PHY-XII-14 Solar Cell (2016) Pradeep Kshetrapal Physics

[@aimazafar7851]

perfect lecture with complete demonstration...extremely helpful for my presentation... #respect from Pakistan...💚

[@aimazafar7851]

but what if we take the upper layer as p-type...& holes in p-type layers are getting filled by electrons of lower layer(n-type), through the fingers of upper Anti-reflection layer... i mean can it still conduct elctricity...if we interchange the n-type & p-type layers???

[@sidddj]

If you take thin upper layer as P-type which has negligible electrons comparatively due to high doping, then photons(if they have high energy and intensity) will be able to ionise that particular electrons only due to which the conduction of those electrons will be negligible. Electrons from N-type(which is below P-type) will not be able to fill the holes of P-type since there is no applied external Voltage. So it will conduct electricity only due to the remaining electrons of the upper P-type. Also, photons will require more energy to penetrate deeper in upper P-type as they are very less electrons and high intensity of photons need to be required for this purpose. This is according to me, not sure that it is true.

[@jayeshbhatt2000]

Do you read same cource

[@all-rounder3400]

Such teacher are very rare in this world because he is not just a teacher he is a physicist

[@acharyaabhipsa1234]

Awesome sir. Your way of explanation and language is superb! Feeling blessed to have facilities to watch this. Thanks is a very small word for you🙏

[@asmanahdi7683]

A perfect physical science terminology is used understood in short time

[@tharunkumar3442]

An ultimate teacher with excellent knowledge about physics

[@rahulsbytes]

@7:46 I have a doubt. You didn't explain this part clearly. What happens if an electron becomes free near the p-type region? Will it be directly captured by holes due to the low resistance? You mentioned that this reasoning is incorrect, but isn't p-type also a type of semiconductor (metal)? I believe the electron flow is toward the n-type semiconductor because of the depletion layer's charge-positive on the n-type side and negative on the p-type side. That's why electrons move toward the n-type region, as it's positively charged.

[@jacobp.j4602]

Hello sir , why is the I-V characteristics in the fourth quadrant ?

[@lokeshsali5106]

Sir,which metal used in metallic fingers

[@prashantdixit2620]

What is the band gap of Si. ???? 🤔🤔🤔🤔🤔 Is it 0.6ev or 1.6 ev ?? In the video of LED at 15:49 sir told that the band gap of Si is 0.6ev and here at 18:50 he said that it is 1.6ev. I am very confused 🤔🤔🤔 Google says it is 1.17ev at 0 Kelvin and 1.11ev at 300 K.😖😖

[@buggativeyron4248]

It is 1.1 ev

[@shabanahashmi3388]

And also sir Belated happy birthday to you :))

[@jaishivray9207]

Naman he sir apko.... Adbhut padhaya....... Dhanyawad....

[@untold_cambridge]

Thank you. an addition from my side. at 8:20 the electrons drift toward finger coz of electric field present in direction from n side to p side due yo depletion region and similarly the generated holes prefer to move along the direction of field so they move toward copper back side and we get energy at load.

[@shubhankarmote9726]

Why is VI graph in the 4th quadrant

[@rahulsbytes]

you are right.

[@nidhaulakh1135]

thank u very much sir u r doing great for us

[@VijayKumar-rl9zb]

Thank you pradeep sirrrr......and RIP SIR

[@Androgamer-yx7tu]

Sir kya kahun aapp bohut achha samjhate hain.pls mere jaise students k liye har ek chapter ka complete videos banayiega pls.Thanks👏👏👏👏

[@parths.1903]

Sir, can we make the p type layer thin and n type layer thick. If no, then why ?

[@DrKKhan-rq2ex]

Amazing Lecture sir thank u

[@Naveenfrompurola]

Sir book me to p type ko thin lia hai kya hum P ya N me se kise thin layer le please guide sir

[@rutbawah8605]

V good v comprehensive and clear teaching

[@Sanjupekka123]

Very great technique sir easy explanation

[@imyouraddicted3145]

Thanku sir u were great, hope u rest in peach 🙏

[@mizanurrahaman8687]

Language & explanation are next level .

[@spblog1523]

Awesome Sir ! Thanks

[@vishalrana-mn2si]

awesome sir I really get too much knowledge ,thanks very much.....

