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Explain the working of solar cell.

shivajikobardan

Oct 21, 2021
39
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Oct 21, 2021
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It has been 5 years since I studied physics. And my physics basics are rusty. I feel like I am understanding but in fact I am not..

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I will explain what I understand (my half baked information that I collected from various sources).


N type is thin.

P type is thick.


When n and p are connected, pn junction is formed. Some electrons migrate from n to p and some holes migrate from p to n.

So a depletion region is formed. Depletion region has no free charge.

(Are pn junction and depletion region same?)


Incident sunlight breaks the electron hole bond pair then free electrons go to n side and free holes go to p side (that is the original arrangement, then what did we gain??)


Please explain in short brief to me.
 

Bluejets

Oct 5, 2014
5,991
Joined
Oct 5, 2014
Messages
5,991
Usual to do a search on Google as it will have been explained there many times and in detail.
One example here.......
 

shivajikobardan

Oct 21, 2021
39
Joined
Oct 21, 2021
Messages
39
hmm most explanations in internet abstract the details (as most are made for laymans)..that's why I was asking here. I googled a lot already.
 
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