Solar cells - IV characteristics | Semiconductors | Physics | Khan Academy
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- Опубликовано: 25 авг 2024
- Let's explore the VI characteristics of solar cells, and in general, photodiodes.
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Created by Mahesh Shenoy
You're so good at explaining! You should do an online course for university lecturers to learn how to teach!
He did
your videos are really well made. I really enjoyed semiconductor series!!!
Brilliantly explained !! Couldn't find a more easier and practical approach 🔥✨
Thts all I was searching for .
Thank u very much sir .
Lovely voice..
Nice job. This fellow explains the fundamentals behind the IV curve in a way that makes the IV curve easier to grasp or understand. 👍
Simply put, easy to understand......just what I needed!! Thank you
This is the most underrated video I've come across in my entire online learning journey till now. Kudos sir ❤️🙏👍
Hands down one of the best explaination of IV characteristics of a solar cell.
The Way of explaining everything awesome bro
Mr shenoy , i understood the concept fully , thank you profffffff
Very very useful. Thank you!
most underated video..awesome teaching..
You're a miracle at teaching! Thank you.
Simply amazing.. thnq so much sir... All I can say is majja aa gaya
Never got a better explanation on this topic before😉
Thanks a ton!! The last part blew me away! I had never thought of it like this. Very insightful video!
All the videos of this sir have so good explanation that people forget to like👍.
Thank you so much, I was scrounging for the explanation and this is the exact thing I wanted😁😁😁
Tremendous explanation
Probably the best explanation of the topic.
thank you very much for this amazing explanation..... makes life easy
Appreciate your videos, just a minor correction, there is nothing called normal pn graph, it should be I-V graph under dark and under light/bright/illumination.
Incredibly well explained
I have read like 3 books on band theory many times and I failed to understand and only this one video I have understood all
wonderful explaining, thanks
Very very very nice explanitation
00:02 Solar cells convert light into voltage through the photovoltaic effect
01:42 As more electron-hole pairs accumulate, the voltage will eventually reach an equilibrium.
03:22 Solar cell IV characteristics explained
05:06 Short circuit in solar cells results in zero voltage and very high current.
06:39 Current is dependent on light intensity
08:17 Adding resistance affects current and voltage.
09:56 Increasing resistance increases voltage and reduces current.
11:32 Solar cells can't generate a negative voltage, but can achieve it by reverse biasing a battery.
We need other videos about this topic
Exceptional teaching..👏👌
Great job sir🙏
Absolutely classy
Thnks
Thank you sir.
So the current considered here is inside the cell... It's very confusing as some people shows the iv characteristics in 4th quadrant and some shows in 1st quadrant.
My doubts have cleared, thank you so much, sir ❤
Thank you sir
Simple and logic explanation
My god u r really having a best teaching capacity best best and the best
Sir please start a series covering complete textbook syllabus♥️🙏
I enjoyed semiconductor series
Thanks a lot sir
You are a teacher. Good one!
You explain very well. Thanks
This channel should grow to 190 milloin
Amazing explanation!
you made my life better!! !!!! thank you
Really awesome explanation 👍
Thanks a lot...
finally understood transistor ✌🏻✌🏻✌🏻✌🏻
Very nice explanation. I understood clearly.
Awesome. Really helpful.
solar cell is actually something that doesn't need of any biasing. But Photodiode does. Please do variate that. because to extend the IV curve at the end, you have confessed that what if diode has been connected to the biasing element. Rest all have a clear point in explanation.
Tq mr shenoy.....u made my day🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰 i was waiting for this.......vedio since long time😁😁😁😁😁😁😁😁😁
Since u are adding resistance, the voltage will increase but why are you plotting it in the negative side of the graph....im confused.
I think this graph will be plotted in the 1st quadrant and not the 4rt
Thank you very much for making semiconductor videos
Fantastic Explanation sir, i loved it the way u have explained 🙏
Thank you alot
so helpful! Thank you
Very nicely explained
Hey Khan...thanks man
thank youuuu
Very nice sir😘😘 I am from India
You are amazing!
Amazing.....
First view and first like...
So what we'll do 😢
nice explanation
your videos are helping me a lot . please keep posting :)
very well explained
Best
Nice explanation
Needed this
Fantastic
Excellent
sir what is the reference book your using?
Thank youuu!!!
Why we get a negative voltage under reverse biased condition by attaching a battery?.
Awesome ❤️
Sir please complete this chapters
How forward biased act as closed switch and reversed biased as open switch?
Sir.how do you get one electron and hole in depletion region?
i have a doubt, current flows opposite to electron flow, therefore if electron is accumulated at n-type and holes are accumulated at p-type then electron will flow from n-type to p-type and current will flow from p-type to n-type. does that makes sense?
let's me correct a bit for you. Electron will move from p-type to n-type because the affect of built-in electric field which was form during the contact of p-type bulk and n-type bulk. More detail, electron and hole will diffuse toward opsite side. Then at the depletion area electron will be localize at p-type side, hole will localize at n side. Generated electron/hole will be atracted by hole/electron (built-in field direction) toward to n/p-type bulk
Ammar yasir bs physics 4th semester morning 221
isnt voltage energy PER CHARGE, so charge accumulation shouldnt increase voltage ?
Isnt it supposed to be reversed for the I value? Should be up right not below 0 level
adipoli
I love you
Sir at 05:40
You mentioned that there won't be any charges left since they recombine and get destroyed, and that there won't be any charges accumulated. But what about the newly created charges (due to photons)?won't they accumulate? Will they too get destroyed immediately?
E.H.P generated by photon will travel towards N&P region continuously untill the photon incident on junction. But Due no load or short circuit of P & N terminal they start easily recombine also .Therefore charge will not accumulate on both P & N region just like open circuit case.As a result Isc will be max. In ckt. But Voc will be zero.
Sir at 08:51, why is it that there needs to be a Potential difference for current to flow across a resistance?
Ohm's law. V = IR. If you are wondering why Ohm's law, then I recommend going back to current electricity unit
Why is there no recombination of electrons and holes when it accelerates towards N and P side?
The electrons move to the N side, which means there is a large number of electrons and the holes are the minority, so the probability of recombination is low. The opposite goes to the holes.
Beautiful teaching 💛
GHULAMMAHAYUDIN
ROLL.NO : 281
PHY EVENING
4rth SMESTER
Sir why it is called as IV characteristics instead of VI characteristics?
Bcoz we plot I vs V
ليششش ماكو ترجمة ائربك 🙂
عساس حيفهمونييي هسه 😂😔
you said zero voltage and high current flows, how is this possible becausevoltage is the reason why current is produced
we are talking about Open-circuit voltage, not just a voltage. And short circuit current also not only current
256 present
M.Rashid
Roll.,232
Phy.4th.samester
Morning
I think increasing light intensity will not affect the current because current depends upon frequency of light (plank's equation) not intensity of light. Hence, more number of photons do not guarantee more current but higher frequency do.
Increasing light intensity means more photon which means more splitting of electron hole pair and generation of more free electrons and holes>>>>> & current is directly proportional to number of charge carriers
Zeshan safdar roll no 242 bs physics morning 4th semester
Logic gates 😢
You can try edupoint.. its a good channel too!
Faiz rasool 279
the fact that majority of viewers of khan academy including me are indians
well this channel is for India specifically i guess
the lecture was good but your accent is cringe...