[@shabanahashmi3388]

respected sir, can u pls upload logic gates please sir i totally rely on your lectures

[@KKC1020]

Nee bonda video ra yadava

[@kajalmishra923]

great job thank you sir

[@quantised1703]

16:25 - 16:55 Pradeep sir, In dual nature you taught that a 2eV photon ionises the atom in which an electron requires 2eV. A 3eV photon can't displace a 2eV electron. But here you are telling a 2Ev photon can ionize a 1.6eV electron. Am i wrong somewhere?

[@satyamtripathi7736]

He said .6 not 1.6

[@Mohit_ncs]

Why the current is taken negative on v-i curve? Plz explain

[@mathwork8208]

very good explanation

[@sureshtalagadadivi2386]

very good and simple way of explanation. nice presentation can be understood by a student

[@ramram-nq3lp]

Short circuit kis trah karenge

[@anujkainthla7610]

awesome explanation sir.how can I download these mp4 videos sir

[@bachpan2712]

sir I want to know in forward biased if all electron and holes present got diffused then how current continue to flow? how new electrons and holes created? and if we remove battery how the holes and electron comes to their original state??

[@skybird4223]

electron p ki tarf ja rahe Hain to electrical energy kis tarha produce hoti yani electrons kuch load ki tarf Katy hain

[@funinformationinterestingz9066]

sir till when the syllabus completed . thanks for uploading those wonderful lectures

[@AbhinavVerma-rq4bd]

Sir what you think about solar inverter

[@veldiaditya4503]

Sir your Explanation is awesome

[@milanmohanty5205]

Why the v - I characteristics is in 4 th quadrant??

[@devendranaik9280]

Sir,your way of explaination is very nice.Thank you sir.

[@StudybyAloksir]

I am sharma alok from sasaram and l want your help for read

[@jagatnarayan2515]

Best teacher

[@pritipathak4336]

Thanks sir

[@manmohanbisht69]

Sir why IV characteristics is drawn in first quadrant although it's in 4th quadrant

[@AR-jf9lu]

Sir is no more.

[@ashubabbar3322]

sir ,do we get dc current from solar cell or is it ac?

[@drujjawalrathore]

DC

[@DeepakSingh-te1mm]

Dc

[@habeebs6238]

dc

[@lifeisnotarace3889]

Superb .... sir

[@kapilhooda2373]

Really helped in my exam. Much love and respect sir

[@riazdaudzai7614]

May peace, mercy and blessing of Lord on you. Sir I'm highly impressed from you. Sir please write an introduction on solar tracking system

[@padmaangara5370]

Sir is no more

[@shadeeduliqaab]

Thank you so much sir..

[@divyanshsinghchandel2786]

very clear explanation

[@kishankaushik4411]

sir solar cell me cisium ka use kaha hota hai

[@thinkdifferent6036]

Sir we know force=m*a and we know electrons are knocked by photons to get current if they are knocking they are applying force that means they have mass but light is energy or matter????

[@hrishikeshverma2718]

Its matter when considering particle nature of light

[@vipulkummarwar]

Awesome.

[@saurabhkumarpandey46]

Thanks...sir..nice... explained..but. Sir...which...charge... revolves.. majority..aur... minority...or..both..

[@atulrana5983]

The graph is why in negative y axis??

[@arvindsingh8292]

Sir Mittal ke book me p type layer ki thikness is 0.2micron meter

[@arvindsingh8292]

Micro meter

[@nikkybansal2179]

Active( Chitra) ki book me bhi

[@__________.20yearsago22]

Ncert mai ~0.3 micrometer

[@parvezakhtarchoudhary1786]

As you mentioned there are silicon atoms in depletion region. My question is that are these an Immobile charges or neutral silicon atoms in depletion?

[@RakeshKumar-rc4sj]

These are bound charges kyunki p. N junction me jab electrons N se P me diffuse kre the jisse charges of atoms neutralise ho gye

[@wowsomeshorts3767]

THANKU SIR....

[@shouvikdam2342]

Thank you very much sir for teach thanks a lot

[@rameshverma118]

Thanks you Sir Did great job

[@kanishkrajawat885]

Thank you so much sir.....your videos really helps me a lot....

