Band Gap and Semiconductor Current Carriers | Intermediate Electronics
Ғылым және технология
What makes a semiconductor a semiconductor? For that matter, what makes an insulator an insulator and a conductor a conductor? It all comes down to how much energy it takes to pull an electron away from its nucleus! We delve into this and also talk about how not only electrons move but also the lack of electrons, or holes, move. It's kinda weird but pretty cool. Check it out!
Subscribe to CircuitBread for more videos on intermediate electronics! This video is on our website, as well as the animations and a written transcript: www.circuitbread.com/tutorial...
00:14 Parts of an Atom
00:37 Valence Band
01:00 Band Gap
01:19 Three Types of Materials used in Electronics and their Band Gaps
02:00 Current Carriers in a Semiconductor
03:34 Summary
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Пікірлер: 227
Hi everyone - if you want to read about this at your own pace with embedded animations, check out the tutorial on our site: www.circuitbread.com/tutorials/band-gap-and-semiconductor-current-carriers Have a great one!
I cannot describe how happy i am to understand this just before my exam. Thank you so much.😄
@CircuitBread
4 жыл бұрын
Awesome! Good luck on your exam!
@xsraut
4 жыл бұрын
@@CircuitBread thank you.
@wajeedullahmarwat4955
3 жыл бұрын
same i'm so confused before watching that video but when i watched it now my concept is fully clear
@shaluyadav4952
3 жыл бұрын
Same here
@StartUp_Pakistan999
6 ай бұрын
Same here
Three teachers around here couldn't even explain a singular minute of this as good as how you did, God bless you.
Bravo! Finally found someone who can explain it in simple terms! You are the best!
Thank you for such a clear explanation! Straight to the point
@CircuitBread
4 жыл бұрын
Thanks! Semiconductors have never been my strong point so we were trying to make something straightforward enough that I could understand. 😄
I love how simplistic and up to the point you are thank you so much!!
You did such an awesome job at describing this! I appreciate these videos and hope you do more in the future! :D
@CircuitBread
5 жыл бұрын
Thanks, Jennifer!
I finally understood what is the hole current!!! Thank you so much! I've always asked to my professor why the holes can flow and I never had a satisfied answer. It turns out to be electron current but at valence shell!
Thank you, the most simple and complete in same time explanintion i've ever seen
Wow! The way you explained it so simply and visually was incredible! Thanks a lot for making this, you really cleared up a lot of confusion I had.
@CircuitBread
4 жыл бұрын
Awesome, glad to hear it helped!
Thanks for the video. Simple, plain and short.
That actually helped, i can't how much i googled it this is the first video that actually helped
this is best, simple and easy way of teaching Band gap and semiconductor. I like your videos👍
Clearly explained 🤩🤩... Those animation videos removed all my confusions and doubts that have from past many years...
@CircuitBread
3 жыл бұрын
Glad it helped out and made things more intuitive!
Amazing video! Cleared the hole concept
These videos are fantastic! Why haven't I seen you before now?! Thank you
I had a hard time understanding this concept. This helped a lot. Thanks
I came here to understand band gap and got more than I hoped for. Tthe effort put purely into explaining the concept as apprehensible as possible is heart warming. I thought I'd subscribed to your channel already but was glad I wasn't so I could do it now. Awesome job, sir!
@tohtorizorro
3 жыл бұрын
BTW... in my head, I picture charge carrier holes as bubbles in water (since they're just 'empty space' in the 'actual substance'). Would you say this is a reasonable metaphor? I'm just curious why I can't recall seeing this anywhere else while some people seem to hold on to all sorts of water analogies even when the atom model might be easier to grasp.
@CircuitBread
3 жыл бұрын
Thanks for the kind comments! And yes, I think that would be a great metaphor!
Very well explained. Thank you!
This is such an awesome video!
Beautiful video!
Thank you for making this video!
Concise and clear !!!! THANK YOU!
Thank you so much for your amazing explanation!!!
I am wo happy I watched this. Thanks so so much.
thanks for this simple explaning
Very helpful explanation. Thanks!
very nice visual explanation thanks
i am soooooo glad to find you. thanks, you saved my life
@CircuitBread
4 жыл бұрын
Hi Irem - glad we could help!
That was very helpful. Thank you
Thank u sir. This video cleared my doubts on hole current
Awesome explaination ❣️
Great explanation!
