Conceptual Understanding of Semiconductor Basics: Holes, Doping, and P-N Junctions
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- Опубликовано: 7 окт 2015
- Originally made for the Breakthrough Junior Challenge.
All knowledge was obtained for free, online, from multiple sources including other RUclips videos.
Here, I attempt to explain concepts that took me over a month to understand, in under 10 minutes. All the sources I found had only partial explanations that were either fragmented or went into too much detail and complicated calculations.
I tried to simplify everything as much as I could and explain the topics intuitively.
A basic understanding of atomic theory is assumed.
Did you like the video? Did you see something that I should have done better? Did you understand everything? If not everything, then how much?
Compliments? Insults? Jokes? Suggestions? Bars of gold?
Comment down below to make sure I get them!
This the most helpful video to build up my concept of P-N junction
I am really thankful for this 🙏
I spent hours reading this concept on my textbook but you made me understand within 10 minutes.....!!!
Cool video...
I couldn't understand the concept of depletion but now I got it you are a very nice teacher thank you
You simplify a complex subject excellently
Thanks
The best video explaining the diode. Thanks dude.
This is the best video so far I have watched about PN junction. Thnkx, you explained in details.
a really profound and comprehensive video about PN junctions
I laughed when you said “so what why is this important” !! I finally understand a lil bit but was thinking the same thing at that exact moment 😂😂😂
I really enjoyed your video and got to understand P-N junction, I used to get confused when somebody mentioned P-N junction. Thank you very much indeed.
This is by far the best video I've seen on this topic before. Thanks!!!
What an amazing explanation! Thank you for your effort!
You are an awesome teacher.You have just made me understand the concept very nicely and easily and the best video on p n junction i have ever watch is yours one.Keep doing great jobs like this.
wow best video ever found in utube to understand PN junction
4:34 immediately thumbed up
thanks dude, best video I could find on explaining this.
Very nice explaination physics devices that never seen before!
Thanks, great explanation! really helped me understand the electron hole flow thing
never had such a great teacher thanks man
One of the best video on semiconductor diode concept.
SIr, you are, simply, a genius!
This video was great and has just helped me alot with my semiconducting thermocouple extended essay. Thanks man
Very very good, thats the real explanation i was looking for, thank u very much. keep it up.
superb basic explanation about what's happening inside the junction thank you
Learnt more in this than 2 hours of lecture. thanks!
Wonderful, you're a golden god my friend. And like you said in the description, when trying to learn this concept at first a lot of information online goes into too much detail for the beginner level. You're video was very helpful :thumbs_up:
EXCELLENT VIDEO. Thank you for sharing! You have a knack for teaching(:
Nicely done!
well done, thanks for apparent explanation
Thanks for such detailed explanation
great effort. well done.
Why did you stop making videos? You are so good! I watched a lot of videos on this topic before I found yours and only you explained it well enough to help me understand. I need a lot of details to get these things and you provided them in one perfect video! I subscribed to your channel because I still hope you will change your mind and publish new videos. Thank you very much for this one :)
Hey, thanks a lot! Ive learned from you a very useful thing!
Gongrantulation!!!At last someone mention the neutreal state and the atomic mass.Very helpfull video...and sory about my english
Great video. Thanks
just great, i got it finally..thanks!
I was really having a great difficulty in understanding this concept........but ur video helped me a lot.......n now m able to tell others about this topic........great job........keep doing this work.......love ur video
awesome video.... helped me a lot
awesome description
Thank you!!
The readings provided in my class for solar cells didn't have this explanation, and I was frustrated.
good explanation, thanks!
thx for this video like your job ...a beautiful teacher...
great job ..sir.. superb..
As a beginner, this video is really useful for me. Thank you to author
Good video!
thanks to the creator of this video ... really helpful for me
Superb and very helpful thank you
superb video
Very good explanation
dana na na dada !
best beginning ! :)
very usefull.Thnks!
Thanks!!!
Thank you
Dope !!
This is good.
it was really helpfull thanks man .....
Niceeee explination, thx🙂️
Wonderful presentation. Do you have a same style video on anodes?
Thank you.
very nice
nice concept.. tq
Thanx ... I finally got it... but what is the role of drift current? before biasing
Thanks❤
Thanks for the video. In a normal circuit with a direct current, the current is going only on one way. So, in that kind of circuit, what is the advantage of a diode, if the electrons go just one way anyway ?
There is a mistake at 7:56. - "Electrons are attracted to masvie number of holes in depletion region". Holes are charge carriers but depletion region is region without any charge carriers and we hav =e in depletion region only positive ions and negative ions.
So the positve thermal of the battery give holes And the negative thermal of the battery give electrons ?So when we reverse bias the electrons of the junction come to the positive thermal of the battery and the negative thermal of the battery make holes of the p type junction come to it Is that correct ?
Base on the explanation of this video means that a hole keep moving in a single doping crystal. Is this true ? Thank
What will happen to the holes if subjected to magnetic field
God bless you.
Nice
Great video, thanks!
One question, why to use a semiconductor and not a conductor in first place? Is it about price, or there is a physical reason there?
Three years later and here is your answer!
Semi-conductors are not used as wires. They are not as conductive as convential conductors, such as metals, and also far more expensive to scale to the length of wire you would need. But, they have different extremely useful properties that are used to perform many other electronic tasks.
In this video, he explains how a PN junction can function as an electrical component called a diode, which is an electronic device that only lets current flow in one direction. This alone is an extensively in electronic circuits. As mentioned in the video, you can now turn AC power into DC power. Whereas a conductor, such as wire, will always just let current flow in both directions. A diode can also be used in electrical protection circuits. For example, if you connected a battery the wrong way round to a device, a diode could be used to make sure only that only when the battery is wired the correct way round that current can flow. Therefore protecting your circuit.
PN junctions can also be used to create light emitting diodes (LEDs) which is a light emitting device, which produces light far more efficiently than simply heating up a conductor until it glows does.
Most importantly, using PNP or NPN junctions, you can also form transistors, which are electronically controlled switches and can also act as amplifiers. Transistors are the basis of every electronic device in modern day. Your phone, computer, calculator uses millions if not billions of transistors to perform logical operations. And each transistor, is built up of a structure of differently doped semi-conductors.
Hope this explains the difference and importance of semi-conductors compared to regular conductors! In essence, one is for moving electricity around, and the other, is used to carry out useful operations. A semi-conductor can function as very bad and very expensive conductor, but a conductor can not do what a semi-conductor does.
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I look forward to hearing from you.
Many thanks,
i dont think holes are massless.
Do you?
I am really enjoying this but I don't get why when you put the Negative terminal to the N type side, the electrons are not repelled. And how can there be a massive amount of holes in the depletion region? the depletion means there are no charge carriers of either type in there...is it be cause the hole diode is being flooded from left by more holes?
❤️
Hello! I'm working on solar panels for my school project. I need a bit of help understanding a few things. I'd be very grateful if you could help me! thanks!
Intro sound🤘🤘🤘🤘🤘😂
Why did you stop uploading videos? :(
That was a very well made video. Thank you for teaching.
I thought I had an undasting I'm a novice but not anymore thanks