<http://schema.org/description>
"A team from MIT have sought to bring down the cost yet maintain the efficiency of silicon solar cells by reducing the thickness by more than 90%. By implementing a pattern of tiny inverted pyramids into the surface of the silicon, these indentations, each less than a millionth of a meter across, are able to trap light rays just as effectively as a solid silicon surface - which is 30 times thicker."^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/mit-develops-inverted-nanopyramid-solar-surface-that-cuts-silicon-use-by-90-in-photovoltaic-cells/>