Silicon, the material of high-tech devices from computer chips to solar cells, requires a surface coating before use in these applications. The coating "passivates" the material, tying up loose atomic bonds to prevent oxidation that would ruin its electrical properties. But this passivation process consumes a lot of heat and energy, making it costly and limiting the kinds of materials that can be added to the devices.
URL: http://www.renewableenergyworld.com/rea/news/article/2013/02/a-cooler-way-to-protect-silicon-surfaces?cmpid=rss
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