Electronic Devices Lecture-6: The Energy-band Theory of Crystals

[@somemorepassinating484]

It's your passion to do. Most people let it down,but you are not from those. Hats off to you...

[@sigangsabaglari3606]

Excellent, after struggling in my 2nd year 3rd semester Semiconductor Devices course, finally I have found the answer to my questions in my 4th year 7th semester. Thank You.

[@tanujkasal]

Best lecture on energy band theory of atoms!

[@saurabhjha5401]

Thank you very much sir as i referred edc book by millman but now my concept of energy bands is clear. Thank you again. Keep it up making more vedios for edc.

[@prashanthjatavath9386]

Thank you sir for sharing your knowledge.. You made the concepts so clear and understandable ...

[@commonman8150]

thanks you, you made my day I was struck with the concept over long really long period of time thanks 😁

[@GSP-vd9yr]

Nice teaching sir it's not a wasting time u give correct clarity of students

[@rameshyeggidi650]

Sir i am very..........very happy with u r lectures of edc, analog ckts, digital electronics , ss and circuit theory and plsss give me lectures of Communication System, ofc ,EMTL.

[@manjeetgupta8462]

nice explanation of energy bands i have seen all previous video of your lecture. good base for edc.

[@saikumar-gd1xu]

Very good lecture easily understandable by any one,i was very much confused before but now it is very clear tq bro

[@vinothkumarm5953]

Better explanation.. Please keep posting videos like this. Subscribed.

[@nandini1017]

Do you mean to say that for closest dist, we have 2 levels, which merge into 1 as distance increases and Later levels become 2 when distance is further increased?

[@dishantverma3524]

Great content sir❤️

[@premkumaramanchi479]

really very useful video. thankyou sir

[@euthanasiaez6432]

Very well explained sir! 🙏🏽

[@srinivaschowdaryappasani2248]

great work.....salute to you

[@rvreddy737]

What is the meaning of A 2s 2p in the atom orbits sir plz give me reply

[@chetanteli_iitbombay]

You have explained very well,sir ,I want to know about it

[@srinivasreddy28]

Sir, have a doubt about the conduction band formation you didn't account for d-sub shell which are empty. You assume only 8N states in which 4 are filled and 4 doesn't

[@mahnaazmansoori1005]

Yee

[@pinkyjindal4666]

Thku so much for this lecture nd u have nice explanation

[@sandhya1029]

Thank you so much sir for clear explanation

[@seethasudheer619]

Sir this conduction and valancy band analysis we are doing for single atom? or a small peace of semi conductor Can u explain sir

[@UnacademyFlux]

Seetha Sudheer , for explanation we have to take single silicon atom..but when actually take p type or n type semiconductor then it is millions of si atoms will be there

[@nootanmeena8129]

Thanku so much Sir .... I understand very well

[@sujathagangireddy7198]

Sir, at 12:36 how is it 8N, 4N ?

[@Rajesh_Antil]

in 8n states there are 4n electrons in 2n states there are 2n electrons and in 6n states there are 2n electrons so 2n+2n=4n electrons & 2n+6n=8n states i think it's clear!

[@prasantkumarbehera296]

awasome lectures sir ji

[@abhisheksingh9086]

Thanks sir for video...

[@swaroopsuriboyina9911]

Thank you sir🙏🌸

[@jefferyaustin1571]

Hi Teacher, I have tried to understand the N state conditions and played the Video for many times, but no I could not understand. Can you speak slowly and explain the N states of band gap in a different way, 2N, 3N and P? Please slow down your English.

