:

An electronic device which is made by linking together P-type semi-conductor and N-type semiconductor is known as p-n junction diode or a semiconductor diode. It permits the current to flow in one direction only.

Construction:

1.  A p-n junction diode or a semiconductor diode is fabricated by adding a pentavalent impurity (antimony) at the one end and a trivalent impurity (Boron or Indium) at the other end of a germanium crystal.

2. A junction is formed because of the flow of electrons n-type and p-type material and holes from p-types to n-types material and a junction is created which is p-n Junction.

3. The barrier is setup at the junction which stops further flow of free electrons from n-type to p-type and holes from p-type to n-type material.

4. The barrier is known as the junction barrier or potential barrier (0.1 - 0.7 V). The region of potential barrier is known as depletion region.

5. When p-n junction diode is linked to an external voltage source, it permits current to flow in one direction only.

 


Related Discussions:- Explain pn-junction diode

Define laplace correction, He customized Newton's formula suppose that prop...

He customized Newton's formula suppose that propagation of sound in gaseous medium is adiabatic process. For adiabatic method

The voltage control, The Voltage Control A voltage controller, also kno...

The Voltage Control A voltage controller, also known as an AC voltage controller or AC regulator is an electronic module which is based on either thyristors, SCRs, TRIACs or IG

Examples of newton third law of motion, EXAMPLES: (i) When the book is ...

EXAMPLES: (i) When the book is lying on a table, it exerts a downward force on the table (because of its weight). This force is known as action. The table exerts an upward forc

What are the reasons for loss of residual magnetism, What are the basic rea...

What are the basic reasons for loss of residual magnetism? How do you get it? What is the requireable and maximum DC voltage is to be applied to get back the residual magnetism?

Vectors/forces, A swimmer swims across a 20-meter-wide river at 0.3 m/s. Th...

A swimmer swims across a 20-meter-wide river at 0.3 m/s. The river is running at 0.1 m/s. What is resultant velocity of the swimmer, and at what angle with respect to his original

How is polymer fibers terminated, How is polymer fibers terminated? PMM...

How is polymer fibers terminated? PMMA fiber single ends can be of some types always depending upon the nature of the conductor and the last application. A Simply cut fiber wit

Define some factors which cause a system to oscillate, Write down the facto...

Write down the factors which force a system to oscillate?

Calormetry, in water equivalent how the temperature or water and solid equa...

in water equivalent how the temperature or water and solid equal?

Define sound waves, The energy to which the human ears are sensitive is nam...

The energy to which the human ears are sensitive is named as sound. In general all parts of waves are produced in an elastic material phase, Irrespective of while these are listen

5/14/2013 2:21:32 AM

Thanks for suggesting me this answer, appreciate your knowledge. 

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd