Semiconductors 1: intrinsic & extrinsic semiconductors (Higher Physics)

Рет қаралды 139,376

Күн бұрын

Higher Physics - first in a series of 3 videos on semiconductors. This video covers intrinsic semiconductors, band theory and doping to form n-type or p-type semiconductors.
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Пікірлер: 122

@elendor3428 4 жыл бұрын

I've been trying to understand this for the past week. You broke it down in 8 minutes. Fantastic explanation!

@MrSmithsPhysicsonline 4 жыл бұрын

Fantastic comment - thank you!

@florenckaf Жыл бұрын

I knew somewhere on youtube there must be a great explanation that's understandable, among all those other videos that aren't that. Now I found it. Thank you so much!

@MrSmithsPhysicsonline Жыл бұрын

What a nice comment - thank you very much! Glad you found it useful.

@stuthomas3593 3 жыл бұрын

Fantastic that you take the time to explain these topics to kids and parents alike... especially now with the dreaded home schooling, yes I'm a parent trying to stay a step ahead of my kids just now :)

@MrSmithsPhysicsonline 3 жыл бұрын

Thank you - this video in particular took a long time to put together. Still, I often use it with my own classes and it's nice to know that they're helping pupils all over. Are you a Teacher yourself? I could do with learning Python to help with some of the robotics projects I've done on my STEM channel.

@anasxyz 3 жыл бұрын

i have been trying to understand this for the past couple of days and i couldnt until i found this video. great explanation!!

@MrSmithsPhysicsonline 3 жыл бұрын

It's a tricky subject - even trickier to try and explain it simply.

@carmel_studio 5 жыл бұрын

thank you very much, Mr Smith! much better explained than in any revision guide!!!

@MrSmithsPhysicsonline 5 жыл бұрын

Glad you liked it & found it helpful!

@robertoaraiza7434 6 жыл бұрын

Thank you so much!. I have more 20 years working as an electronic engineer but i like to watch this kind of content as it was the first class.

@MrSmithsPhysicsonline 4 жыл бұрын

Wow - now that's a compliment! Glad you liked the video. Thank you.

@sudeepreddy5130 3 жыл бұрын

Now I am in my first electronics class!😁😁

@LoganSZN 4 жыл бұрын

This video helped me to no end for work related to my Apprenticeship, thank you very much.

@MrSmithsPhysicsonline 4 жыл бұрын

Glad it's helping - what's the apprenticeship?

@owencraig9084 5 жыл бұрын

quality mate. will be using these vids a lot

@MrSmithsPhysicsonline 5 жыл бұрын

Thanks - these 3 videos took so long to make, so I'm glad they helped!

@nadiakhairi7184 3 жыл бұрын

Thank you very much. You covered a long lecture in some seconds by amazing way. Lots of love from Libya💓

@MrSmithsPhysicsonline 3 жыл бұрын

Glad it was helpful! All the best from sunny Scotland.

@jeahknutsen5239 3 жыл бұрын

Clear explanation... plus I already fell in love with the yer wee accent!

@MrSmithsPhysicsonline 3 жыл бұрын

That's the Aberdeen twang you're hearing - fit like min?

@JC-db8nd 3 жыл бұрын

I have been trying to understand this exact lesson for 6 years since high school and college. Now I'm preparing for my licensure exams and I found your channel very helpful. Please keep making very informative and well-explained content. Thank you so much.

@MrSmithsPhysicsonline 3 жыл бұрын

Glad it was helpful! It took me quite a while to get all the content down to 3 videos and make it as clear as I wanted.

@Nxck2440 Жыл бұрын

Great lesson, this is a fascinating topic which I didn’t learn in school but understood this just fine! Thank you :) gonna watch your lesson on pn junctions now

@MrSmithsPhysicsonline Жыл бұрын

Excellent - glad you liked it. Thanks for the comment.

@testval 5 жыл бұрын

Thank you very much for this, my entire class struggled to get our heads around this.

@MrSmithsPhysicsonline 5 жыл бұрын

Glad you found it helpful - it's a tricky subject and most pupils find it difficult. Make sure that you look for some past paper questions on semiconductors so that you can familiarise yourself with what might come up.

@alaveroA 3 жыл бұрын

Thank you mr. Smith!

@MrSmithsPhysicsonline 3 жыл бұрын

Glad you found the video helpful - thank you for the comment.

@freed9513 5 жыл бұрын

This lesson helped me so much aaaaaa thank you!

@MrSmithsPhysicsonline 5 жыл бұрын

Cheers!

@knogardreruza 4 жыл бұрын

HQ video ! good job !

@MrSmithsPhysicsonline 4 жыл бұрын

HQ comment - thank you!

@prof.narayanasirimuthu1188 Жыл бұрын

You’re amazing , thank you so much !

@MrSmithsPhysicsonline Жыл бұрын

Glad it helped!