Excellent explanation!
very clear presentation, I like it.
Great work, helped lot. thank you
Thank you very much for the clear and precise explanation. 😊
@CircuitBread
2 жыл бұрын
You're welcome!
Great job mate! Thanks a lot!
YOU ARE HEAVEN SENT.. THANKYOU SOO MUCH
very nice explanation thank you circuit board
you are a great teacher ...........no words to say...thankyou...................so..... much..............dint understand when watched many videos..but only this made me know.........thankyou.......😁😁😁🤩🤩🤩
THANK YOU FOR VISUALIZATION
Amazingly clear explanation. Thank you
@CircuitBread
3 жыл бұрын
Thanks Mevyn!
Still creating a bang !After 5 years tooo..... Thanks a lot.....
Thank you for great explanation, it helped me a lot! :)
@CircuitBread
4 жыл бұрын
Fantastic - I'm glad it helped!
Amazing explaination🤗🤗🤗🙌👍
Awesome video, it was so helpful 😀 💯💯💯💯💯💯
im gratful with your explaination :)
i watched many videos trying to understand bands, gaps, and how that relates to electrons, but all the videos i have watched up till now miss the importance of describing WHERE the conduction band is relative to the valence band on an atom. If they leave out one little piece of information it sends you crazy trying to understand the rest. Thank you so much for your video, now I can continue.
@CircuitBread
3 жыл бұрын
Thanks Aussie! I have definitely been there before and am glad we were able to help eliminate that confusion/frustration for you!
Thank you for clarifying my doubts.........
It's really very helpful
I'm currently looking into Thermal generators and conductors, this video is very awsome your sound quality is ver nice and you speak very freely i love this video pls make more you should have an way bigger audience with this Video Quality and information
@CircuitBread
Жыл бұрын
Thank you!
this was so clear! thank you
@CircuitBread
4 жыл бұрын
Awesome, glad to hear it helped!
Amazing very nice explanation have finally understood
@CircuitBread
4 жыл бұрын
Awesome!
Nicely Explained sir
such a good teacher and explanation mate.
@CircuitBread
4 жыл бұрын
Thanks Iñigo! I appreciate the feedback!
Great explanation, thank you!
@CircuitBread
5 жыл бұрын
Thanks for the feedback, we really appreciate it! We put a lot of stuff out there and we hope it's useful for people!
clear and direct
@CircuitBread
4 жыл бұрын
Thanks!
Awesome video, thank you
@CircuitBread
4 жыл бұрын
Thanks, glad it helped!
very clear
Subscribed and liked bro good vid... I already know a bit about band Gap and transparency, just trying to refresh. Came across a vid about it from an English bloke and he was explaining with plastic balls from a kids play place... I found your vid right after.. you ever notice that Brits are smarter and more informed than the average person here, but I think that our best of the best outshine over here
@CircuitBread
4 жыл бұрын
Glad to be of service! I think I watch so much BBC television that I don't even notice accents now unless I'm consciously thinking about it. As for comparing the US to Great Britain, I'm not gutsy enough to jump into that conversation! 😂
Thank you ❤️ 2days before exam searching for a animated video to understand semiconductor 😂♥️♥️
Nice explained sir🙏🙏🙏 I understood it very clearly and thanks for clearing my doubt. Sir Love from India ❤️
@CircuitBread
3 жыл бұрын
You're welcome!!
thanks very much.
you did great
Great for test review! Also, a Fermi level video would come in handy
@CircuitBread
4 жыл бұрын
Thanks Luis! Y'know, we talked about doing a Fermi level video but didn't think there was quite enough content to create a video out of it. So Susie put together a quick overview on our website, let me know what you think: www.circuitbread.com/ee-faq/whats-fermi-level-and-why-is-it-important-in-a-semiconductor
Perfection.
Por favor, sigue haciendo vídeos. Son muy útiles.
@CircuitBread
5 жыл бұрын
¡Gracias! Estamos planeando hacer más videos sobre diodos y transistores pronto, y esperamos que ayuden.
Thanks buddy
What a nice voice! Great explanation, too.
@CircuitBread
3 жыл бұрын
Thank you! This is going to go straight to Josh's head, though... 😉
Thanks man lots of love from India
@CircuitBread
Жыл бұрын
Thanks!
GREAT !!!!!!!!!!!!!!!!!!!!!!!!!!!
Amazing work!
