you are viewing a single comment's thread
view the rest of the comments
[–] 3 points 7 months ago (1 child)

for solar panels you need silicon with 99.99% degree purity. (10^-4 parts of impurities) you don't get that easily with medieval peasant technology. you need a high-tech vacuum chamber and some chemical to do the purification for you, and also repeated heating/cooling down. Then you need to spray the heated gaseous silicon on a surface and let it cool down slowly so it crystallizes ...

  • source
  • parent
  • hideshow 1 child comment