Okay so i have been looking on the internet(just a note this is not my field of study so i am new to this) and i found a lot of people making their own solar cells and well i personally think most of them are fake so i checked some forms and how solar cells work and i saw they use copper why not aluminum i know it rust but if we look past the rust is there any other reason why aluminum is not used?
and can it be used if you want to build a solar cell even with low efficiency?
i think it is possible because both are conductors.
also i see a lot of people talking about thermal i am talking about electrical energy