There are plenty of contestants: the traditional approach of building crystalline solar cells, pairs relatively higher efficiency with higher costs.

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Trouble is the Big Three will still need more money to help them meet the technology investments needed to comply with last year's energy bill, which requires them to meet higher fuel-efficiency standards by 2020.

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And those with lower sleep efficiency, the amount of time they spent in bed asleep, were at higher risk too.

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With this arrangement, Samsung and Nanosys will work together to create a new generation of cost effective, higher-efficiency products in the fields of solar, LED, memory, semiconductor, and display.

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