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February 17th, 2010
Nanopillars Boost Solar Efficiency
Abstract:
Thin-film solar cells are less expensive than traditional photovoltaics sliced from wafers, but they're not as efficient at converting the energy in sunlight into electricity. Now a Newton, MA-based startup is developing a nanostructured design that overcomes one of the main constraints on the performance of thin-film solar cells. Solasta fabricates on arrays of nanopillars, rather than flat areas, boosting the efficiency of amorphous silicon solar cells to about 10 percent--still less than crystalline silicon panels, but more than the thin-film amorphous silicon panels on the market today. The company says that the design won't require new equipment or materials and that it will license its technology to amorphous-silicon manufacturers at the end of this year.
Source:
technologyreview.com
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