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Apr 3, 2013 at 1:24 comment added BarsMonster I think that this graph seems to be inacurate. I routinely observe thin Al metallization layers (~200nm-2000nm), and it's quite transparent in visible light (i.e. way higher than 10%). This was always puzzled me.
Jul 12, 2012 at 21:10 history answered ptomato CC BY-SA 3.0