Researchers develop technique to use dirty silicon, could pave way for cheaper solar energy

A research team led by engineers at the University of California, Berkeley, has developed a new technique to handle metal defects in low-grade silicon, an advance that could dramatically reduce the cost of solar cells.

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<p><a href="http://www.physorg.com/news5831.html">Researchers develop technique to use dirty silicon, could pave way for cheaper solar energy</a></p> <p> A research team led by engineers at the University of California, Berkeley, has developed a new technique to handle metal defects in low-grade silicon, an advance that could dramatically reduce the cost of solar cells.</p>