How Photovoltaic Solar Cells Work

[TheMrchrisi]

I need this for school :)

[LUCCIADVISESHOW]

thx this helped me a lot

[danthemanpatrick]

so simple...

[ckyborg]

Thank you this helped me alot

[mrams1]

very nice video

thank you

[MucusFelidae]

Why do the electrons move to the bottom of the cell,

and not up?

[davea0511]

He he he ... what a stupid vidio. The solar cell they show is UPSIDE-DOWN! Silicon PV cells have the P-type (created with silicon + Boron) in the BOTTOM (it's the substrate ... 99% of all wafers are p-type), and the N-Type (created with phosphorus) is in the TOP. At least they have the electrons being generated largely in the P-type (next to the pn junction) and getting trapped in the N-type region where they're then captured for doing useful work (creating potential - ie. voltage).

[jasonPianist]

excellent video. simple, but informative video. :) keep it up!

[hestro48]

This is a really good video. Explains the solar panels pretty well

[MrRuzo214]

Thank you.

[wariorx1z]

i heard that this causes cancer and that it leaks radiation or something is that true?

[iheartseizures]

@wariorx1z as long as the coating is thick enough on each solar cell to prevent the excess silicon from escaping, they are fine. If they aren't made to a set standard, this excess pure silicon can leak into the environment, and be somewhat harmful. Cancer causing no, but it is a toxin when released into the bloodstream.

[stapleshotz]

@wariorx1z no

[jessevortex]

wow real simple an straight forward, tnx

[nickep12000]

it's basically a big diode

[baeronautics]

but what appens to the atom when the elecron is released .. wouldnt it become unstable?? and react and form a new substance?

[Duckingitout]

@baeronautics This is true that the lost electron from an atom makes it unstable, but the idea of electricity is that electrons are always flowing through a circuit so fast that a metal can be said to have a new electron as soon as it loses the other so there is no need to worry that a metal will react and combust for whatever reason. Plus the cells are sealed behind a casing I believe. But research more into it, I could be wrong, but it seems logical to me that this is why photovoltaics works.

[QF483]

great vid, simple and easy to understand, helped me write notes for physics assessment and stopped me stressing, thanks for uploading :)

[pc4nae]

Every minute enough energy reaches the earth for to meet the need for one year?

Yet in a video titled “Introduction to Solar Photovoltaics”, they state every hour enough energy reaches earth to meet the need for one year. So which is it, you can’t both be right. Maybe neither of you are right? Who to believe these days...

[pegobuilders]

Great video....photovoltaic panels are probably the most cost-effective way of generating energy in the home. They are generated by daylight and work even in the UK's overcast climate

[ae5523]

you a right olsfen1...the n type layer is on top!

[Olsfen1]

You know what's funny, he's wrong. Solars cells work the other way around. The negative layer is on the top.

[UserIsAnFBIAgent]

Yeah, make them as big as you would like, or as big as you would need, and use Resistors to control the amount of electricity that comes out, or to control the flow of how much Voltage and Amperes you would like to come out. Easy.

[AeEgurl516]

yehey! thanks for explaining this and putting it on youtube, I really need this for our electronics subject, becuase it is my report.

[SSBBplayerD]

The most clear and to-the-point video I've found on PV solar panels.  thanks

[MakailaaJ]

Legend.

[yulianovtube]

the better explanation of how a solar cell works. thanks

[Soneclipseredvblue]

Nice! This is going to help in my presentation on renewable energy in my environmental science class. =) Awesome!

It's simple so some of the idiots in my class can understand it.

[JimmyTheGreek2000]

Why do you let idiots in your class.

Could be your explanations are not so clear and concise!

[Soneclipseredvblue]

I'm a student as well. I just happened to take Environmental Science, which is one of my more favorite sciences, but other students took it thinking it would be an easy A, which was for me, but not so much for them.

[ROXcursed]

Exactly what i was looking for, thanks.

[067077]

thank you for explaining it in a way I can actually understand.

[rhythmicgym4]

good job