If you meant 'photovoltaics' with your 'sellenium' (which is Selenium, and that, while light sensitive is not the compound used in solar cells, but Silicium) then the answer is a bit of both.
And it would need a lot more information from you to give you a real answer.
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[ 2.9 ms ] story [ 17.4 ms ] threadAnd it would need a lot more information from you to give you a real answer.
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