[@phanisivasyam7692]

Excellent sir

[@mdshanwazalam2465]

Why the direction of current shown in the graph is negative...can anyone explain

[@SanjuYadav-kp1pj]

U r great sir🙏

[@GautamBuddhaSiddarth]

sir please upload videos of Btech electrical or electronics video as we have these videos already in physics 2015 section

[@sitaramyadav1462]

Sir may I know that what is solar day in hindi please sir

[@shama_k2604]

Very helpful sir 🙏 🙏🙏

[@gouravsinghkushwah3388]

Ty sir ji😇😇😇

[@samarthnasabi3613]

Thank you sir....

[@TechbyAjay77]

Ajj ka paper bhi tha jo apne bataya thA

[@surendrakverma555]

Thanks Sir 🙏🙏🙏🙏🙏

[@simrandua6215]

pradeep sir plz upload all the parts of class 11 chemistry plz..sir I am in need sir plzz it will be a huge favor

[@vijendraparmar4476]

Thank you sir

[@mitrasen2295]

Thanku sir

[@ramram-nq3lp]

Kyu (+) find karta Hai

[@preetamkumar6572]

Sir you are great

[@kajalmishra923]

what a explanation sir

[@rihank5168]

thank you very much sir for this classes

[@jaatsachin4728]

Logic gates video upload sir please

[@sanaljoy5017]

Sir, may i know the diff between photodiode and solar cell...

[@CZPrakashSinnur]

where is PHY-XII-14-11

[@ahsanalirafaq805]

@@PradeepKshetrapal sir the depletion region is made up of holes and electrons and in the video you used a silicon atom with no charge and when light falls it gets separate into electron and holes , why did you use a intrinsic silicon atom??

[@ahsanalirafaq805]

@@PradeepKshetrapal yeah light falls on pn junction and there is a depletion region which have electric field not atoms , i m asking sir how did you get an electron hole pair in the depletion from the atom when there is only electric field present and no atoms??

[@ahsanalirafaq805]

sir mja 4:19 sa 5:11 tak ki samj nhi ai pleases easy words ma comment ma samjha dain

[@nikkybansal2179]

Metal plate ki vajah se photon junction TK nhi pahuche payyenge isliyye 15% . Bcz junction TK pahuchte pahuchte unki energy weak ho chuki hogi

[@renfredrm5954]

Thank u so much sir...¡

[@sooryapratap1776]

sir this is awesome

[@saiharshith6707]

sir can u please upload a video of how to find iv characteristics of a solar panel using labview software and also upload the code sir . This is an urgency sir can u upload it tomorrow 11a.m

[@shubham8122]

Anyone watching in march 2021

[@sandeeptiwari3655]

Sir plz MOSFET aur jfet ka video upload kijiye plz

[@suvodipsaha8166]

Please make more video for solar

[@Tlauncher-yq4se]

Very good

[@rahuldev752]

Very nice sir

[@trilokinath1518]

Verygoodsirthesolarsell

[@avinashdubey1806]

Thanks

[@shaileshsingh787]

very nice

[@shaileshsingh787]

good

[@shantellamend8986]

Instructions from the Avasva site are perfect for beginners.

[@thebishalpaul]

aaaree sir if we take r=0 then V=E-i(0) => V=E ; how V=0 as said by you?

[@sandeeptiwari3655]

Bishal P r=0 ohm is a ideal short circuit case Practically it is less but not zero.....that's why you see current is not infinite Ampere

[@rohanpachauri9777]

The resistance you put 0 there was internal resistance (r)so it doesn't make sense . Sir is talking about load resistance (R) so it's simple ohms law then v=IR = I ×0 = 0

[@electricalsuperfast3681]

Thanks sir electron isliye nki tarf chlta he because uske pass phle se pojitive charge he

[@InamUllah-zt7kz]

thankssssssss

[@anmolsharma9242]

Sir u r g8t

[@vrushabhdhond]

nice

[@AbrarHussain-ce6xq]

Sir you explained every topic very well I like your videos. Thanks

[@ajaymahto3457]

Nice

[@conceptgrasper.]

❤❤

[@taimoorkhan3055]

❤❤❤❤❤❤❤❤

[@zara-mx5rx]

Thank you Sir. You are the best.

[@CropCycle777]

Must