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Solar cells - IV characteristics | Semiconductors | Physics | Khan Academy 

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Let's explore the VI characteristics of solar cells, and in general, photodiodes.
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Created by Mahesh Shenoy

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17 дек 2020

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Комментарии : 113   
@yosefstanton5470
@yosefstanton5470 3 года назад
You're so good at explaining! You should do an online course for university lecturers to learn how to teach!
@mayoor357
@mayoor357 Год назад
He did
@ayushaagrawal5550
@ayushaagrawal5550 2 года назад
Brilliantly explained !! Couldn't find a more easier and practical approach 🔥✨
@davidc1216
@davidc1216 3 года назад
Simply put, easy to understand......just what I needed!! Thank you
@nirmitgupta2956
@nirmitgupta2956 3 года назад
your videos are really well made. I really enjoyed semiconductor series!!!
@Mayank-mf7xr
@Mayank-mf7xr 2 года назад
Hands down one of the best explaination of IV characteristics of a solar cell.
@manmohanbisht69
@manmohanbisht69 3 года назад
Thts all I was searching for . Thank u very much sir . Lovely voice..
@prayass3788
@prayass3788 2 года назад
This is the most underrated video I've come across in my entire online learning journey till now. Kudos sir ❤️🙏👍
@jillmondt5398
@jillmondt5398 9 месяцев назад
Nice job. This fellow explains the fundamentals behind the IV curve in a way that makes the IV curve easier to grasp or understand. 👍
@drrajeevpandurangi
@drrajeevpandurangi 3 года назад
Mr shenoy , i understood the concept fully , thank you profffffff
@gursheenks
@gursheenks Год назад
Thanks a ton!! The last part blew me away! I had never thought of it like this. Very insightful video!
@imenebrb2720
@imenebrb2720 Год назад
You're a miracle at teaching! Thank you.
@dhrumilfultariya696
@dhrumilfultariya696 2 года назад
most underated video..awesome teaching..
@CreatorChetna_
@CreatorChetna_ 2 года назад
Never got a better explanation on this topic before😉
@wasimakram6878
@wasimakram6878 3 года назад
The Way of explaining everything awesome bro
@TheSaneInternational-SNI
@TheSaneInternational-SNI 3 года назад
Simply amazing.. thnq so much sir... All I can say is majja aa gaya
@r.kmoudgil2279
@r.kmoudgil2279 2 года назад
All the videos of this sir have so good explanation that people forget to like👍.
@indrashispowali
@indrashispowali Год назад
thank you very much for this amazing explanation..... makes life easy
@ShubhamSharma-hx4df
@ShubhamSharma-hx4df Год назад
Probably the best explanation of the topic.
@shresthajena6380
@shresthajena6380 2 года назад
Thank you so much, I was scrounging for the explanation and this is the exact thing I wanted😁😁😁
@channaveerayyamathapati8864
Fantastic Explanation sir, i loved it the way u have explained 🙏
@sindbad184
@sindbad184 Год назад
wonderful explaining, thanks
@eagleeye9020
@eagleeye9020 2 года назад
You are a teacher. Good one!
@ipmclasses8031
@ipmclasses8031 3 года назад
Absolutely classy
@alialbloushi6646
@alialbloushi6646 3 года назад
Thank you very much for making semiconductor videos
@syedfarhanahmed3476
@syedfarhanahmed3476 10 месяцев назад
I enjoyed semiconductor series Thanks a lot sir
@nareinparameswaran3042
@nareinparameswaran3042 2 года назад
Exceptional teaching..👏👌
@moodflix5053
@moodflix5053 Год назад
Tremendous explanation
@ranapratimsarma9506
@ranapratimsarma9506 3 года назад
Awesome. Really helpful.
@bbg6500
@bbg6500 3 года назад
Simple and logic explanation
@gowthamr435
@gowthamr435 4 месяца назад
My doubts have cleared, thank you so much, sir ❤
@manasipatil3698
@manasipatil3698 9 месяцев назад
Incredibly well explained
@nirensarkar7197
@nirensarkar7197 2 года назад
Sir please start a series covering complete textbook syllabus♥️🙏
@rambabueluri5493
@rambabueluri5493 Год назад
Very nice explanation. I understood clearly.
