When the electrons in silicon are excited by visible light and jump

[MotoPayton]

When the electrons in silicon are excited by visible light and jump into the conduction band how do the electrons replace?

So for example, wouldn't a solar cell only last for so long if all the valence electrons are excited and converted into current. I am looking at it as if all the valence electrons will be excited and all will be left are the core electrons??

I hope that is clear

-Chemistry student

 

[Borek]

Close the circuit.

It a way it is not much different from electrochemical batteries.