3 ms·
Cu2o is still about 2-3x as expensive, though.
by debacle 14y ago
Cu2o is still about 2-3x as expensive, though.
- mchannon 14y agoSilicon wafers (cheap ones) cost about $150/kg. Polysilicon (good luck making a wafer out of it) costs about $30/kg (market has crashed). Copper costs about $7.50/kg.