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For researchers at the University of Illinois, the key to a good solar panel is all in how you slice the silicon. John Rogers and his team of researchers at the University of Illinois at Urbana-Champaign have figured out how to slice monocrystalline solar wafers thin enough to be flexible and partially transparent but still maintain their high solar efficiency. The findings were published this weekend in Nature Materials. The slender silicon slices are then imprinted onto a substrate using Rogers' patented microtransfer printing process, the technological process that is the basis for his startup Semprius. Durham, N.C.-based Semprius, founded in 2005, is working on applying that microtransfer printing process to the manufacture of a number of electronics including LCDs, OLEDs, radio devices and large sensors. The company has... [read full story]
