Formation and Properties of Junction Diode - Physics

This is a physics video for Grade 11-12 students about p-n junction diode, its properties, characteristics and uses. The combination of p-type and n-type semiconductors results in a junction. When a p-type semiconductor is joined with n-type semiconductor, the resultant junction formed is called a p-n junction diode.

[elearnin]

Thank you! Will post more videos on semiconductors, don't forget to subscribe to our channel for the latest video updates :)

[wakzy]

Most complete explantion ever, and I've been looking for 40 years ! Many thanks.

[AmjadAlhindi]

Quick, simple, and super informative. That's a semiconducting video right there!

[ROCKET_SCIENCE_]

It's absolutely wrong, pn junction is not formed by joining a p-type and n-type semiconductor rather it is done by creating a p-type and n-type region on a single slab of intrinsic semiconductor by doping

[elearnin]

Glad to know the video helped..thanks :)

[simson]

That is the first video to explain so well (and truly) the phenomenon that I see. Thx.

[engrnasir]

if electrons and holes neutralizes each other then how positive and negative charges are created? may be i am not getting the point. plz if someone can explain it to me

[PrateekBundel-zo]

1:35 at this point why the remaining electrons and holes on the boundary of the depletion region are not recombining? i mean, the electric field is fron n side to p side so the remaining electrons should go the the holes on the right(n side). i know friends this may be a silly question but i am getting confused someone please answer. i request

[huilingzheng]

Thank you so much for the video, it was amazing. Just a question about the PN junction, when we apply a voltage across the PN junction, why does the current only flow in one direction and not the other? Thank you :)

[MThe]

@huiling Zheng The reason for that is when you bias a p-n junction diode using a battery for example, and set the battery in such a way that will ensure the diode will go into reverse mode the depletion region actually gets bigger, therefore preventing currentfrom passing through. On the other hand when the positive side of the battery is applied at the p junction in the diode the depletion region gets smaller as the voltage is increased until it tottaly disappears when the applied voltage is at 0.7 (Von)

[YoramMbaleson]

Out of all the videos i tried on the internet this one stands out

[jasmeetsidhu]

Now. I know the concept before one day of my exam. Thanku sir god bless you

[teamneha]

Nicely explained n yeah such a relaxing voice😍❤🤤

[McCulsky]

This video is simply great! Clear explanation. Please keep making videos about semiconductors

[hashamhexa]

Holes are not moved but are created hypothetically when electron move to p type contact

[siddhantp.]

thanks for sharing! best video i've seen in the last 17 years

[vishalakshi]

Best explanation with animation rating 5/5❤️

[ahmedshoaib]

In the Cathode (N) Side we have 1 Extra Electron and On the Anode(P) side we have 1 requirement of Electron.
So 1 Electron Transfer from N side to P side due to which both becomes stable,
The N type which gave the Electron gains A net positive charge (because the Total Number of Proton is 1 more than the Number of Electron {{as 1 Electron is transferred to P side}} )
The vice versa Happens on P side It receives 1 Extra Electron and Gains Net Positive Charge.
P.S.: For those who keeps forgetting Basics like Me.

[rajeevsingh]

Explanation is great and easy to grasp, however how this PN junction behaves whilr conducting electricity can also be explained ..
Thanks 😊

[medharanjan]

So, we take two separate pieces(one p type and one n type) and join them together?