Start-up Says It Can Make Solar Panels out of Dirty Silicon

[CNET NewsBlog] You can make solar panels with impure silicon, claims Roy Johnson. You just have to know how to isolate the undesirables. CaliSolar, a solar start-up that derives from research originally conducted at UC Berkeley, has come up with a way to make solar cells out of upgraded metallurgical silicon, which is less pure and less costly than the industry standard electrical grade silicon, according to Johnson, the company’s CEO, at a meeting at the Dow Jones Alternative Energy Innovations conference taking place this week.
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