Solar Cell 

It's great that you give this valuable information to the world for free. And 'free' does not mean that the quality is low. It's the opposite of it. Very clear. A lot of work. Again: Thank you!

Yet another astounding video! 5 stars from me!

GREAT illustrations and clear explanations! THANK YOU!

thank you for your work. Your narration is great.

Great job. It is very informative and fun to watch.

Excelente video. Great video! Thank you.

Fantastic once again.

This is a great video, I always wondered how those solar panels worked lol 5 stars from me to.

this is excellent! thank you & happy new year

Thanks a lot, there is always something you need to know :)

Do you know what kind of PN junction you need to generate an electrical current from ß rays? I have asked every science enthusiast I know of on youtube and no one knows. Help!

The video mentioned new generation solar cells at the end.can any1 plz tell me about this.

The language is English .... It is not electronics ... I like it!

great place

Yay I Like It Love You

How can I build my own solar cells???

thanks.

very nice

yay am learning :D

how did i get here from PC fans