[@saikumar-gd1xu]

Sir please up load remaining lectures as soon as possible

[@jaanuamul5008]

Hii sir... thanks for this lecture sir..but audio was very low sir...pls make it high sir

[@nikhileshbadgujar9150]

What exactly happens ? And how the energy levels become a single energy band when we bring more silicon atoms closer. And how again become two different bands??.. what's internal mechanism behind it

[@UnacademyFlux]

Nikhilesh Badgujar see when we bring more atoms closer..some valence electrons are tightly bounded to the nuclues and some electrons are loosely bound..so we consider the tightly bounded electrons Valence band and loosely bounded are conduction band

[@radhikasingh4065]

Learning Is Everything I think sir according to u the behavior of valanced electron is not fixed,valanced electron are bounded with same attraction foce with nucleus for all silicon atoms

[@heavydriver7152]

sir please increase sound level it is very less from previous videos

[@vishalkumar-py2zg]

Why there is only 4N state in CB and VB

[@divya4752]

nice lecturer

[@rajivchoudhary3764]

Ty so much it was very helful

[@voiceboardmurali]

Nice explanation

[@aadityamohan6925]

sir please explain with respect to stability of semiconductors

[@VigneshKumar-pr2el]

Bro, i want to know how the energy gap is increasing and decreasing, and how

[@SumitKumar-mt6bc]

Vvery nice

[@somemorepassinating484]

Thanks For Support

[@udayputta711]

tyyy anna am alwys confusing with CB &VB

[@mayur9636]

But in conductors conduction band & valence band are overlapped each other.......?????

[@UnacademyFlux]

Mayur Yaa that depends on materials

[@dishimishra4085]

SIR PLEASE UPLOAD REST LECTURES OF EDC AS SOON AS POSSIBLE

[@pinkyjindal4666]

Nd ha sir kisne kha ki aapki English achi nhi but I think according to me it doesn't matter ur explanation is very good

[@saivamsi1480]

Not understood properly, sir could u plz help me in the concept

[@mdkalimullah4207]

U have to watch the lecture again and again

[@rahuldey742]

very nice sir

[@Shivamkh9]

Thanku sir🙏

[@linganagoudb5565]

Hii, Sorry this question does not belong to this part of lecture.. But I need this answer. Section 4: Signals and Systems Representation of continuous and discrete‐time signals, Shifting and scaling operations, Linear Time Invariant and Causal systems, "Fourier series representation of continuous periodic signals", Sampling theorem, Applications of Fourier Transform, Laplace Transform and z-Transform. This is for Electrical syllabus. My question is Do we need to learn DTFT? DFT? and Filters? Please could you check on this Thanks in advance.

[@UnacademyFlux]

No you don't need to study DTFT, DFT, FFT and Filters.

[@linganagoudb5565]

Thank you, If possible could you make a video of which topics the electrical students should cover in signals as well as digital electronics, I mean in detail/ Mention it in the blog? It'll be very helpful. Thanks.

[@ramyaniv9332]

Sir sry to say but the video is not audible

[@aditityagi2166]

thank u sir...

[@sujathagangireddy4781]

Clear :)

[@vikasrokana3053]

thank you sir

[@mohansarma4896]

TX alot sir

[@Bandhabi-u2l]

2:38

[@ravinderchhillar1551]

I am in first year of ee.Plzz anyone tell me,should I start preparation for gate now ?

[@UnacademyFlux]

don't start now..but you try to read standard text books of your current year subjects so that when you start your preparation it will be easy for you to understand the concepts

[@rakeshv46]

Need some more clarity,sir

[@ganeshvarma447]

Keka sir

[@montu56]

sir time is going please please please upload:-(

[@montu56]

sirr sir reply please

[@manishadas7434]

Sir ur english grammar and speaking is bad... what does it mean by splitting into a single energy band??? splitting means it will be divided

[@rvreddy737]

He is not english teacher he is a technical professor

[@karanrawat74]

Tum india mai reh rahe ho, tumhe hindi mai videos dalne mai sharam ati hai kya

[@UnacademyFlux]

karan rawat it's not like that sir, I don't know how to explain in Hindi technical concepts

[@karanrawat74]

Learning Z Everything fir thike

[@gsforall8772]

Sir use normal words in hindi Not technical one Although it’s also good 😀