How does a P-N Junction Diode works? Explained through Animation

An attractive animation is presented in this video with complete voice description. This video explains complete process of diode working i.e. how holes and electrons behave inside the diode when it works.

[@averyandallthat]

Thank you. This is fantastic. I really helps me to see what is happening in real time in every part of the diode.

[@sasuke-sword-pubgmobile5645]

it is usefull...thank u ...soo much...... I've been studying this topic for 2 years....but just today I understood the concept.....once again thank u .....

[@hasanyahya9171]

Thank you for best presenation.

[@komalananya2096]

Amazing work👍

[@shivakumar-kw4hb]

Super ,good job, i am waiting for ur other videos...

[@thazhow1144]

Nice! Do you have an animation showing what happens when the diode is reverse biased?

[@sridharchitta7321]

You have made a nice video though I could sense some hesitation in some places like when you speak about how the forward bias affects the barrier (which you got right but can be stated more accurately). I suggest you refer to the books in the references below.
What is a pn junction ?
A pn junction allows current in one direction only. It blocks current in the reverse direction.
When a pn junction is formed, a potential barrier designated Vo comes into existence and is typically around 0.6 to 0.7 volts for silicon junctions.
When the barrier whose Vo is 0.7 volts is disturbed by applying a forward bias of say, 0.6 volts, the current increases and the increase becomes steep for small increments of the forward bias value a little greater than 0.68 volts. Large currents are observed when the forward bias is 0.69 volts which is closer to the barrier voltage of 0.7 volts.
The forward bias can never exceed the potential barrier voltage nor can it bring the barrier down to zero volts. That is the reason you seldom see current vs volt graphs of pn junction diodes beyond a volt or so.
How does the bias remain less than the barrier in an operational diode?
The voltage bias applied drops in the bulk neutral regions of the diode.
The current in a forward bias adjusts to fulfill the conservation of current law and the rate of recombination.
A detailed description of the pn junction with a distinct approach using surface charges, alignment of Fermi levels, creation of the barrier, the distinct processes of diffusion, drift, recombination and the influence of the electric field on the energies of electrons is provided in the following textbooks.
Electrostatics and circuits belong to one science and not two, that of electricity and magnetism. To know how they are unified visit this link
matterandinteractions.org/articles-talks/ and view the article 'A unified treatment of electrostatics and circuits. B. Sherwood and R. Chabay, unpublished. (1999)'
pdf.
For a live demonstration of surface charge and its effects in circuits visit
th-cam.com/video/U7RLg-691eQ/w-d-xo.html
For a detailed discussion of surface charge, coulomb's law, electric fields, fields of dipoles and other charge configurations, and parallel plates, and a distinct approach using the surface charge concept in the study of advanced topics of capacitance, currents, conservation of charge, conservation of current, superposition of fields, superposition of potential, simple dc circuit, magnetic fields, magnetic fields of a current element, straight wire, current loop, solenoids, biot-savart law, voltage, voltage source, difference between e.m.f. and potential difference, ideal voltage sources, resistors, how current branches in a parallel circuit, capacitors, inductors, Faraday's law, inductance, ac circuits, transmission lines, Lorentz Force law, motors, generators, p-n junction diodes, electromagnetic waves, antennas and radiation, new electrodynamic theories on the nature of the electric field, see "Electric and Magnetic Interactions" by Chabay and Sherwood
www.matterandinteractions.org
or
Fundamentals of electric theory and circuits by Sridhar Chitta
www.wileyindia.com/fundamentals-of-electric-theory-and-circuits.html
There is a "look inside" feature in the amazon.com webpage of the book "Fundamentals of electric theory and circuits" by Sridhar Chitta with a few pages of Chapter 1 which may be viewed and also which you may swipe left or press < icon to view the foreword, preface and Table of Contents. The contents of the above book by Sridhar Chitta, make a distinct unified approach to electrostatics and a few advanced circuits like coupling signals to amplifiers, lending precision and clarity to the topics which is not found in most text books.
The book comes alongwith a CD with animated power point presentations for all chapters and voltage regulator, RC phase shift oscillators and differential amplifiers included additionally.
For a lecture by Prof Ruth Chabay on surface charge in a simple dc circuit visit
th-cam.com/video/-7W294N_Hkk/w-d-xo.html
There is a full set of lectures beginning lecture 13 here on surface charges, electric fields, simple circuits, capacitance, inductance, faraday's law, motional emf, magnetic forces and more topics here
matterandinteractions.org/videos/EM.html

[@uniquecompetitiveclasses2745]

Niceandclearconcept

[@kij1832]

I am producing middle school technical subject learning materials.
I would like to use P-N diode animaion that you made as a class material.
Will it be used?

[@ayushgemini]

You said next video will be on reverse bias. I couldn't find it on your channel. Please send link if any....

[@rainfordhara6897]

ok good work

[@AmineAmine-qw4xx]

Amazing job, thank you

[@SourabhSharmaTheProfessor]

Welcome

[@pradgadagkar8557]

Good attempt

[@MrBat000]

so a diode allows current to pass through when activated Like a gate. so why wouldnt use a mosfat instead because a mosfat also allows current to go through when activated.

[@ashishkumaryadav333]

best never seen such a video .... but u must discuss about diffusion and drift current too

[@SourabhSharmaTheProfessor]

ok Ashish thanks

[@kogurirahul1682]

Super b

[@pavankumarp3012]

nice

[@SAURABHKUMAR-zi5ur]

Can you please upload photodiode and solar cell animation

[@radheykrishna5478]

it seems that this is a channel of surabhi sharma.

[@engin.electronics]

Super

[@nihaludesiri9438]

Gut

[@finallyy3959]

Tq

[@FireguyNtx]

BTW its region, and not reason. P region, not P reason, just saying. Only brought it up because I wasnt sure what you meant.

[@tamilplaychannel]

Haha.. That is their native accent.

[@saqibajmal7834]

also make video of reverse-bais

[@SourabhSharmaTheProfessor]

Ok, as soon as possible

[@namandhiman19]

Fab

[@bhaskararaopalli722]

hello bro, very nice explanation

[@animeshsingh7359]

best

[@SourabhSharmaTheProfessor]

thank you

[@82govind]

better understanding by the animation

[@SourabhSharmaTheProfessor]

Govind Shivbhakt thanks

[@sandipkori2400]

better

[@SourabhSharmaTheProfessor]

Thanks, please share

[@syedshah2142]

You're accent is really funny.
XD
Seemi instead of semi
Lol
And it's N region not reason
Hahahaha

[@gaurichopra1220]

Shut up racist

[@mr_dj_king_Mp_39]

Oh! Bhai Hindi mai samajh de

[@prabhatmishra5667]

This video is conceptually wrong. It contains minor mistakes.