Band gap means that difference in energy levels There may be difference in distances in energy levels in accordance with bohr distance but we are interested in energy soo We considered energy band gap
Sir , as we know that defining position of e is almost impossible, then how could we controll the number of e incase of semiconductor which you have mentioned.
Band gap is the forbidden region where electrons are not allowed to exist as per allowed quantum energy states. Conduction Band has allowed quantum energy states where electron can exist, but are empty.
sir, in which video did you tell the concept ,that even if the electron has less thermal energy it has a probability to excite from valance band to conduction band?
God gifted to watch this type of lectures for an ordinary student
Every electrical engineering student must watch this.
Electronics also
Plzz share more playlist for 1st year BTech
Very useful lectures, explained concept very easily.
Wow!! I was watching the whole lecture with my jaws open 😂... There's so much to learn 😍
Wow yur teaching style is too good sir love you sir
Excellent teaching sir.. thank you
thank you sir for your pricious lecture. 🙏🙏🙏
Excellent explanation sir ,thankyou
Awesome sir loved the way you told about band gap formation
u r really a great teacher thnx for ur efforts on videos it help me lot
Beautiful rendition
7:42 Band gap is supposed to be a distance then how we can measure it in electron volt, ev is energy unit?
Band gap means that difference in energy levels
There may be difference in distances in energy levels in accordance with bohr distance but we are interested in energy soo
We considered energy band gap
Not explaining by details. I think these courses require solid state understanding first.
Because, we measured the distance in Energy Axis. and usually we use the unit of energy as the eV unit instead of joul....
Very useful lectures
Sir will you plz refer me any book to study all des concepts which you taught in the lectures
u r great sir
thank you sir i m learning with you 🙏🙏🙏❤️❤️❤️
19:08 electron will move in opposite direction as given on board
Brilliant
very helpful sir .Thank you
so impressive sir
Awesome sir
Sir , as we know that defining position of e is almost impossible, then how could we controll the number of e incase of semiconductor which you have mentioned.
Relevant thing for me only start from 5:00 to 6:30
Sir why the energy shells splits into 4N and 4N equally
@3:30 you are saying that resistivity can be changed but truth is it cant be
thank you sir very much
Excellent explanation
💯💯💯
Sir, I want to give you something as gurudakshina . How can I do so ???
Thank you Sir 💯💯💯💯💯💯🙏🙏🙏🙏🙏🙏🙏
Sir, Is it possible to alter the energy gap of a semiconductor?
thanku sir😊
Sir,is the bang gap empty?
If so...how can we differentiate between band gap nd empty band?
Empty band is a band. Band gap is the difference in every between two adjacent bands
Band gap is the forbidden region where electrons are not allowed to exist as per allowed quantum energy states. Conduction Band has allowed quantum energy states where electron can exist, but are empty.
Can you please arrange order of the videos
What's periodic potential
Thanku sir 🤗🙏
sir, in which video did you tell the concept ,that even if the electron has less thermal energy it has a probability to excite from valance band to conduction band?
It is called quantum tunneling search it
From where we get pdf of note
From nptel site Search writing the course name.....
Can any one please tell me how the energy band gap of any material is calculated???
Why did the 2m come in the denominator 16:46
hk is the momentum. Which is basically mv. Since we write (hk)^2, that represents m^2.v^2. KE is m.v^2/2. So it's divided by 1/2m
they are shuffled up.
Would I get the slide pdf.? 🥹🥹🥹