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

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

[@yosefstanton5470]

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

[@mayoor357]

He did

[@nirmitgupta2956]

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

[@ayushaagrawal5550]

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

[@davidc1216]

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

[@manmohanbisht69]

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

[@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. 👍

[@prayass3788]

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

[@Mayank-mf7xr]

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

[@dhrumilfultariya696]

most underated video..awesome teaching..

[@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.

[@imenebrb2720]

You're a miracle at teaching! Thank you.

[@wasimakram6878]

The Way of explaining everything awesome bro

[@drrajeevpandurangi]

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

[@TheSaneInternational-SNI]

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

[@moodflix5053]

Tremendous explanation

[@ShubhamSharma-hx4df]

Probably the best explanation of the topic.

[@CreatorChetna_]

Never got a better explanation on this topic before😉

[@r.kmoudgil2279]

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

[@nareinparameswaran3042]

Exceptional teaching..👏👌

[@manasipatil3698]

Incredibly well explained

[@gursheenks]

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

[@shresthajena6380]

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

[@ipmclasses8031]

Absolutely classy

[@indrashispowali]

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

[@sindbad184]

wonderful explaining, thanks

[@muralikrishna-mr9qy]

Very very very nice explanitation

[@kavitapal-2081]

Great job sir🙏

[@bbg6500]

Simple and logic explanation

[@aiasolarsolution3646]

We need other videos about this topic

[@shrutimukherjee8378]

Thnks

[@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.

[@eagleeye9020]

You are a teacher. Good one!

[@kareemmohamady8018]

Thank you sir.

[@user-gw2pi2js1v]

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

[@kajal5584]

Thank you sir

[@gowthamr435]

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

[@ranapratimsarma9506]

Awesome. Really helpful.

[@syedfarhanahmed3476]

I enjoyed semiconductor series
Thanks a lot sir

[@mspasstime9284]

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

[@nirensarkar7197]

Sir please start a series covering complete textbook syllabus♥️🙏

[@pierpaolobembich2309]

You explain very well. Thanks

[@saiyamjain8890]

This channel should grow to 190 milloin

[@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.

[@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.

[@elhambaghestani7643]

Amazing explanation!

[@sarvajr1060]

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

[@knightofthe21stcentury83]

Really awesome explanation 👍

[@rambabueluri5493]

Very nice explanation. I understood clearly.

[@alialbloushi6646]

Thank you very much for making semiconductor videos

[@utube-nl8so]

so helpful! Thank you

[@sp3associate]

Best

[@channaveerayyamathapati8864]

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

[@prachi4077]

Very nicely explained

[@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

[@prashanthkumar0]

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

[@lakshmigowda4270]

Thank you alot

[@vanshikayadav9201]

Amazing.....

[@shaikrafik6300]

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

[@kiranolla6308]

Hey Khan...thanks man

[@amitsoren9662]

very well explained

[@Vishwa2757]

You are amazing!

[@mydistld4689]

Needed this

[@praveendintakurthi7463]

Excellent

[@ektathory4653]

Very nice sir😘😘 I am from India

[@mr.malayakumardas7741]

nice explanation

[@38RiteekaSehrawat]

Fantastic

[@alice920124]

Nice explanation

[@shubh5614]

thank youuuu

[@vengat3556]

sir what is the reference book your using?

[@tengisdashmunkh1787]

Thank youuu!!!

[@mebsoumya0684]

Awesome ❤️

[@darshanpadia9226]

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

[@aaclassroom]

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

[@hkvamshi8754]

First view and first like...

[@MonidipaDey-sx7oj]

So what we'll do 😢

[@AK-fm2xn]

Sir please complete this chapters

[@suryanarayanan9906]

adipoli

[@ammaryasir1702]

Ammar yasir bs physics 4th semester morning 221

[@ranvir7454]

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

[@weirdowearingpants3104]

I love you

[@racctor]

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

[@ganeshraja1789]

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

[@themisterier]

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

[@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

[@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.

[@grooming-09]

GHULAMMAHAYUDIN
ROLL.NO : 281
PHY EVENING
4rth SMESTER

[@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

[@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.

[@srinivasadireddi]

Beautiful teaching 💛

[@user-xu3ov2ub2q]

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

[@sivasurya4866]

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

[@muskanbura2775]

Bcoz we plot I vs V

[@hunkar7969]

256 present

[@cricketpakistan5296]

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

[@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

[@zeshanshani3538]

Zeshan safdar roll no 242 bs physics morning 4th semester

[@charuprabha4534]

Logic gates 😢

[@TheSaneInternational-SNI]

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

[@shivanis6247]

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

[@SreenikethanI]

well this channel is for India specifically i guess

[@negligibleteach9313]

Faiz rasool 279

[@harishchad.]

the lecture was good but your accent is cringe...

[@koradaudaykiran6023]

Fantastic