@prashanthkumar0
@prashanthkumar0 2 года назад
Thanks a lot... finally understood transistor ✌🏻✌🏻✌🏻✌🏻
@utube-nl8so
@utube-nl8so Год назад
so helpful! Thank you
@sarvajr1060
@sarvajr1060 2 года назад
you made my life better!! !!!! thank you
@mydistld4689
@mydistld4689 3 года назад
Needed this
@mspasstime9284
@mspasstime9284 Год назад
My god u r really having a best teaching capacity best best and the best
@pierpaolobembich2309
@pierpaolobembich2309 6 месяцев назад
You explain very well. Thanks
@elhambaghestani7643
@elhambaghestani7643 5 месяцев назад
Amazing explanation!
@amitsoren9662
@amitsoren9662 2 года назад
very well explained
@prachi4077
@prachi4077 Год назад
Very nicely explained
@kavitapal-2081
@kavitapal-2081 2 месяца назад
Great job sir🙏
@kareemmohamady8018
@kareemmohamady8018 7 месяцев назад
Thank you sir.
@muralikrishna-mr9qy
@muralikrishna-mr9qy 8 месяцев назад
Very very very nice explanitation
@kajal5584
@kajal5584 4 месяца назад
Thank you sir
@knightofthe21stcentury83
@knightofthe21stcentury83 6 месяцев назад
Really awesome explanation 👍
@mebsoumya0684
@mebsoumya0684 3 года назад
Awesome ❤️
@saiyamjain8890
@saiyamjain8890 2 года назад
This channel should grow to 190 milloin
@vanshikayadav9201
@vanshikayadav9201 2 года назад
Amazing.....
@shubh5614
@shubh5614 3 года назад
thank youuuu
@lakshmigowda4270
@lakshmigowda4270 Год назад
Thank you alot
@kiranolla6308
@kiranolla6308 2 года назад
Hey Khan...thanks man
@shrutimukherjee8378
@shrutimukherjee8378 5 месяцев назад
Thnks
@Vishwa2757
@Vishwa2757 Год назад
You are amazing!
@praveendintakurthi7463
@praveendintakurthi7463 3 года назад
Excellent
@tengisdashmunkh1787
@tengisdashmunkh1787 3 года назад
Thank youuu!!!
@darshanpadia9226
@darshanpadia9226 3 года назад
your videos are helping me a lot . please keep posting :)
@alice920124
@alice920124 2 года назад
Nice explanation
@koradaudaykiran6023
@koradaudaykiran6023 3 года назад
Fantastic
@mr.malayakumardas7741
@mr.malayakumardas7741 2 года назад
nice explanation
@user-gw2pi2js1v
@user-gw2pi2js1v 2 месяца назад
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
@ektathory4653
@ektathory4653 2 года назад
Very nice sir😘😘 I am from India
@sizzlingsavithri6025
@sizzlingsavithri6025 10 месяцев назад
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.
@narendratanty4604
@narendratanty4604 2 года назад
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.
@ranvir7454
@ranvir7454 3 года назад
How forward biased act as closed switch and reversed biased as open switch?
@pradroydip
@pradroydip 2 месяца назад
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.
@shaikrafik6300
@shaikrafik6300 3 года назад
Tq mr shenoy.....u made my day🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰 i was waiting for this.......vedio since long time😁😁😁😁😁😁😁😁😁
@ganeshraja1789
@ganeshraja1789 2 года назад
Sir.how do you get one electron and hole in depletion region?
@sp3associate
@sp3associate 3 года назад
Best
@vengat3556
@vengat3556 3 месяца назад
sir what is the reference book your using?
@suryanarayanan9906
@suryanarayanan9906 2 года назад
adipoli
@AK-fm2xn
@AK-fm2xn 3 года назад
Sir please complete this chapters
@RahisCoverWorld
@RahisCoverWorld 2 года назад
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
@aaclassroom
@aaclassroom 2 года назад
Why we get a negative voltage under reverse biased condition by attaching a battery?.