@aligunes-lo5ls 3 жыл бұрын

Really good explanation 💙 thank you

@MrSmithsPhysicsonline 3 жыл бұрын

Thank you - glad you liked it.

@sudeepreddy5130 3 жыл бұрын

Really amazing explanation!

@MrSmithsPhysicsonline 3 жыл бұрын

Glad you think so - this is a series of 3 videos which took a long time to research. I use them myself when teaching the topic!

@ryanharris7891 4 жыл бұрын

Finally some1 who can explain this, top job mate :) cheers

@MrSmithsPhysicsonline 4 жыл бұрын

It took a lot of work to make a series of videos that explain this topic - they help me a lot when I'm teaching Semiconductors to my class as well! Glad you found it useful.

@ryanharris7891 4 жыл бұрын

@@MrSmithsPhysicsonline the hard work shines through :)

@topudey43 3 жыл бұрын

Many many thank you sir for your helpful discussion about semiconductor.... No doubt about semiconductor after looking your video .. Love from my heart ❣️❣️❣️ From**Bangladesh (Sylhet) ❣️❣️❣️❣️

@MrSmithsPhysicsonline 3 жыл бұрын

It's my pleasure - it's a tricky subject so I'm glad it helped.

@blairy1424 3 жыл бұрын

Great explanation, helped a lot

@MrSmithsPhysicsonline 3 жыл бұрын

Glad it helped - thank you!

@sadiaazhar1847 5 жыл бұрын

You are some lad mr smith, cheers for this! :)

@MrSmithsPhysicsonline 5 жыл бұрын

You're too kind!

@sadiaazhar1847 5 жыл бұрын

@@MrSmithsPhysicsonline no, YOU are too kind!! your videos have helped so much

@TSSsniper 4 жыл бұрын

Thank you sir for clearing my doubts . U r amazing sir... Love from INDIA..

@MrSmithsPhysicsonline 4 жыл бұрын

My pleasure - glad you liked it!

@bragnourgorof5924 3 жыл бұрын

And love from Luxembourg as well.

@gamieo5117 4 жыл бұрын

You are the best teacher

@MrSmithsPhysicsonline 4 жыл бұрын

I keep telling the kids that, but they don't all believe it (yet).

@uttamkumbhar8106 4 жыл бұрын

Thanks a lot sir.

@MrSmithsPhysicsonline 4 жыл бұрын

Glad you liked it.

@nehirtek 3 жыл бұрын

This topic seemed unlearnable to me until i watched this video, thanks a lot

@MrSmithsPhysicsonline 3 жыл бұрын

Thank you. I'm teaching this to my own class tomorrow and will probably show the video to them - it makes teaching the topic easier too!

@ely7150 5 жыл бұрын

Thank you!!! I needed this for my trial exams

@MrSmithsPhysicsonline 5 жыл бұрын

Glad it helped - hope the exam goes well!

@ely7150 5 жыл бұрын

@@MrSmithsPhysicsonline Thanks!

@iainmurdoch8459 6 жыл бұрын

You are some boy, Mr Smith

@MrSmithsPhysicsonline 6 жыл бұрын

True - a physics teaching machine!

@annalyncaromayan7570 29 күн бұрын

i had a final interview nextweek, and I don't know what's day is. but i try my best to understand this conductors and insulator, hope i can explain it clearly on my interview

@MrSmithsPhysicsonline 29 күн бұрын

Best of luck with the interview. All the best!

@vachan-maker 2 жыл бұрын

Thanks this lesson helped me. 😀

@MrSmithsPhysicsonline 2 жыл бұрын

Glad to hear that!

@ninisanjay6638 3 жыл бұрын

thanks so much!

@MrSmithsPhysicsonline 3 жыл бұрын

You're welcome!

@hamdirihab3319 2 жыл бұрын

Thanks a lot, Greeting from Tunisia

@MrSmithsPhysicsonline 2 жыл бұрын

Hello from sunny Scotland - glad you found the video useful.

@divyaperiyasamy1499 5 жыл бұрын

thank you sir

@MrSmithsPhysicsonline 4 жыл бұрын

Thank you - all the best!

@shalinirao1520 3 жыл бұрын

It's really good explanation

@MrSmithsPhysicsonline 3 жыл бұрын

Thank you - I found it difficult to make this video. I did a lot of research so had a good understanding of semiconductors (better than I have now). The tricky bit was working out how I would explain it as clearly as I could. Glad you liked it!

@saketgame4285 5 жыл бұрын

Nice lecture , that's what i wanted for my weekend exam 😊

@MrSmithsPhysicsonline 5 жыл бұрын

They're giving exams at the weekend? That's not fair - weekends are for cycling and playing on the computer!

@saketgame4285 5 жыл бұрын

I wish , I'll have once after completing this two years of college.

@ahmedmostafa2412 Жыл бұрын

thanks

@MrSmithsPhysicsonline Жыл бұрын

You're welcome!

