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

[@yosefstanton5470]

You're so good at explaining! You should do an online course for university lecturers to learn how to teach!

[@mayoor357]

He did

[@SangrahShantel]

😂😂😂😂😂

[@nirmitgupta2956]

your videos are really well made. I really enjoyed semiconductor series!!!

[@ayushaagrawal5550]

Brilliantly explained !! Couldn't find a more easier and practical approach 🔥✨

[@akhilseelam3741]

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.

[@manmohanbisht69]

Thts all I was searching for . Thank u very much sir . Lovely voice..

[@davidc1216]

Simply put, easy to understand......just what I needed!! Thank you

[@jillmondt5398]

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]

Mr shenoy , i understood the concept fully , thank you profffffff

[@Mayank-mf7xr]

Hands down one of the best explaination of IV characteristics of a solar cell.

[@wasimakram6878]

The Way of explaining everything awesome bro

[@prayass3788]

This is the most underrated video I've come across in my entire online learning journey till now. Kudos sir ❤️🙏👍

[@dhrumilfultariya696]

most underated video..awesome teaching..

[@imenebrb2720]

You're a miracle at teaching! Thank you.

[@moodflix5053]

Tremendous explanation

[@TheSaneInternational-SNI]

Simply amazing.. thnq so much sir... All I can say is majja aa gaya

[@CreatorChetana]

Never got a better explanation on this topic before😉

[@gursheenks]

Thanks a ton!! The last part blew me away! I had never thought of it like this. Very insightful video!

[@ShubhamSharma-hx4df]

Probably the best explanation of the topic.

[@manasipatil3698]

Incredibly well explained

[@wgabrys88]

Love this, I was thinking about "oversaturation" of cells with the light (panel not connected to anything) - great teacher you are Sir 💪

[@shresthajena6380]

Thank you so much, I was scrounging for the explanation and this is the exact thing I wanted😁😁😁

[@indrashispowali]

thank you very much for this amazing explanation..... makes life easy

[@nareinparameswaran3042]

Exceptional teaching..👏👌

[@sindbad184]

wonderful explaining, thanks

[@r.kmoudgil2279]

All the videos of this sir have so good explanation that people forget to like👍.

[@gowthamr435]

My doubts have cleared, thank you so much, sir ❤

[@shreyask4808]

your concepts are crazy!

[@alv9]

Very very useful. Thank you!

[@syedfarhanahmed3476]

I enjoyed semiconductor series Thanks a lot sir

[@eagleeye9020]

You are a teacher. Good one!

[@ipmclasses8031]

Absolutely classy

[@bbg6500]

Simple and logic explanation

[@sarvajr1060]

you made my life better!! !!!! thank you

[@pierpaolobembich2309]

You explain very well. Thanks

[@mspasstime9284]

My god u r really having a best teaching capacity best best and the best

[@knightofthe21stcentury83]

Really awesome explanation 👍

[@abhiramr9459]

very good explanation😇

[@kavitapal-2081]

Great job sir🙏

[@elhambaghestani7643]

Amazing explanation!

[@prashanthkumar0]

Thanks a lot... finally understood transistor ✌🏻✌🏻✌🏻✌🏻

[@saiyamjain8890]

This channel should grow to 190 milloin

[@kiranolla6308]

Hey Khan...thanks man

[@utube-nl8so]

so helpful! Thank you

[@ranapratimsarma9506]

Awesome. Really helpful.

[@rambabueluri5493]

Very nice explanation. I understood clearly.

[@muralikrishna-mr9qy]

Very very very nice explanitation

[@lakshmigowda4270]

Thank you alot

[@ektathory4653]

Very nice sir😘😘 I am from India

[@Vishwa2757]

You are amazing!

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Tq mr shenoy.....u made my day🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰 i was waiting for this.......vedio since long time😁😁😁😁😁😁😁😁😁

[@alialbloushi6646]

Thank you very much for making semiconductor videos

[@channaveerayyamathapati8864]

Fantastic Explanation sir, i loved it the way u have explained 🙏

[@vanshikayadav9201]

Amazing.....