@themisterier
@themisterier 3 года назад
Isnt it supposed to be reversed for the I value? Should be up right not below 0 level
@racctor
@racctor 2 года назад
isnt voltage energy PER CHARGE, so charge accumulation shouldnt increase voltage ?
@srinivasadireddi
@srinivasadireddi 3 года назад
Beautiful teaching 💛
@niranjan7457
@niranjan7457 3 года назад
Sir at 08:51, why is it that there needs to be a Potential difference for current to flow across a resistance?
@KhanAcademyIndiaEnglish
@KhanAcademyIndiaEnglish 3 года назад
Ohm's law. V = IR. If you are wondering why Ohm's law, then I recommend going back to current electricity unit
@shahraanhussain6652
@shahraanhussain6652 Год назад
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?
@quanghuynhhung6516
@quanghuynhhung6516 7 месяцев назад
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
@yogharajar8211
@yogharajar8211 2 года назад
Why is there no recombination of electrons and holes when it accelerates towards N and P side?
@chokruby4683
@chokruby4683 6 месяцев назад
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.
@grooming-09
@grooming-09 3 года назад
GHULAMMAHAYUDIN ROLL.NO : 281 PHY EVENING 4rth SMESTER
@niranjan7457
@niranjan7457 3 года назад
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?
@sunilkumar-jd8tv
@sunilkumar-jd8tv 2 года назад
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.
@weirdowearingpants3104
@weirdowearingpants3104 Год назад
I love you
@akhilseelam3741
@akhilseelam3741 Месяц назад
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.
@ammaryasir1702
@ammaryasir1702 3 года назад
Ammar yasir bs physics 4th semester morning 221
@hkvamshi8754
@hkvamshi8754 3 года назад
First view and first like...
@MonidipaDey-sx7oj
@MonidipaDey-sx7oj 8 дней назад
So what we'll do 😢
@sivasurya4866
@sivasurya4866 2 года назад
Sir why it is called as IV characteristics instead of VI characteristics?
@muskanbura2775
@muskanbura2775 2 года назад
Bcoz we plot I vs V
@shreyaabaranwal877
@shreyaabaranwal877 3 года назад
you said zero voltage and high current flows, how is this possible becausevoltage is the reason why current is produced
@quanghuynhhung6516
@quanghuynhhung6516 7 месяцев назад
we are talking about Open-circuit voltage, not just a voltage. And short circuit current also not only current
@user-xu3ov2ub2q
@user-xu3ov2ub2q 3 года назад
ليششش ماكو ترجمة ائربك 🙂 عساس حيفهمونييي هسه 😂😔
@hunkar7969
@hunkar7969 3 года назад
256 present
@cricketpakistan5296
@cricketpakistan5296 3 года назад
M.Rashid Roll.,232 Phy.4th.samester Morning
@zeshanshani3538
@zeshanshani3538 3 года назад
Zeshan safdar roll no 242 bs physics morning 4th semester
@shivanis6247
@shivanis6247 3 года назад
the fact that majority of viewers of khan academy including me are indians
@SreenikethanI
@SreenikethanI 2 года назад
well this channel is for India specifically i guess
@negligibleteach9313
@negligibleteach9313 3 года назад
Faiz rasool 279
@aftabkhuhro4219
@aftabkhuhro4219 3 года назад
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.
@aakashhajari5253
@aakashhajari5253 2 года назад
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
@charuprabha4534
@charuprabha4534 3 года назад
Logic gates 😢
@TheSaneInternational-SNI
@TheSaneInternational-SNI 3 года назад
You can try edupoint.. its a good channel too!
@harishchad.
@harishchad. 2 года назад
the lecture was good but your accent is cringe...
@38RiteekaSehrawat
@38RiteekaSehrawat 2 года назад
Fantastic
@ammaryasir1702
@ammaryasir1702 3 года назад
Ammar yasir bs physics 4th semester morning 221
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