@CircuitBread
4 жыл бұрын
Thanks Teresa!
@MithileshKumar-cz9ox
3 жыл бұрын
Well said
@MithileshKumar-cz9ox
3 жыл бұрын
Hey! does your syllabus matches with ours CBSE? By the way in which standard do you study?
Could you explain how to define CBM and VBM when a trap state or a middle state is generated in the band gap?
thank u soooo much so helpful
@CircuitBread
4 жыл бұрын
You're welcome, I'm glad it helped!
Basically my whole day of studying summarized into 4 minutes.
bravo !!!!
Loved your voice Mr
@CircuitBread
3 жыл бұрын
Thank you!!
wonderful
Great explanation of the band gap. Thank you! Do you have knowledge in the perovskite semiconductor field?
@CircuitBread
4 жыл бұрын
Hi Melody! Sorry, I only recognize the word perovskite from doing some reading about LEDs and solar panels - nothing in depth at all.
Greaaaaaaaaaaaaat effort. keep it up
@CircuitBread
3 жыл бұрын
Thanks!
Thank you so much Now , I can dye happy 😊
Great!
Is there a practical experience with passing an electric current through a silicon chip doped with boron? P_ type
Holes(vacant space) in valence band Near by electron in valence band moves to make current in valence band
Nice explanation - keep going and make more.
so if i am right free electron moves and create holes while other electrons fill the hole and that is how the current ae transpoted?
Nice
Great video. But, what do you mean by giving electrons energy? How do you define energy?
I might have missed it but does the conduction band show up anywhere in the Bohr model/diagram? I feel like it appeared in this video without being introduced.
@CircuitBread
2 жыл бұрын
The conduction band is based on the Bohr model, but it wasn't touched on in this video. I've considered doing another video focusing on that, but I would need to get back to Dr. Campbell for her specialist help because I know I couldn't explain it well enough with my current understanding.
Yeah it is helpfull🎉😊
Sir explain about direct and indirect Band gap in semiconductor
So will hole current still be present if no voltage source is applied? I understand it still needs some energy as mentioned but is that provided by the temperature or a voltage source?
@CircuitBread
3 жыл бұрын
You'll get what's called diffusion current when there's no voltage source ( www.circuitbread.com/ee-faq/what-is-the-difference-between-drift-and-diffusion-currents-in-a-semiconductor ) and it will be both hole and electron current. There are two factors to consider, though. One, whether there are any free carriers - which is dependent on temperature and doping, allowing electrons and holes to move around. And then if there are free carriers you have the second factor. And that is if there are forces causing those free carriers to move, which is either diffusion or a voltage source.
Hi, Thank you very much for your explanation, I understood the valence band is the outermost shell of an atom, then what is exactly the conduction band, is it one of the shells of an atom? or where the free electrons are present that we call C.B?
@CircuitBread
8 ай бұрын
The conduction band is made up of electrons that are NOT firmly attached to any atoms but just kinda "float" around in what is considered a "sea of electrons". Hopefully that clarifies things!
Thank you for your videos. The presentation is really nice and it makes me curious about the other videos ! :D I still have a question if you have time. Why large band gap semiconductors like SiC are better than Si ? I mean if a narrow band gap needs less energy to make the electrons goes into the conduction band, why SiC would be better than Si as SiC has a larger band gap ?
@CircuitBread
Жыл бұрын
That's a great question and one that I'd rather refer you to a good article rather than try and explain it in a KZread comment. I recommend going to: www.wolfspeed.com/knowledge-center/article/importance-of-silicon-carbide-wide-bandgap I don't know who this company is but they have a good explanation on this topic. I hope it helps!
@denisleo9069
Жыл бұрын
@@CircuitBread Thank you for your answer and I hope that your channel will work as good as you want :)
Can U Please Make A Breif Video About How Band Gap Develops In Any Atom Or Material With 2 To 3 Example.! I'll be Grateful.!
When there are equal number of free electrons and holes will it be classified as electron flow or hole flow? During electron flow it will also create hole flow right? when hole flow it will also be electron flow right? How do define whether something is electron flow or hole flow?
I really wanted to see those toasts pop up :)
@CircuitBread
2 жыл бұрын
Someday! Someday... 😀
What is difference between narrow band gap and wider band gap in semiconductor?
Us the band gap big or the electrons or the bound is strong between the electron and the nuclei