[@shrutimukherjee8378]

Thnks

[@sizzlingsavithri6025]

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.

[@aiasolarsolution3646]

We need other videos about this topic

[@shubh5614]

thank youuuu

[@alice920124]

Nice explanation

[@amitsoren9662]

very well explained

[@ShevernadzeLenga]

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

[@nirensarkar7197]

Sir please start a series covering complete textbook syllabus♥️🙏

[@praveendintakurthi7463]

Excellent

[@mydistld4689]

Needed this

[@criticalcringer4180]

Bro Could you please give info about series and shunt resistance ....of a solar cell

[@darshanpadia9226]

your videos are helping me a lot . please keep posting :)

[@tengisdashmunkh1787]

Thank youuu!!!

[@koradaudaykiran6023]

Fantastic

[@mebsoumya0684]

Awesome ❤️

[@narendratanty4604]

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.

[@hkvamshi8754]

First view and first like...

[@MonidipaDey-sx7oj]

So what we'll do 😢

[@sp3associate]

Best

[@NazmulHasan-y6z]

Sir, Photon at first hit to be n-type materials. Not to be depletion layar?

[@aaclassroom]

Why we get a negative voltage under reverse biased condition by attaching a battery?.

[@RahisCoverWorld]

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

[@srinivasadireddi]

Beautiful teaching 💛

[@shamirajsurvase8032]

Why doesnt the entire solid turn into depletion region after short circuiting?

[@siriram66]

This is notvalid question

[@shamirajsurvase8032]

​@@siriram66why?

[@AK-fm2xn]

Sir please complete this chapters

[@suryanarayanan9906]

adipoli

[@niranjan7457]

Sir at 08:51, why is it that there needs to be a Potential difference for current to flow across a resistance?

[@KhanAcademyIndiaEnglish]

Ohm's law. V = IR. If you are wondering why Ohm's law, then I recommend going back to current electricity unit

[@ranvir7454]

How forward biased act as closed switch and reversed biased as open switch?

[@vengat3556]

sir what is the reference book your using?

[@ganeshraja1789]

Sir.how do you get one electron and hole in depletion region?

[@niranjan7457]

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]

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.

[@shahraanhussain6652]

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]

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

[@racctor]

isnt voltage energy PER CHARGE, so charge accumulation shouldnt increase voltage ?

[@yogharajar8211]

Why is there no recombination of electrons and holes when it accelerates towards N and P side?

[@chokruby4683]

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.

[@themisterier]

Isnt it supposed to be reversed for the I value? Should be up right not below 0 level

[@grooming-09]

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[@pradroydip]

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.

[@sivasurya4866]

Sir why it is called as IV characteristics instead of VI characteristics?

[@muskanbura2775]

Bcoz we plot I vs V

[@مسحولةبأمرالسادس]

ليششش ماكو ترجمة ائربك 🙂 عساس حيفهمونييي هسه 😂😔

[@shreyaabaranwal877]

you said zero voltage and high current flows, how is this possible becausevoltage is the reason why current is produced

[@quanghuynhhung6516]

we are talking about Open-circuit voltage, not just a voltage. And short circuit current also not only current

[@aftabkhuhro4219]

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]

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

[@ammaryasir1702]

Ammar yasir bs physics 4th semester morning 221

[@hunkar7969]

256 present

[@shivanis6247]

the fact that majority of viewers of khan academy including me are indians

[@SreenikethanI]

well this channel is for India specifically i guess

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M.Rashid Roll.,232 Phy.4th.samester Morning

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Zeshan safdar roll no 242 bs physics morning 4th semester

[@charuprabha4534]

Logic gates 😢

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You can try edupoint.. its a good channel too!

[@negligibleteach9313]

Faiz rasool 279