@malikyawarshafi1641 2 жыл бұрын

Thank you man .make more videos

@MrSmithsPhysicsonline 2 жыл бұрын

Thank you, I will!

@user-lu9kv3jl1y 5 жыл бұрын

Soooooo NICE

@MrSmithsPhysicsonline 4 жыл бұрын

Thank you - all the best!

@hafizhashir5853 4 жыл бұрын

Thanks

@MrSmithsPhysicsonline 4 жыл бұрын

You're very welcome!

@snehamathivanan7679 4 жыл бұрын

Thanks a lot, Sir...very clear explanation ...

@MrSmithsPhysicsonline 4 жыл бұрын

Thank you! It's a tricky topic, so I hope this helped explain it.

@snehamathivanan7679 4 жыл бұрын

@@MrSmithsPhysicsonline please make more such videos on semiconductor,Sir....if time permits..

@MrSmithsPhysicsonline 4 жыл бұрын

The 3 videos I made cover the basics of semiconductor theory as taught in the Higher Physics course. What would you like another video to cover? It's a tricky subject so I might make another if it's of use and I've got time. Thank you for the comment.

@dimple_styles19oneD 3 жыл бұрын

Somewhat late...to come across your video...but thank you so much...love from Kerala, India ❤️

@MrSmithsPhysicsonline 3 жыл бұрын

It's never too late for Physics! Glad you found it useful - all the best from Scotland.

@beingkashmiri145 4 жыл бұрын

It's was really helpful thanks love from Pakistan sir keep it up

@MrSmithsPhysicsonline 4 жыл бұрын

Thank you - love from Bonnie Scotland!

@pavansangle1019 4 жыл бұрын

Nice

@MrSmithsPhysicsonline 4 жыл бұрын

Thanks - glad you liked it!

@GrandMarshalGarithos 6 жыл бұрын

Dope video. Why wouldn't you have a dopant with a donor level in the conduction band rather than below it?

@MrSmithsPhysicsonline 6 жыл бұрын

True that!

@yusufrumi1626 6 жыл бұрын

Cheeers mate

@MrSmithsPhysicsonline 4 жыл бұрын

Thank you - all the best!

@hyunmyunglee8962 2 жыл бұрын

Sir, what is the thing making the conduction that is taking place? The electrons that has jumped to the conduction band? Or the motion of wholes created in the valence band??

@MrSmithsPhysicsonline 2 жыл бұрын

Both are responsible for conduction in the semiconductor.

@surendraparikh39 2 жыл бұрын

U r 😎😎😎 keep it up 🙏🙏

@MrSmithsPhysicsonline 2 жыл бұрын

Thanks ✌️

@nellvincervantes6233 3 жыл бұрын

Why hole produce positive charge without changing the number of protons of silicon? Will it not violate conservation of charge? 🤔🤔

@MrSmithsPhysicsonline 3 жыл бұрын

The hole is just thought of as a positive charge, although it's actually the absence of an electron at that position in the crystalline lattice. The semiconductor is still electrically neutral.

@TheCreepersAlive 4 жыл бұрын

in the course spec, it says some metals have partially filled valence bands and other metals have overlapping valence and conduction bands. it also says those with partially filled valence bands have higher conductivity than those with overlapping bands. how could this be if conduction requires electrons in the conduction band but the valence band isn’t even full?

@MrSmithsPhysicsonline 4 жыл бұрын

In order to conduct, a material must have free electrons within its conduction band or holes in its valence band.

@cosettea1986 6 жыл бұрын

So if enough heat is given to a insulator, will it conduct?

@MrSmithsPhysicsonline 6 жыл бұрын

I think I responded to this question before but I'd made a mistake in assuming you were talking about conduction of heat rather than electrical conduction. Insulating materials will increase in conductivity as temperature increases but, depending on the material, they may actually start to disintegrate before there is any noticeable change. It all depends on the material properties of the insulator and the band gap.

@nurr7162 6 жыл бұрын

it is possible but since the energy will have to be so great it will damage the component

@dhanunjayrao7493 3 жыл бұрын

When will u give as a live class bro

@dhanunjayrao7493 3 жыл бұрын

When will u give us a live class on topic motion in a straight line

@MrSmithsPhysicsonline 3 жыл бұрын

I'm hoping to do live lesson at some time. I just need to work out what I'm doing with my other channel and I'll need to write some content.

@Moon-ve9uc 3 жыл бұрын

صحيح كلشي مفتهمت بس عاشت ايدك

@MrSmithsPhysicsonline 3 жыл бұрын

Glad you understand everything - it's certainly a tricky subject. Thank you!

@vource2670 3 ай бұрын

I think I’m just terrible at this lol

@MrSmithsPhysicsonline 3 ай бұрын

Keep at it and you'll get better - find some past paper questions on the topic and read the marking scheme carefully. Also, watch the 3 semiconductors videos a second or third time - the points covered are straight from the questions that have been asked before and are most likely to come up again. Good luck!